Home Resources Technical Data Information Angular Contact Ball Bearings Technical Information Double Row Angular Contact Ball Bearings Technical Information Bearing data

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.