Double Row Angular Contact Ball Bearings Bearing data

Dimension standards Boundary dimensions: ISO 15
Except for:
  • bearing 3200 A: width = 14 mm instead of 14,3 mm
  • drawing number bearings: dimensions not standardized
  • snap rings and grooves: ISO 464 (table 1)
Tolerances Normal

Except for:
  • Lily Explorer bearigs and 33 DNRCBM series:
    • P6
  • drawing number bearings:
    • outer ring to Normal
    • inner ring to P6 or P5
    • geometrical tolerance at least to class P6
Values: ISO 492 (table 2, table 3,table 4)
Contact angle
  • 32 A and 33 A series: 30°
  • 33 D series: 45°
  • 33 DNRCBM series: 40°
Internal clearance Normal
Check availability of C2, C3 or C4 clearance classes

Values: table 5, table 6

Values are valid for unmounted bearings under zero measuring load.
Permissible misalignment ≈ 2 minutes of arc

Misalignment increases bearing noise and reduces bearing service life, and when it exceeds the guideline values, these effects become particularly noticeable.
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