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What do the brand bearings suffixes and prefixes mean respectively

What do the brand bearing suffixes and prefixes mean respectively?

Brand bearings NSK bearing suffix code meanings:

A – Bearings with internal design different from the standard.

A – Angular contact ball bearings with a contact angle of 30 degrees.

A5–Angular contact ball bearing with a contact angle of 25 degrees

Z, ZS–One side with steel plate dust cover.

ZZ, ZZS–Both sides with steel plate dust cover.

D, DU–One side with contact rubber seal.

C1–Radial clearance of radial bearing, smaller than C2 clearance.

C2–Radial clearance of radial bearing, smaller than standard clearance.

CN (omitted) – radial standard clearance of radial bearing.

C3–Radial clearance of radial bearing, larger than the standard clearance.

C4 – to the heart bearing radial clearance, than C3 clearance.

Brand bearings NTN bearing suffix meaning:

B–40 ° contact angle; A–25 ° contact angle; C–15 ° contact angle; J– hit the pressure steel cage; LI – machine-cut copper alloy cage; DB – back to back configuration; DF – face to face configuration; CS- -radial clearance greater than the standard clearance.

Brand bearings TIMKEN bearing suffix meaning:

AB outer ring with flange outer ring, and the basic model is not interchangeable

AC inner ring Different inner diameter and rounded outer diameter, different internal geometry

Outer ring Different outer diameter / width / or fillet radius from the basic type

AD Outer ring Double outer ring, not interchangeable with basic model

CR inner/outer ring bearing series with outer raceway flange

CX Inner ring Dimensions different from the basic type, not interchangeable

D inner/outer ring double inner ring or double outer ring, and the basic model is not interchangeable

Brand bearings INA bearing suffix meaning:

P- bearing with sealing ring on one side

PP- bearing with sealing ring on both sides

RS- bearing with sealing ring on one side

2RS- bearing with sealing ring on both sides

P6- Bearings with high dimensional tolerances and geometrical accuracy

P5- Bearings with high dimensional and geometrical tolerances

P4- Bearings with high dimensional tolerances and geometrical accuracy

Brand bearings KOYO bearing front code meaning:

4CRI- four-row cylindrical roller bearing inner ring, for example: 4CRI4560F

4CRO- four-row cylindrical roller bearing outer ring, example: 4CRO660AF

E- magnetic motor ball bearing, outside diameter for positive tolerance, example: E10

EN- magnetic motor ball bearing, outside diameter for negative tolerance, example: EN10

Brand bearings KOYO bearing suffix meaning:

A- angular contact bearing, contact angle of 30 degrees (not marked), example: 7210

B- angular contact bearing, contact angle 40 degrees, example: 7210B

C- angular contact bearing, contact angle 15 degrees, example: 7210C

RSC- RS type seal made of silicone rubber, example: 6210RSC

RSD- RS type seal made of polypropylene rubber, example: 6210RSD

RSE- Single-sided, flange-guided contact synthetic rubber seal, example: 6206RSE

K- bearing with tapered hole, taper 1:12, example: 1210K

K30- bearing with tapered bore, tapered to 1:30, example: 23026K30

N- outer ring with stop groove bearing, example: 6206N

C- with lock hole tapered roller bearings

NR- outer ring with stop ring bearing, example: 6210NR

Y- smaller than the standard chamfer size of non-standard chamfer, example: 30206Y

S- tapered roller bearings, non-standard chamfer (oblique chamfer)

SG- tapered roller bearing with spiral groove inside diameter

CJ CC,CJ J C,CD Spherical roller bearings with pressed steel cage

YM M2 M CAM,M Single-piece roller-guided machined bronze cage

YMB MC MB – Machined bronze cage with single-piece inner ring guidance

C02 C02 T52BE P53 Inner ring with P5 running accuracy. W4 (SKF does not include W4)

C02 C3 C023 C3.T52BE – Inner ring with P5 running accuracy. Radial play of C3

C02 C4 C024 C4.T52BE – Inner ring with P5 running accuracy. Radial clearance of C4

C04 C04 T52BN P52 – outer ring with P5 running accuracy. W4 (SKF does not include W4)

C04 C3 C043 C3.T52BN – Outer ring with P5 running accuracy. Radial clearance of C3

C04 C4 C044 C4.T52BN – outer ring with P5 running accuracy. Radial clearance of C4

C08 C08 T52BW C02 P55 with P5 running accuracy (C02 and C04)

C08 C3 C083 C3.T52BW – with P5 running accuracy (C02 and C04). Radial play of C3

C08 C4 C084 C4.T52BW – with P5 running accuracy (C02 and C04). Radial clearance for C4

C6 C6 – – special clearance, no details

K K K K K Tapered bore (taper ratio 1:12, for series 22, 23, 30, 31, 31, 33, 39)

K K30 K30 – tapered bore (taper ratio 1:30, for 40,41,42 series)

W4 W4 J26A – high and low points marked on the inner and outer rings

W6R – – – Special surface on roller surface. Resistant to insufficient lubrication and abrasive wear loss

W8 – – Timken? TDCTM coating on inner and outer ring and roller surfaces

W20 W20 SY E3 outer ring with standard lubrication holes

W22 W22 70085 – Special outer ring OD tight tolerance

W25 W73 – – Outer ring with countersunk lube holes

Contact us:

WanYu Bearing Co., Ltd. is a bearing factory with more than 100,000 kinds of bearings, if you have a bearing problem you want to consult please contact us in time, we will provide you with fast service!

Tel: +86 15969613555
Email:wanyu@sdwybearing.com
www.wanyubearings.com