Product Categories / Mounted Bearings / Pillow Block Bearing / KHPW201

KHPW201

Name: KHPW201 Pillow Block Bearing
Brand: LILY

$6.65 /Each

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Overview
Part Number	KHPW201
Brand: LILY	Interchangeable With: AMI
Bearing Part Number	KH201
Housing Part Number	PW203
Characteristics
System of Measurement	Metric
Bearing Type	Ball Bearing
Bearing Seal Type	Double Sealed
Inner Ring Type	Narrow Inner Ring
Mounted Type	Pillow Block Bearing
Shaft Mount Type	Eccentric Collar Locking
Product Series	KHPW200
Lubrication Fitting Tap	1/4-28 UNF
Dimensions
Bore Dia	12 mm
Bore Dia Tolerance	-0.0005" to 0"
Hole Width	11 mm
Hole Length	16 mm
Overall Height	55 mm
Pillow Height	7 mm
Center Height	30.2 mm
Whole Length	114 mm
Hole Ctr-to-Ctr Min	81 mm
Hole Ctr-to-Ctr Max	94 mm
Width of Inner Ring	25 mm
Width with Eccentric Collar	28.6 mm
Mounting Bolt Size	M10
Material
Bearings Material	AISI 52100 Steel
Housing Material	Malleable Iron
Performance
Temperature Range	-30° to 110 °C
Properties
RoHS	Compliant
REACH	Compliant
Lubrication	Required
Weight	0.31 kg

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What does KHPW201 mean?

KHPW201 is an AMI metric malleable iron pillow block unit with a narrow inner ring insert and eccentric collar locking, for a 12 mm shaft. The part number breaks down into 4 segments:

KH: Narrow inner ring ball bearing insert, eccentric collar locking, spherical outer ring. Insert part number is KH201

PW: Housing style: malleable iron pillow block. Housing part number is PW203

2: 200 series (normal duty)

01: Bore code: 01 = 12 mm

Note: For metric mounted bearings, the bore is usually the bore code × 5 mm. Codes 00, 01, 02 and 03 are the exceptions: 10, 12, 15 and 17 mm.

Frequently asked questions

What does KHPW201 mean?

KHPW201 is an AMI metric malleable iron pillow block unit with a narrow inner ring insert and eccentric collar locking, for a 12 mm shaft. KH = narrow inner ring ball bearing insert, eccentric collar locking, spherical outer ring. Insert part number is KH201, PW = housing style: malleable iron pillow block. Housing part number is PW203, 2 = 200 series (normal duty), 01 = bore code: 01 = 12 mm.

What is the bore size of KHPW201?

The bore of KHPW201 is 12 mm.

The housing of pillow block bearing, crafted from iron, is engineered to withstand heavy-load and high-vibration conditions with the structural rigidity and dimensional stability needed to keep the overall mounted bearing assembly performing reliably over the long term.

Shaft retention is achieved through eccentric collar locking in this pillow block bearing unit, which secures the shaft reliably against moderate loads and intermittent vibration — provided the collar is rotated firmly in the direction of shaft rotation and the locking screw is fully tightened — without damaging the shaft surface.

Two M10 bolts fasten the mounted bearing unit to the mounting surface, providing a secure and stable foundation that suits both new installations and direct replacement applications. M10 represents a mid-range metric fastener, widely used across standard industrial pillow blocks where moderate radial loads and everyday operating conditions are the norm.

Why choose Iron for the bearing housing?

Because this pillow block bearing is specifically designed for heavy-load and high-vibration conditions, cast iron delivers superior rigidity and dimensional stability where lighter or polymer housings are prone to deformation under load, making it a purpose-built choice for this application rather than a generic substitute.

Why does this bearing use Eccentric Collar Locking to secure the shaft?

Eccentric collar locking works by rotating an offset collar in the direction of shaft rotation until it clamps firmly around the shaft, which makes it well suited to applications where the shaft surface must remain undamaged and load distribution needs to be more even. Its main advantage over other shaft locking methods is a broader contact area that reduces shaft stress, which matters most when the application involves intermittent loads, frequent starts and stops, or softer shaft materials.

How does the M10 affect installation and compatibility?

The bolt size directly determines whether the pillow block bearing can be mounted onto an existing frame or structure without modification. An M10 bolt corresponds to a mid-range hole pattern widely used in standard metric pillow blocks across a broad range of industrial applications, so when replacing an existing unit, confirming this dimension ensures a drop-in fit. Mismatched bolt sizes may require redrilling the mounting surface or sourcing an adapter plate, adding time and cost to the installation.