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90 1

BC 2

03 3

J 4

Bearing Interchange From AFBMA SKF PP N 3 0 X 6 3 18 ZZ N 5 6 7 8 9 10 1 5 6 4 2 3

SYMBOLS AFBMA SKF 1. Bore Diameter ÷ 5 XX18 90

2. Bearing Type * 6XXX BC XXX BL 7XXX CD BN 7XXX CC 7XXX ACD BA 7XXX B BY

DESCRIPTION AFBMA/5 = SKF Exc. 17 = XX03 15 = XX02 12 = XX01 10 = XX00

Conrad Maximum Capacity Angular Contact (15°) Angular Contact (12°) Angular Contact (25°) Angular Contact (35°-40°)

3. Dimension Series (Duty Rating) X0XX Extra Light 00 X2XX Light 02 X3XX Medium 03 X4XX Heavy 04

C3 (8), 7

10

HT51 9

SYMBOLS AFBMA SKF DESCRIPTION 6. Snap Ring Groove N Groove without Ring N NB Groove without Ring A On same side as Seal/Shield NR Groove with Ring G NBR Groove with Ring on C Same side as Seal/Shield 7. Radial Clearance/Preload Normal Clearance 0 C1 Tighter Than C2 1 C2 Tighter Than Normal 2 C3 Looser Than Normal 3 C4 Looser Than C3 4 C5 Looser Than C4 5 7 8 9

GA GB GC

Light Preload Medium Preload Heavy Preload

8. Tolerance Class 4. Cage Type Normal ABEC1, ISO 0 Any Type Acceptable X P6 P7 6 J Pressed Steel J P5 ABEC 3, ISO P6 5 Y Pressed Brass Y, K P4 ABEC 5, ISO P5 4 M Machined Brass M P9A ABEC 7, ISO P4 2 Non Metallic T ABEC 9 5. Seals/Shields or Duplex Mounting Character Separator X 9. Lubrication Z (PP - 2Z, Two Shields) P Any Slush or Grease X RSI (EE 2RS1, Two Seals) E Refer to Manufacturer A Removable Impervious Seal D DB Duplex Back-to-Back RR 10. Special Features DF Duplex Face-to-Face UU DT Duplex Tandem TT (Refer to SKF Engineering) Shield Removable A *First letter of the AFBMA # (Bearing Type) can also be an: R for Cylindrical Roller, S for Self-aligning Spherical Roller, or T for Thrust Ball or Roller.