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Bearing Tolerance Chart Explained

Release time : 2023-07-31 15:57:48

CONTENTS

The precise world of bearings revolves around detailed measurements and exacting specifications. One critical tool for ensuring optimal bearing performance is the bearing tolerance chart. This vital reference provides insights into how bearings can fit and function within machinery, underscoring the importance of accurate measurements in bearing applications.

 

What is a Bearing Tolerance Chart?

A bearing tolerance chart is a detailed guideline, outlining the permissible limits of variation in a bearing's dimensions. It serves to aid in the selection of the right bearings for specific applications, detailing key parameters such as inner and outer diameters, radial play, and axial play.

 

Why is it Important to Consult a Bearing Tolerance Chart?

Accurate interpretation of a bearing tolerance chart is key to achieving a proper bearing fit and function. It helps avoid premature bearing failure, which can result from improper fit, thereby enhancing the performance and efficiency of the machinery.

 

How to Interpret a Bearing Tolerance Chart

Interpreting a bearing tolerance chart requires an understanding of a few critical concepts:

  • Tolerance Class: Each row usually represents a specific bearing type within a tolerance class, ranging from high to low precision, each suitable for various applications.
  • Dimensional Values: Tolerance charts present dimensions like ID, OD, and radial and axial play, indicating acceptable measurement ranges for bearings.
  • Radial Play and Axial Play: These values denote the bearing's permissible 'play' in radial and axial directions, crucial in applications with substantial load or movement along these axes.
  • Match to Application Requirements: The right bearing with the appropriate tolerance class can make all the difference. Table 1 below provides a comprehensive overview of the required performance, corresponding applications, and the suitable tolerance class for different scenarios.

Table 1 High precision bearing applications

Required performance Applications Tolerance class
High accuracy in runout is required for rolling elements. Acoustic / visual equipment spindles (VTR, tape recorders) P5, P4
Radar / parabola antenna slewing shafts P4
Machine tool spindles P5, P4, P2, ABEC9
Computers, magnetic disc spindles P5, P4, P2, ABEC9
Aluminum foil roll necks P5
Multi-stage mill backing bearings P4
High speed rotation Dental spindles P2, ABMA5P, ABMA7P
Superchargers P5, P4
Jet engine spindles and accessories P5, P4
Centrifugal separators P5, P4
LNG pumps P5
Turbo molecular pump spindles and touch-down P5, P4
Machine tool spindles P5, P4, P2, ABEC9
Tension reels P5, P4
Low friction or low friction variation is required. Control equipment (synchronous motors, servomotors, gyro gimbals) P4, ABMA7P
Measuring instruments P5
Machine tool spindles P5, P4, P2, ABEC9

Bearing Tolerance Chart

Bearing tolerances, as well as the allowable values for the boundary dimensions and operational accuracy of bearings, are specified.

The rules governing these tolerances are set out in JIS B 1514-1, -2, and -3, addressing roller bearings with a focus on part 1: radial bearings, part 2: thrust bearings, and part 3: permissible chamfer dimensions. These JIS regulations are based on the corresponding ISO standards.

Bearing tolerances are categorized into six classes: 0, 6X, 6, 5, 4, and 2, with precision increasing with the class number.

Class 0 bearings suffice for regular use, while Class 5 or higher bearings are needed for intense conditions, as shown in Table 1.

These tolerances, conforming to ISO standards, may have different names globally. Table 2 outlines specific tolerances per bearing class and pertinent bearing organizations.

Standards and organizations concerned with bearings include:

  • JIS : Japanese Industrial Standard
  • BAS : The Japan Bearing Industrial Association Standard
  • ISO : International Organization for Standardization
  • ANSI : American National Standards Institute, Inc.
  • ABMA : American Bearing Manufactures Association
  • DIN : Deutsches Institut für Normung
  • BS : British Standards Institution
  • NF : Association Francaise de Normalisation

Table 2 Bearing type and tolerance class

 

Bearing type Applied standards Applied tolerance class Tolerance table
Deep groove ball bearing JIS B 1514-1 Class 0 - Class 6 Class 5 Class 4 Class 2 Table 3
Angular contact ball bearing Class 0 - Class 6 Class 5 Class 4 Class 2
Self-aligning ball bearing Class 0 - - - - -
Cylindrical roller bearing Class 0 - Class 6 Class 5 Class 4 Class 2
Needle roller bearing (machined ring type) JIS B 1536-1 Class 0 - - - - -
Tapered roller bearing Metric series (single-row) JIS B 1514-1 Class 0 Class 6X (Class 6) Class 5 Class 4 Class 2 Table 5
Metric series (double or four-row) BAS 1002 Class 0 - - - - - Table 6
Inch series ANSI/ABMA Class4 - Class 2 Class 3 Class 0 Class 00 Table 7
Metric series (J-series)   Class PK - Class PN Class PC Class PB - Table 8
Spherical roller bearing JIS B 1514-1 Class 0 - - - - - Table 3
Thrust ball bearing JIS B 1514-2 Class 0 - Class 6 Class 5 Class 4 - Table 9
Spherical thrust roller bearing Class 0 - - - - - Table 10
Double direction angular contact thrust ball bearing - - - Equivalent to class 5 Equivalent to class 4 - -
(Reference) Class comparison ISO Radial bearing ISO 492 Normal Class Class 6X Class 6 Class 5 Class 4 Class 2 -
Thrust bearing ISO 199 Normal Class - Class 6 Class 5 Class 4 - -
DIN Radial and thrust bearings DIN 620 Normal Class Class 6X Class 6 Class 5 Class 4 Class 2 -
BS BS 6107
NF NF E 22-335
ANSI Radial bearing ABMA std. 20 ABEC 1 - ABEC 3 ABEC 5 ABEC 7 ABEC 9 -
RBEC 1 - RBEC 3 RBEC 5 - -
Instrument ball bearing ABMA std. 12 - - Class 3P Class 5P Class 7P Class 9P Table 4
ABMA Class 5T Class 7T
Tapered roller bearing ABMA std. 19 Class 4 - Class 2 Class 3 Class 0 Class 00 Table 7
Class K - Class N Class C Class B Class A

 

To illustrate the precision of dimensions and operation for various bearing types, we'll use the example of radial bearing tolerances, excluding tapered roller bearings. See Table 3.

Table 3 JIS B 1514-1: Radial bearing tolerances (tapered roller bearings excluded)

 

(1) Inner ring (bore diameter)

Unit : μm
Nominal bore diameter
d
mm		 Single plane mean bore diameter deviation
Δdmp		 Single bore diameter deviation
Δds1）		 Single plane bore diameter variation Vdsp Mean bore diameter variation
Vdmp
Diameter series 7,8,9 Diameter series 0, 1 Diameter series 2, 3, 4 Dia. series1）
class 0 class 6 class 5 class 4 class 2 class 4 class 2 class 0 class 6 class 5 class 4 class 0 class 6 class 5 class 4 class 0 class 6 class 5 class 4 class 2 class 0 class 6 class 5 class 4 class 2
over up to upper lower upper lower upper lower upper lower upper lower upper lower upper lower max. max. max. max. max.
- 0.6 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
0.6 2.5 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
2.5 10 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
10 18 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 6 5 3 2 1.5
18 30 0 －10 0 －8 0 －6 0 －5 0 －2.5 0 －5 0 －2.5 13 10 6 5 10 8 5 4 8 6 5 4 2.5 8 6 3 2.5 1.5
30 50 0 －12 0 －10 0 －8 0 －6 0 －2.5 0 －6 0 －2.5 15 13 8 6 12 10 6 5 9 8 6 5 2.5 9 8 4 3 1.5
50 80 0 －15 0 －12 0 9 0 －7 0 －4 0 －7 0 －4 19 15 9 7 19 15 7 5 11 9 7 5 4 11 9 5 3.5 2
80 120 0 －20 0 －15 0 －10 0 －8 0 －5 0 －8 0 －5 25 19 10 8 25 19 8 6 15 11 8 6 5 15 11 5 4 2.5
120 150 0 －25 0 －18 0 －13 0 －10 0 －7 0 －10 0 －7 31 23 13 10 31 23 10 8 19 14 10 8 7 19 14 7 5 3.5
150 180 0 －25 0 －18 0 －13 0 －10 0 －7 0 －10 0 －7 31 23 13 10 31 23 10 8 19 14 10 8 7 19 14 7 5 3.5
180 250 0 －30 0 －22 0 －15 0 －12 0 －8 0 －12 0 －8 38 28 15 12 38 28 12 9 23 17 12 9 8 23 17 8 6 4
250 315 0 －35 0 －25 0 －18 0 －15 - - 0 －15 - - 44 31 18 15 44 31 14 11 26 19 14 11 - 26 19 9 8 -
315 400 0 －40 0 －30 0 －23 0 －18 - - 0 －18 - - 50 38 23 18 50 38 18 14 30 23 18 14 - 30 23 12 9 -
400 500 0 －45 0 －35 0 －28 0 －23 - - 0 －23 - - 56 44 28 23 56 44 21 17 34 26 21 17 - 34 26 14 12 -
500 630 0 －50 0 －40 0 －35 - - - - - - - - 63 50 35 - 63 50 26 - 38 30 26 - - 38 30 18 - -
630 800 0 －75 0 －50 0 －45 - - - - - - - - 94 63 45 - 94 63 34 - 56 38 34 - - 56 38 23 - -
800 1000 0 －100 0 －60 0 －60 - - - - - - - - 125 75 60 - 125 75 45 - 75 45 45 - - 75 45 30 - -
1000 1250 0 －125 0 －75 0 －75 - - - - - - - - 156 94 75 - 156 94 56 - 94 56 56 - - 94 56 38 - -
1250 1600 0 －160 - - - - - - - - - - - - 200 - - - 200 - - - 120 - - - - 120 - - - -
1600 2000 0 －200 - - - - - - - - - - - - 250 - - - 250 - - - 150 - - - - 150 - - - -

 

 

(2) Inner ring (running accuracy and width)

Unit : μm
Nominal bore diameter
d
mm		 Radial runout of assembled bearing inner ring
Kia		 Perpendicularity of inner ring face with respect to the bore
Sd		 Axial runout of assembled bearing inner ring
Sia2）		 Single inner ring width deviation
ΔBs		 Single inner ring width deviation
ΔBs3）		 Inner ring width variation
VBs
class 0 class 6 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 class 0 class 6 class 5 class 4 class 2 class 04) class 64) class 54) class 4, 2 class 0 class 6 class 5 class 4 class 2
over up to max. max. max. upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower max.
- 0.6 10 5 4 2.5 1.5 7 3 1.5 7 3 1.5 0 －40 0 －40 0 －40 0 －40 0 －40 - - - - 0 －250 0 －250 12 12 5 2.5 1.5
0.6 2.5 10 5 4 2.5 1.5 7 3 1.5 7 3 1.5 0 －40 0 －40 0 －40 0 －40 0 －40 - - - - 0 －250 0 －250 12 12 5 2.5 1.5
2.5 10 10 6 4 2.5 1.5 7 3 1.5 7 3 1.5 0 －120 0 －120 0 －40 0 －40 0 －40 0 －250 0 －250 0 －250 0 －250 15 15 5 2.5 1.5
10 18 10 7 4 2.5 1.5 7 3 1.5 7 3 1.5 0 －120 0 －120 0 －80 0 －80 0 －80 0 －250 0 －250 0 －250 0 －250 20 20 5 2.5 1.5
18 30 13 8 4 3 2.5 8 4 1.5 8 4 2.5 0 －120 0 －120 0 －120 0 －120 0 －120 0 －250 0 －250 0 －250 0 －250 20 20 5 2.5 1.5
30 50 15 10 5 4 2.5 8 4 1.5 8 4 2.5 0 －120 0 －120 0 －120 0 －120 0 －120 0 －250 0 －250 0 －250 0 －250 20 20 5 3 1.5
50 80 20 10 5 4 2.5 8 5 1.5 8 5 2.5 0 －150 0 －150 0 －150 0 －150 0 －150 0 －380 0 －380 0 －250 0 －250 25 25 6 4 1.5
80 120 25 13 6 5 2.5 9 5 2.5 9 5 2.5 0 －200 0 －200 0 －200 0 －200 0 －200 0 －380 0 －380 0 －380 0 －380 25 25 7 4 2.5
120 150 30 18 8 6 2.5 10 6 2.5 10 7 2.5 0 －250 0 －250 0 －250 0 －250 0 －250 0 －500 0 －500 0 －380 0 －380 30 30 8 5 2.5
150 180 30 18 8 6 5 10 6 4 10 7 5 0 －250 0 －250 0 －250 0 －250 0 －250 0 －500 0 －500 0 －380 0 －380 30 30 8 5 4
180 250 40 20 10 8 5 11 7 5 13 8 5 0 －300 0 －300 0 －300 0 －300 0 －300 0 －500 0 －500 0 －500 0 －500 30 30 10 6 5
250 315 50 25 13 10 - 13 8 - 15 9 - 0 －350 0 －350 0 －350 0 －350 - - 0 －500 0 －500 0 －500 - - 35 35 13 8 -
315 400 60 30 15 13 - 15 9 - 20 12 - 0 －400 0 －400 0 －400 0 －400 - - 0 －630 0 －630 0 －630 - - 40 40 15 9 -
400 500 65 35 20 15 - 18 11 - 25 15 - 0 －450 0 －450 0 －450 0 －450 - - - - - - - - - - 50 45 18 11 -
500 630 70 40 25 - - 25 - - 30 - - 0 －500 0 －500 0 －500 - - - - - - - - - - - - 60 50 20 - -
630 800 80 50 30 - - 30 - - 35 - - 0 －750 0 －750 0 －750 - - - - - - - - - - - - 70 60 23 - -
800 1000 90 60 40 - - 40 - - 45 - - 0 －1000 0 －1000 0 －1000 - - - - - - - - - - - - 80 60 35 - -
1000 1250 100 70 50 - - 50 - - 60 - - 0 －1250 0 －1250 0 －1250 - - - - - - - - - - - - 100 60 45 - -
1250 1600 120 - - - - - - - - - - 0 －1600 - - - - - - - - - - - - - - - - 120 - - - -
1600 2000 140 - - - - - - - - - - 0 －2000 - - - - - - - - - - - - - - - - 140 - - - -

 

(3) Outer ring (outside diameter)

Unit : μm
Nominal outside dia.
D
mm		 Single plane mean outside diameter deviation
ΔDmp		 Single outside diameter deviation
ΔDs1）		 Single plane outside diameter variationVDsp Mean outside diameter variation
VDmp
Diameter series 7, 8, 9 Diameter series 0, 1 Diameter series 2, 3, 4 Dia. series1） Shielded/sealed type
Diameter series
2,3,4 0,1,2,3,4
class 0 class 6 class 5 class 4 class 2 class 45) class 2 class 02) class 62) class 55) class 45) class 02) class 62) class 55) class 45) class 02) class 62) class 55) class 45) class 2 class 02) class 62) class 02) class 62) class 5 class 4 class 2
over up to upper lower upper lower upper lower upper lower upper lower upper lower upper lower max. max. max. max. max. max.
- 2.5 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
2.5 6 - －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
6 18 0 －8 0 －7 0 －5 0 －4 0 －2.5 0 －4 0 －2.5 10 9 5 4 8 7 4 3 6 5 4 3 2.5 10 9 6 5 3 2 1.5
18 30 0 －9 0 －8 0 －6 0 －5 0 －4 0 －5 0 －4 12 10 6 5 9 8 5 4 7 6 5 4 4 12 10 7 6 3 2.5 2
30 50 0 －11 0 －9 0 －7 0 －6 0 －4 0 －6 0 －4 14 11 7 6 11 9 5 5 8 7 5 5 4 16 13 8 7 4 3 2
50 80 0 －13 0 －11 0 －9 0 －7 0 －4 0 －7 0 －4 16 14 9 7 13 11 7 5 10 8 7 5 4 20 16 10 8 5 3.5 2
80 120 0 －15 0 －13 0 －10 0 －8 0 －5 0 －8 0 －5 19 16 10 8 19 16 8 6 11 10 8 6 5 26 20 11 10 5 4 2.5
120 150 0 －18 0 －15 0 －11 0 －9 0 －5 0 －9 0 －5 23 19 11 9 23 19 8 7 14 11 8 7 5 30 25 14 11 6 5 2.5
150 180 0 －25 0 －18 0 －13 0 －10 0 －7 0 －10 0 －7 31 23 13 10 31 23 10 8 19 14 10 8 7 38 30 19 14 7 5 3.5
180 250 0 －30 0 －20 0 －15 0 －11 0 －8 0 －11 0 －8 38 25 15 11 38 25 11 8 23 15 11 8 8 - - 23 15 8 6 4
250 315 0 －35 0 －25 0 －18 0 －13 0 －8 0 －13 0 －8 44 31 18 13 44 31 14 10 26 19 14 10 8 - - 26 19 9 7 4
315 400 0 －40 0 －28 0 －20 0 －15 0 －10 0 －15 0 －10 50 35 20 15 50 35 15 11 30 21 15 11 10 - - 30 21 10 8 5
400 500 0 －45 0 －33 0 －23 0 －17 - - 0 －17 - - 56 41 23 17 56 41 17 13 34 25 17 13 - - - 34 25 12 9 -
500 630 0 －50 0 －38 0 －28 0 －20 - - 0 －20 - - 63 48 28 20 63 48 21 15 38 29 21 15 - - - 38 29 14 10 -
630 800 0 －75 0 －45 0 －35 - - - - - - - - 94 56 35 - 94 56 26 - 55 34 26 - - - - 55 34 18 - -
800 1000 0 －100 0 －60 0 －50 - - - - - - - - 125 75 50 - 125 75 38 - 75 45 38 - - - - 75 45 25 - -
1000 1250 0 －125 0 －75 0 －63 - - - - - - - - 156 94 63 - 156 94 47 - 94 56 47 - - - - 94 56 31 - -
1250 1600 0 －160 0 －90 0 －80 - - - - - - - - 200 113 80 - 200 113 60 - 120 68 60 - - - - 120 68 40 - -
1600 2000 0 －200 0 －120 - - - - - - - - - - 250 150 - - 250 150 - - 150 90 - - - - - 150 90 - - -
2000 2500 0 －250 - - - - - - - - - - - - 313 - - - 313 - - - 188 - - - - - - 188 - - - -

 

(4) Outer ring (running accuracy and width)

Unit：µm
Nominal outside dia.
D
mm		 Radial runout of assembled bearing outer ring
Kea		 perpendicularity of outer ring outside surface with respect to the face
SD4）		 axial runout of assembled bearing outer ring
Sea3）4）		 Ring width variation
ΔCs3）		 Ring width variation
VCs3）
class 0 class 6 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 classes 0,6,5,4,2 classes 0,6 class 5 class 4 class 2
over up to max. max. max. upper lower max.
- 2.5 15 8 5 3 1.5 8 4 1.5 8 5 1.5 Shall conform to the tolerance ΔBs on d of the same bearing Shall conform to the tolerance VBs on d of the same bearing 5 2.5 1.5
2.5 6 15 8 5 3 1.5 8 4 1.5 8 5 1.5 5 2.5 1.5
6 18 15 8 5 3 1.5 8 4 1.5 8 5 1.5 5 2.5 1.5
18 30 15 9 6 4 2.5 8 4 1.5 8 5 2.5 5 2.5 1.5
30 50 20 10 7 5 2.5 8 4 1.5 8 5 2.5 5 2.5 1.5
50 80 25 13 8 5 4 8 4 1.5 10 5 4 6 3 1.5
80 120 35 18 10 6 5 9 5 2.5 11 6 5 8 4 2.5
120 150 40 20 11 7 5 10 5 2.5 13 7 5 8 5 2.5
150 180 45 23 13 8 5 10 5 2.5 14 8 5 8 5 2.5
180 250 50 25 15 10 7 11 7 4 15 10 7 10 7 4
250 315 60 30 18 11 7 13 8 5 18 10 7 11 7 5
315 400 70 35 20 13 8 13 10 7 20 13 8 13 8 7
400 500 80 40 23 15 - 15 12 - 23 15 - 15 9 -
500 630 100 50 25 18 - 18 13 - 25 18 - 18 11 -
630 800 120 60 30 - - 20 - - 30 - - 20 - -
800 1000 140 75 40 - - 23 - - 40 - - 23 - -
1000 1250 160 85 45 - - 30 - - 45 - - 30 - -
1250 1600 190 95 60 - - 45 - - 60 - - 45 - -
1600 2000 220 110 - - - - - - - - - - - -
2000 2500 250 - - - - - - - - - - - - -

 

 

Accuracies for dimensions and running of other bearing types are listed in:

  • Table 4 ANSI/ABMA: Tolerances for measuring instrument ball bearings (inch series)

(1) Inner ring and outer ring width

Unit : μm
Nominal bore dia.
d
mm		 Single plane mean bore diameter deviation
Δdmp		 Single bore diameter deviation
Δds		 Single plane bore diameter variation
Vdsp		 Mean bore diameter variation
Vdmp		 Radial runout of assembled bearing inner ring
Kia		 Axial runout of assembled bearing inner ring
Sia		 Perpendicularity of inner ring face with respect to the bore
Sd		 Single inner or outer ring width deviation
ΔBs , ΔCs		 Inner or outer ring width variation
VBs ,VCs
Classes
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Classes
5P, 7P, 9P		 Class
5P		 Class
7P		 Class
9P
over up to upper lower upper lower upper lower upper lower max. max. max. max. max. upper lower max.
- 10 0 －5.1 0 －2.5 0 －5.1 0 －2.5 2.5 1.3 2.5 1.3 3.8 2.5 1.3 7.6 2.5 1.3 7.6 2.5 1.3 0 －25.4 5.1 2.5 1.3
10 18 0 －5.1 0 －2.5 0 －5.1 0 －2.5 2.5 1.3 2.5 1.3 3.8 2.5 1.3 7.6 2.5 1.3 7.6 2.5 1.3 0 －25.4 5.1 2.5 1.3
18 30 0 －5.1 0 －2.5 0 －5.1 0 －2.5 2.5 1.3 2.5 1.3 3.8 3.8 2.5 7.6 3.8 1.3 7.6 3.8 1.3 0 －25.4 5.1 2.5 1.3

(2) Outer ring

Unit : μm
Nominal outside dia.
D
mm		 Single plane mean outside diameter deviation
ΔDmp		 Single outside diameter deviation
ΔDs		 Single plane outside diameter variation
VDsp		 Mean outside diameter variation
VDmp		 Radial runout of assembled bearing outer ring
Kea		 Axial runout of assembled bearing outer ring
Sea		 Perpendicularity of outer ring outside surface with respect to the face
SD		 Single outer ring flange outside diameter deviation
ΔD1s		 Single outer ring flange width deviation
ΔC1s
Class
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Classes
5P, 7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Class
5P		 Class
7P		 Class
9P		 Classes
5P, 7P		 Classes
5P, 7P
Open type Shielded/sealed type Open type Open type Shielded/sealed type Open type Open type Shielded/sealed type Open type
over up to upper lower upper lower upper lower upper lower upper lower max. max. max. max. max. upper lower upper lower
- 18 0 －5.1 0 －2.5 0 －5.1 ＋1 －6.1 0 －2.5 2.5 5.1 1.3 2.5 5.1 1.3 5.1 3.8 1.3 7.6 5.1 1.3 7.6 3.8 1.3 0 －25.4 0 －50.8
18 30 0 －5.1 0 －3.8 0 －5.1 ＋1 －6.1 0 －3.8 2.5 5.1 2 2.5 5.1 2 5.1 3.8 2.5 7.6 5.1 2.5 7.6 3.8 1.3 0 －25.4 0 －50.8
30 50 0 －5.1 0 －3.8 0 －5.1 ＋1 －6.1 0 －3.8 2.5 5.1 2 2.5 5.1 2 5.1 5.1 2.5 7.6 5.1 2.5 7.6 3.8 1.3 0 －25.4 0 －50.8


  • Table 5 JIS B 1514-1: Tolerances for metric series tapered roller bearings

(1) Inner ring

Unit : μm
Nominal bore diameter
d
mm		 Single plane mean bore diameter deviation
Δdmp		 Single bore diameter deviation
Δds		 Single plane bore diameter variation
Vdsp		 Mean bore diameter variation
Vdmp		 Radial runout of assembled bearing inner ring
Kia		 perpendicularity of inner ring face with respect to the bore
Sd		 axial runout of assembled bearing inner ring
Sia		 Single inner ring width deviation
ΔBs
classes 0, 6X classes 6, 5 class 4 class 2 class 4 class 2 classes 0, 6X class 6 class 5 class 4 class 2 classes 0, 6X class 6 class 5 class 4 class 2 classes 0,6X class 6 class 5 class 4 class 2 class 5 class 4 class 2 class 4 class 2 class 0 class 6X class 6 classes 5, 4 class 2
over up to upper lower upper lower upper lower upper lower upper lower upper lower max. max. max. max. max. upper lower upper lower upper lower upper lower upper lower
- 10 0 －12 0 －71) 0 －5 0 －4 0 －5 0 －4 12 - 5 4 2.5 9 - 5 4 1.5 15 - 5 3 2 7 3 1.5 3 2 0 －120 0 －50 - - 0 －200 0 －200
10 18 0 －12 0 －7 0 －5 0 －4 0 －5 0 －4 12 7 5 4 2.5 9 5 5 4 1.5 15 7 5 3 2 7 3 1.5 3 2 0 －120 0 －50 0 －120 0 －200 0 －200
18 30 0 －12 0 －8 0 －6 0 －4 0 －6 0 －4 12 8 6 5 2.5 9 6 5 4 1.5 18 8 5 3 2.5 8 4 1.5 4 2.5 0 －120 0 －50 0 －120 0 －200 0 －200
30 50 0 －12 0 －10 0 －8 0 －5 0 －8 0 －5 12 10 8 6 3 9 8 5 5 2 20 10 6 4 2.5 8 4 2 4 2.5 0 －120 0 －50 0 －120 0 －240 0 －240
50 80 0 －15 0 －12 0 －9 0 －5 0 －9 0 －5 15 12 9 7 4 11 9 6 5 2 25 10 7 4 3 8 5 2 4 3 0 －150 0 －50 0 －150 0 －300 0 －300
80 120 0 －20 0 －15 0 －10 0 －6 0 －10 0 －6 20 15 11 8 5 15 11 8 5 2.5 30 13 8 5 3 9 5 2.5 5 3 0 －200 0 －50 0 －200 0 －400 0 －400
120 180 0 －25 0 －18 0 －13 0 －7 0 －13 0 －7 25 18 14 10 7 19 14 9 7 3.5 35 18 11 6 4 10 6 3.5 7 4 0 －250 0 －50 0 －250 0 －500 0 －500
180 250 0 －30 0 －22 0 －15 0 －8 0 －15 0 －8 30 22 17 11 7 23 16 11 8 4 50 20 13 8 5 11 7 5 8 5 0 －300 0 －50 0 －300 0 －600 0 －600
250 315 0 －35 0 －251) 0 －18 0 －8 0 －18 0 －8 35 25 19 12 8 26 19 13 9 5 60 30 13 9 6 13 8 5.5 9 6 0 －350 0 －50 0 －350 0 －700 0 －700
315 400 0 －40 0 －301) - - - - - - - - 40 30 23 - - 30 23 15 - - 70 35 15 - - 15 - - - - 0 －400 0 －50 0 －400 0 －8002) - -
400 500 0 －45 0 －351) - - - - - - - - 45 35 28 - - 34 26 17 - - 80 40 20 - - 17 - - - - 0 －450 0 －50 0 －450 0 －9002) - -
500 630 0 －60 0 －401) - - - - - - - - 60 40 35 - - 40 30 20 - - 90 50 25 - - 20 - - - - 0 －500 - - 0 －500 0 －11002) - -
630 800 0 －75 0 －501) - - - - - - - - 75 50 45 - - 45 38 25 - - 100 60 30 - - 25 - - - - 0 －750 - - 0 －750 0 －16002) - -
800 1000 0 －100 0 －601) - - - - - - - - 100 60 60 - - 55 45 30 - - 115 75 37 - - 30 - - - - 0 －1000 - - 0 －1000 0 －20002) - -

(2-1) Outer ring

Unit : μm
Nominal outside diameter
D
mm		 Single plane mean outside diameter deviation
ΔDmp		 Single outside diameter deviation
ΔDs		 Single plane outside diameter variation
VDsp		 Mean outside diameter variation
VDmp		 Radial runout of assembled bearing outer ring
Kea		 perpendicularity of outer ring outside surface with respect to the face
SD3)		 axial runout of assembled bearing outer ring
Sea3)
classes 0, 6X classes 6, 5 class 4 class 2 class 4 class 2 classes 0, 6X class 6 class 5 class 4 class 2 classes 0, 6X class 6 class 5 class 4 class 2 classes 0,6X class 6 class 5 class 4 class 2 class 5 class 4 class 2 class 4 class 2
over up to upper lower upper lower upper lower upper lower upper lower upper lower max. max. max. max. max.
- 18 0 －12 0 －81) 0 －6 0 －5 0 －6 0 －5 12 - 6 5 4 9 - 5 4 2.5 18 - 6 4 2.5 8 4 1.5 5 2.5
18 30 0 －12 0 －8 0 －6 0 －5 0 －6 0 －5 12 8 6 5 4 9 6 5 4 2.5 18 9 6 4 2.5 8 4 1.5 5 2.5
30 50 0 －14 0 －9 0 －7 0 －5 0 －7 0 －5 14 9 7 5 4 11 7 5 5 2.5 20 10 7 5 2.5 8 4 2 5 2.5
50 80 0 －16 0 －11 0 －9 0 －6 0 －9 0 －6 16 11 8 7 4 12 8 6 5 2.5 25 13 8 5 4 8 4 2.5 5 4
80 120 0 －18 0 －13 0 －10 0 －6 0 －10 0 －6 18 13 10 8 5 14 10 7 5 3 35 18 10 6 5 9 5 3 6 5
120 150 0 －20 0 －15 0 －11 0 －7 0 －11 0 －7 20 15 11 8 5 15 11 8 6 3.5 40 20 11 7 5 10 5 3.5 7 5
150 180 0 －25 0 －18 0 －13 0 －7 0 －13 0 －7 25 18 14 10 7 19 14 9 7 4 45 23 13 8 5 10 5 4 8 5
180 250 0 －30 0 －20 0 －15 0 －8 0 －15 0 －8 30 20 15 11 8 23 15 10 8 5 50 25 15 10 7 11 7 5 10 7
250 315 0 －35 0 －25 0 －18 0 －9 0 －18 0 －9 35 25 19 14 8 26 19 13 9 5 60 30 18 11 7 13 8 6 10 7
315 400 0 －40 0 －28 0 －20 0 －10 0 －20 0 －10 40 28 22 15 10 30 21 14 10 6 70 35 20 13 8 13 10 7 13 8
400 500 0 －45 0 －331) - - - - - - - - 45 33 26 - - 34 25 17 - - 80 40 24 - - 17 - - - -
500 630 0 －50 0 －381) - - - - - - - - 60 38 30 - - 38 29 20 - - 100 50 30 - - 20 - - - -
630 800 0 －75 0 －451) - - - - - - - - 80 45 38 - - 55 34 25 - - 120 60 36 - - 25 - - - -
800 1000 0 －100 0 －601) - - - - - - - - 100 60 50 - - 75 45 30 - - 140 75 43 - - 30 - - - -
1000 1250 0 －125 0 －801) - - - - - - - - 130 75 65 - - 90 56 38 - - 160 85 52 - - 38 - - - -
1250 1600 0 －160 0 －1001) - - - - - - - - 170 90 90 - - 100 68 50 - - 180 95 62 - - 50 - - - -

(2-2) Outer ring

Unit : μm
Nominal bore diameter
d
mm		 Single outer ring width deviation
ΔCs
class 6X classes 0,6,5,4,2
over up to upper lower upper lower
- 10 0 －100 Shall comform to the tolerance ΔBs on d of the same bearing
10 18 0 －100
18 30 0 －100
30 50 0 －100
50 80 0 －100
80 120 0 －100
120 180 0 －100
180 250 0 －100
250 315 0 －100
315 400 0 －100
400 500 0 －100
500 630 - -
630 800 - -
800 1000 - -

(3) Assembled bearing width and effective width

Unit : μm
Nominal bore diameter
d
mm		 Actual bearing width deviation
ΔTs		 Actual effective inner sub-unit width deviation
ΔT1s		 Actual effective outer ring width deviation
ΔT2s
class 0 class 6X class 6 classes 5, 4 class 2 class 0 class 6X classes 5, 4級 class 2 class 0 class 6X classes 5, 4級 class 2
over up to upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower
- 10 ＋200 0 ＋100 0 - - ＋200 －200 ＋200 －200 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100
10 18 ＋200 0 ＋100 0 ＋200 0 ＋200 －200 ＋200 －200 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100
18 30 ＋200 0 ＋100 0 ＋200 0 ＋200 －200 ＋200 －200 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100
30 50 ＋200 0 ＋100 0 ＋200 0 ＋200 －200 ＋200 －200 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100
50 80 ＋200 0 ＋100 0 ＋200 0 ＋200 －200 ＋200 －200 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100 ＋100 0 ＋50 0 ＋100 －100 ＋100 －100
80 120 ＋200 －200 ＋100 0 ＋200 －200 ＋200 －200 ＋200 －200 ＋100 －100 ＋50 0 ＋100 －100 ＋100 －100 ＋100 －100 ＋50 0 ＋100 －100 ＋100 －100
120 180 ＋350 －250 ＋150 0 ＋350 －250 ＋350 －250 ＋200 －250 ＋150 －150 ＋50 0 ＋150 －150 ＋100 －100 ＋200 －100 ＋100 0 ＋200 －100 ＋100 －150
180 250 ＋350 －250 ＋150 0 ＋350 －250 ＋350 －250 ＋200 －300 ＋150 －150 ＋50 0 ＋150 －150 ＋100 －150 ＋200 －100 ＋100 0 ＋200 －100 ＋100 －150
250 315 ＋350 －250 ＋200 0 ＋350 －250 ＋350 －250 ＋200 －300 ＋150 －150 ＋100 0 ＋150 －150 ＋100 －150 ＋200 －100 ＋100 0 ＋200 －100 ＋100 －150
315 400 ＋400 －400 ＋200 0 ＋400 －400 ＋400 －4001) - - ＋200 －200 ＋100 0 ＋200 －2001) - - ＋200 －200 ＋100 0 ＋200 －2001) - -
400 500 ＋450 －450 ＋200 0 ＋400 －400 ＋450 －4501) - - ＋225 －225 ＋100 0 ＋225 －2251) - - ＋225 －225 ＋100 0 ＋225 －2251) - -
500 630 ＋500 －500 - - ＋500 －500 ＋500 －5001) - - - - - - - - - - - - - - - - - -
630 800 ＋600 －600 - - ＋600 －600 ＋600 －6001) - - - - - - - - - - - - - - - - - -
800 1000 ＋750 －750 - - ＋750 －750 ＋750 －7501) - - - - - - - - - - - - - - - - - -


  • Table 6 BAS 1002: Tolerances for metric series double-row and four-row tapered roller bearings (class 0)

(1) Inner ring, outer ring width and overall width

Unit : μm
Nominal bore diameter
d
mm		 Single plane mean bore diameter deviation
Δdmp		 Single plane bore diameter variation
Vdsp		 Mean bore diameter variation
Vdmp		 radial runout of assembled bearing inner ring
Kia		 Single outer ring or inner ring width deviation
ΔBs , ΔCs		 Actual overall inner rings/outer rings width deviation
Double-row
Ts		 Four-row
ΔTs , ΔWs
over up to upper lower max. max. max. upper lower upper lower upper lower
30 50 0 －12 12 9 20 0 －120 ＋240 －240 - -
50 80 0 －15 15 11 25 0 －150 ＋300 －300 - -
80 120 0 －20 20 15 30 0 －200 ＋400 －400 ＋500 －500
120 180 0 －25 25 19 35 0 －250 ＋500 －500 ＋600 －600
180 250 0 －30 30 23 50 0 －300 ＋600 －600 ＋750 －750
250 315 0 －35 35 26 60 0 －350 ＋700 －700 ＋900 －900
315 400 0 －40 40 30 70 0 －400 ＋800 －800 ＋1000 －1000
400 500 0 －45 45 34 80 0 －450 ＋900 －900 ＋1200 －1200
500 630 0 －60 60 40 90 0 －500 ＋1000 －1000 ＋1200 －1200
630 800 0 －75 75 45 100 0 －750 ＋1500 －1500 - -
800 1000 0 －100 100 55 115 0 －1000 ＋1500 －1500 - -

(2) Outer ring

Unit : μm
Nominal outside diameter
D
mm		 Single plane mean outside diameter deviation
ΔDmp		 Single plane outside diameter variation
VDsp		 Mean outside diameter variation
VDmp		 Radial runout of assembled bearing outer ring
Kea
over up to upper lower max. max. max.
50 80 0 －16 16 12 25
80 120 0 －18 18 14 35
120 150 0 －20 20 15 40
150 180 0 －25 25 19 45
180 250 0 －30 30 23 50
250 315 0 －35 35 26 60
315 400 0 －40 40 30 70
400 500 0 －45 45 34 80
500 630 0 －50 60 38 100
630 800 0 －75 80 55 120
800 1000 0 －100 100 75 140
1000 1250 0 －125 130 90 160
1250 1600 0 －160 170 100 180


  • Table 7 ANSI/ABMA 19: Tolerances and permissible values for inch series tapered roller bearings

(1) Inner ring

Unit : μm
Applied bearing type Nominal bore diameter
d, mm（1/25.4）		 Deviation of a single bore diameter　Δds
Class 4 Class 2 Class 3 Class 0 Class 00
over up to upper lower upper lower upper lower upper lower upper lower
All types - 76.2（3.0） ＋13 0 ＋13 0 ＋13 0 ＋13 0 ＋8 0
76.2（3.0） 266.7（10.5） ＋25 0 ＋25 0 ＋13 0 ＋13 0 ＋8 0
266.7（10.5） 304.8（12.0） ＋25 0 ＋25 0 ＋13 0 ＋13 0 ＋8 0
304.8（12.0） 609.6（24.0） ＋51 0 ＋51 0 ＋25 0 - - - -
609.6（24.0） 914.4（36.0） ＋76 0 - - ＋38 0 - - - -
914.4（36.0） 1219.2（48.0） ＋102 0 - - ＋51 0 - - - -
1219.2（48.0） - ＋127 0 - - ＋76 0 - - - -

(2) Outer ring

Unit : μm
Applied bearing type Nominal outside diameter
D, mm（1/25.4）		 Deviation of a single outside diameter　ΔDs
Class 4 Class 2 Class 3 Class 0 Class 00
over up to upper lower upper lower upper lower upper lower upper lower
All types - 266.7（10.5） ＋25 0 ＋25 0 ＋13 0 ＋13 0 ＋8 0
266.7（10.5） 304.8（12.0） ＋25 0 ＋25 0 ＋13 0 ＋13 0 ＋8 0
304.8（12.0） 609.6（24.0） ＋51 0 ＋51 0 ＋25 0 - - - -
609.6（24.0） 914.4（36.0） ＋76 0 ＋76 0 ＋38 0 - - - -
914.4（36.0） 1219.2（48.0） ＋102 0 - - ＋51 0 - - - -
1219.2（48.0） - ＋127 0 - - ＋76 0 - - - -

(3) Radial runout of assembled bearing inner ring/outer ring

Unit : μm
Applied bearing type Nominal outside diameter
D, mm（1/25.4）		 Radial runout of inner ring/outer ring　Kia , Kea
Class 4 Class 2 Class 3 Class 0 Class 00
over up to max. max. max. max. max.
All types - 266.7（10.5） 51 38 8 4 2
266.7（10.5） 304.8（12.0） 51 38 8 4 2
304.8（12.0） 609.6（24.0） 51 38 18 - -
609.6（24.0） 914.4（36.0） 76 51 51 - -
914.4（36.0） 1219.2（48.0） 76 - 76 - -
1219.2（48.0） - 76 - 76 - -

(4) Assembled bearing width and overall width

Unit : μm
Applied bearing type Nominal bore diameter
d, mm（1/25.4）		 Nominal outside diameter
D, mm（1/25.4）		 Deviation of the actual bearing width and overall width of inner rings/outer rings　ΔTs , ΔWs
Class 4 Class 2 Class 3 classes 0,00
over up to over up to upper lower upper lower upper lower upper lower
Single-row - 101.6（4.0） - - ＋203 0 ＋203 0 ＋203 －203 ＋203 －203
101.6（4.0） 266.7（10.5）     ＋356 －254 ＋203 0 ＋203 －203 ＋203 －203
266.7（10.5） 304.8（12.0） - - ＋356 －254 ＋203 0 ＋203 －203 ＋203 －2031)
304.8（12.0） 609.6（24.0） - 508.0（20.0） - - ＋381 －381 ＋203 －203 - -
304.8（12.0） 609.6（24.0） 508.0（20.0） - - - ＋381 －381 ＋381 －381 - -
609.6（24.0）   - - ＋381 －381 - - ＋381 －381 - -
Double-row - 101.6（4.0） - - ＋406 0 ＋406 0 ＋406 －406 ＋406 －406
101.6（4.0） 266.7（10.5） - - ＋711 －508 ＋406 －203 ＋406 －406 ＋406 －406
266.7（10.5） 304.8（12.0） - - ＋711 －508 ＋406 －203 ＋406 －406 ＋406 －4061)
304.8（12.0） 609.6（24.0） - 508.0（20.0） - - ＋762 －762 ＋406 －406 - -
304.8（12.0） 609.6（24.0） 508.0（20.0） - - - ＋762 －762 ＋762 －762 - -
609.6（24.0）   - - ＋762 －762 - - ＋762 －762 - -
Double-row
(TNA type)		 - 127.0（5.0） - - - - ＋254 0 ＋254 0 - -
127.0（5.0）   - - - - ＋762 0 ＋762 0 - -
Four-row Total dimensional range - - ＋1524 －1524 ＋1524 －1524 ＋1524 －1524 ＋1524 －1524


  • Table 8 Tolerances for metric J series tapered roller bearings

(1) Bore diameter and width of inner ring and assembled bearing width

Unit : μm
Nominal bore diameter
d
mm		 Deviation of a single bore diameter
Δds		 Deviation of a single inner ring width
ΔBs		 Deviation of the actual bearing width
ΔTs
Class PK Class PN Class PC Class PB Class PK Class PN Class PC Class PB Class PK Class PN Class PC Class PB
over up to upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower
10 18 0 －12 0 －12 0 －7 0 －5 0 －100 0 －50 0 －200 0 －200 ＋200 0 ＋100 0 ＋200 －200 ＋200 －200
18 30 0 －12 0 －12 0 －8 0 －6 0 －100 0 －50 0 －200 0 －200 ＋200 0 ＋100 0 ＋200 －200 ＋200 －200
30 50 0 －12 0 －12 0 －10 0 －8 0 －100 0 －50 0 －200 0 －200 ＋200 0 ＋100 0 ＋200 －200 ＋200 －200
50 80 0 －15 0 －15 0 －12 0 －9 0 －150 0 －50 0 －300 0 －300 ＋200 0 ＋100 0 ＋200 －200 ＋200 －200
80 120 0 －20 0 －20 0 －15 0 －10 0 －150 0 －50 0 －300 0 －300 ＋200 －200 ＋100 0 ＋200 －200 ＋200 －200
120 180 0 －25 0 －25 0 －18 0 －13 0 －200 0 －50 0 －300 0 －300 ＋350 －250 ＋150 0 ＋350 －250 ＋200 －250
180 250 0 －30 0 －30 0 －22 0 －15 0 －200 0 －50 0 －350 0 －350 ＋350 －250 ＋150 0 ＋350 －250 ＋200 －300
250 315 0 －35 0 －35 0 －22 0 －15 0 －200 0 －50 0 －350 0 －350 ＋350 －250 ＋200 0 ＋350 －300 ＋200 －300

(2) Outside diameter and width of outer ring and radial runout of assembled bearing inner ring/ outer ring

Unit : μm
Nominal outside diameter
D
mm		 Deviation of a single outside diameter
ΔDs		 Deviation of a single outer ring width
ΔCs		 Radial runout of inner ring/outer ring
Kia, Kea
Class PK Class PN Class PC Class PB Class PK Class PN Class PC Class PB Class PK Class PN Class PC Class PB
over up to upper lower upper lower upper lower upper lower upper lower upper lower upper lower upper lower max. max. max. max.
18 30 0 －12 0 －12 0 －8 0 －6 0 －150 0 －100 0 －150 0 －150 18 18 5 3
30 50 0 －14 0 －14 0 －9 0 －7 0 －150 0 －100 0 －150 0 －150 20 20 6 3
50 80 0 －16 0 －16 0 －11 0 －9 0 －150 0 －100 0 －150 0 －150 25 25 6 4
80 120 0 －18 0 －18 0 －13 0 －10 0 －200 0 －100 0 －200 0 －200 35 35 6 4
120 150 0 －20 0 －20 0 －15 0 －11 0 －200 0 －100 0 －200 0 －200 40 40 7 4
150 180 0 －25 0 －25 0 －18 0 －13 0 －200 0 －100 0 －250 0 －250 45 45 8 4
180 250 0 －30 0 －30 0 －20 0 －15 0 －250 0 －100 0 －250 0 －250 50 50 10 5
250 315 0 －35 0 －35 0 －25 0 －18 0 －250 0 －100 0 －300 0 －300 60 60 11 5
315 400 0 －40 0 －40 0 －28 - - 0 －250 0 －100 0 －300 - - 70 70 13 -


  • Table 9 JIS B 1514-2: Tolerances for thrust ball bearings

(1) Shaft race and central race

Unit : μm
Nominal bore diameter of shaft or central race
d or d2，mm		 Single plane mean bore diameter deviation
Δdmp or Δd2mp		 Single plane bore diameter variation
Vdsp or Vd2sp		 Race raceway to back face thickness variation
Si1） 2）
classes 0, 6, 5 class 4 classes 0, 6, 5 class 4 class 0 class 6 class 5 class 4
over up to upper lower upper lower max. max.
- 18 0 －8 0 －7 6 5 10 5 3 2
18 30 0 －10 0 －8 8 6 10 5 3 2
30 50 0 －12 0 －10 9 8 10 6 3 2
50 80 0 －15 0 －12 11 9 10 7 4 3
80 120 0 －20 0 －15 15 11 15 8 4 3
120 180 0 －25 0 －18 19 14 15 9 5 4
180 250 0 －30 0 －22 23 17 20 10 5 4
250 315 0 －35 0 －25 26 19 25 13 7 5
315 400 0 －40 0 －30 30 23 30 15 7 5
400 500 0 －45 0 －35 34 26 30 18 9 6
500 630 0 －50 0 －40 38 30 35 21 11 7
630 800 0 －75 0 －50 55 40 40 25 13 8
800 1000 0 －100 - - 75 - 45 30 15 -
1000 1250 0 －125 - - 95 - 50 35 18 -

(2) Housing race

Unit : μm
Nominal outside diameter
D
mm		 Single plane mean outside diameter deviation
ΔDmp		 Single plane outside diameter variation
VDsp		 Race raceway to back face thickness variation
Se1）2）
classes 0, 6, 5 class 4 classes 0, 6, 5 class 4 classes 0, 6, 5, 4
over up to upper lower upper lower max. max.
10 18 0 －11 0 －7 8 5 Shall conform to the tolerance Si on d or d2 of the same bearing
18 30 0 －13 0 －8 10 6
30 50 0 －16 0 －9 12 7
50 80 0 －19 0 －11 14 8
80 120 0 －22 0 －13 17 10
120 180 0 －25 0 －15 19 11
180 250 0 －30 0 －20 23 15
250 315 0 －35 0 －25 26 19
315 400 0 －40 0 －28 30 21
400 500 0 －45 0 －33 34 25
500 630 0 －50 0 －38 38 29
630 800 0 －75 0 －45 55 34
800 1000 0 －100 0 －60 75 45
1000 1250 0 －125 - - 95 -
1250 1600 0 －160 - - 120 -

(3) Bearing height and central race height

Unit : μm
Nominal bore diameter
d
mm		 Single direction Double direction
Deviation of the actual bearing height
ΔTs		 Deviation of the actual bearing height
ΔT1s1）		 Deviation of the actual bearing height
ΔT2s1）		 Deviation of a single central race height B
ΔBs1）
class 0 class 0 class 0 class 0
over up to upper lower upper lower upper lower upper lower
- 30 0 －75 ＋50 －150 0 －75 0 －50
30 50 0 －100 ＋75 －200 0 －100 0 －75
50 80 0 －125 ＋100 －250 0 －125 0 －100
80 120 0 －150 ＋125 －300 0 －150 0 －125
120 180 0 －175 ＋150 －350 0 －175 0 －150
180 250 0 －200 ＋175 －400 0 －200 0 －175
250 315 0 －225 ＋200 －450 0 －225 0 －200
315 400 0 －300 ＋250 －600 0 －300 0 －250


  • Table 10 JIS B 1514-2: Tolerances for spherical thrust roller bearings (class 0)

(1) Shaft race

Unit : μm
Nominal bore diameter
d
mm		 Single plane mean bore diameter deviation
ΔDmp		 Single plane bore diameter variation
Vdsp		 Refer.
perpendicularity of inner ring face with respect to the bore
Sd		 Actual bearing height deviation
ΔTs
over up to upper lower max. max. upper lower
50 80 0 －15 11 25 ＋150 －150
80 120 0 －20 15 25 ＋200 －200
120 180 0 －25 19 30 ＋250 －250
180 250 0 －30 23 30 ＋300 －300
250 315 0 －35 26 35 ＋350 －350
315 400 0 －40 30 40 ＋400 －400
400 500 0 －45 34 45 ＋450 －450

(2) Housing race

Unit : μm
Nominal outside diameter
D,mm		 Single plane mean outside diameter deviation
ΔDmp
over up to upper lower
120 180 0 －25
180 250 0 －30
250 315 0 －35
315 400 0 －40
400 500 0 －45
500 630 0 －50
630 800 0 －75
800 1000 0 －100


  • Table 11 JIS B 1514-1: Tolerances and permissible values for tapered bores of radial bearings (class 0)

(1) Basically tapered bore (taper 1:12)

Unit : μm
Nominal bore diameter
d,mm		 Δdmp Δd1mp－Δdmp Vdsp1）
over up to upper lower upper lower max.
- 10 ＋22 0 ＋15 0 9
10 18 ＋27 0 ＋18 0 11
18 30 ＋33 0 ＋21 0 13
30 50 ＋39 0 ＋25 0 16
50 80 ＋46 0 ＋30 0 19
80 120 ＋54 0 ＋35 0 22
120 180 ＋63 0 ＋40 0 40
180 250 ＋72 0 ＋46 0 46
250 315 ＋81 0 ＋52 0 52
315 400 ＋89 0 ＋57 0 57
400 500 ＋97 0 ＋63 0 63
500 630 ＋110 0 ＋70 0 70
630 800 ＋125 0 ＋80 0 -
800 1000 ＋140 0 ＋90 0 -
1000 1250 ＋165 0 ＋105 0 -
1250 1600 ＋195 0 ＋125 0 -

(2) Basically tapered bore (taper 1:30)

Unit : μm
Nominal bore diameter
d,mm		 Δdmp Δd1mp－Δdmp Vdsp1）
over up to upper lower upper lower max.
- 50 ＋15 0 ＋30 0 19
50 80 ＋15 0 ＋30 0 19
80 120 ＋20 0 ＋35 0 22
120 180 ＋25 0 ＋40 0 40
180 250 ＋30 0 ＋46 0 46
250 315 ＋35 0 ＋52 0 52
315 400 ＋40 0 ＋57 0 57
400 500 ＋45 0 ＋63 0 63
500 630 ＋50 0 ＋70 0 70


  • Table 12 Tolerances and permissible values for flanged radial ball bearings

(1) Tolerances on flange outside diameters

Unit : μm
Nominal outer ring flange outside diameter
D1
（mm）		 Deviation of single outer ring flange outside diameter,ΔD1s
Locating flange Non-locating flange
over up to upper lower upper lower
- 6 0 －36 ＋220 －36
6 10 0 －36 ＋220 －36
10 18 0 －43 ＋270 －43
18 30 0 －52 ＋330 －52
30 50 0 －62 ＋390 －62
50 80 0 －74 ＋460 －74

(2) Tolerances and permissible values on flange widths and permissible values of running accuracies relating to flanges

Unit : μm
Nominal outside diameter
D
（mm）		 Deviation of single outer ring flange width
ΔC1s 1)		 Variation of outer ring flange width
VC1s1)		 Perpendicularity of outer ring outside surface with respect to the flange back face
SD1		 Axial runout of assembled bearing outer ring flange back face
Sea1
Deep groove ball bearings and angular contact ball bearings Tapered roller bearings Deep groove ball bearings and angular contact ball bearings Tapered roller bearings
classes 0, 6, 5, 4, 2 classes 0, 6 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 class 5 class 4 class 2 class 4 class 2
over up to upper lower max. max. max. max. max.
- 2.5 Shall conform to the tolerance ΔBs on d of the same class and the bearing Shall conform to the tolerance VBs on d of the same class and the bearing 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
2.5 6 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
6 18 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 3 7 4
18 30 5 2.5 1.5 8 4 1.5 8 4 1.5 11 7 4 7 4
30 50 5 2.5 1.5 8 4 1.5 8 4 2 11 7 4 7 4
50 80 6 3 1.5 8 4 1.5 8 4 2.5 14 7 6 7 6

 

 

Conclusion

Understanding and effectively using a bearing tolerance chart is integral to successful bearing applications and optimal machinery performance. It’s not just about the right fit, but also about enhancing efficiency and extending bearing service life. At Lily-Bearing, we are committed to providing high-quality bearings with precise tolerances to meet your diverse application needs. Through accurate bearing selection using our comprehensive bearing tolerance chart, you can achieve significant improvements in machinery performance.

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Goodenough Lu

Goodenough Lu is a mechanical engineering major with over ten years of experience in bearing applications.

He possesses a comprehensive understanding of the operational characteristics of a wide range of mechanical products such as automobiles, motorcycles, various motors, electric tools, machine tools, and processing equipment.

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