Suffixes A - B

ADeviating or modified internal design with same boundary dimensions. As a rule the significance of the letter is bound to the particular bearing or bearing series.

Examples:
  • 4210 A Double row deep groove ball bearing without filling slots
  • 3320 A Double row angular contact ball bearing without filling slots
ACSingle row angular contact ball bearing with a 25° contact angle
ACDSingle row angular contact ball bearing, optimized internal design, 25° contact angle
ADAWide snap ring grooves in the outer ring; a two-piece inner ring held together by a retaining ring
ASNeedle roller bearing with lubrication hole(s) in the outer ring. A figure following the AS indicates the number of holes
ASRNeedle roller bearing with annular groove and lubrication hole(s) in the outer ring. A figure following the ASR indicates the number of holes
Axx(x)A combined with a two or three-figure number identifies variants of the standard design which cannot be identified by generally applicable suffixes
B
  1. Deviating or modified internal design with same boundary dimensions.

    As a rule the significance of the letter is bound to the particular bearing series

    Examples:
    • 7210 B Single row angular contact ball bearing with a 40° contact angle
    • 32210 B Taper roller bearing with steep contact angle (steeper than 32210)
  2. Taper roller bearing to ABMA standard with external flange on the outer ring
BE
Single row angular contact ball bearing with a 40° contact angle and optimized internal design
BEJ
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with ball centred pressed steel cage
BEM
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with machined brass cage
BEP
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with moulded cage of glass fibre reinforced polyamide 66
BEY
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with ball centred pressed brass cage
Bxx(x)
B combined with a two or three-figure number identifies variants of the standard design that cannot be identified by generally applicable suffixes

Example:
  • B20 Reduced width tolerance
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