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
ACB
Single row angular contact ball bearing, high-speed B design, 25° contact angle
ACDSingle row angular contact ball bearing, high-capacity design, 25° contact angle
ACE
Single row angular contact ball bearing, high-speed E design, 25° contact angle
ADAWide snap ring grooves in the outer ring; a two-piece inner ring held together by a retaining ring
ADB
Wide snap ring grooves in the outer ring; a two-piece inner ring held together by a retaining ring; modified internal design
AH
Bearing for air-handling applications
ASNeedle roller bearing with lubrication hole(s) in the outer ring, the number following indicates the number of holes
ASRNeedle roller bearing with annular groove and lubrication hole(s) in the outer ring, the number following indicates the number of holes
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 Tapered roller bearing with steep contact angle (steeper than 32210)
    • 1726209 B-2RS1/VP274 Y-bearing with two lubrication holes in the outer ring, one on each side, positioned 120° apart
  2. Adapter sleeves for oil injection: One or two oil supply ducts at the end opposite the threaded section
    Adapter sleeves for inch shafts: Whitworth thread
  3. Motor encoder unit with a glass fibre reinforced PA66 cage, ball centred
  4. Polymer ball bearing with components made of polyethyleneterephthalate (PET)
  5. KR cam follower with a hexagonal recess on both ends of the stud
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 stamped steel cage
BEM
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with machined steel cage
BEP
Single row angular contact ball bearing with a 40° contact angle and optimized internal design, with 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
BF
Needle roller with flat ends
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