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Bearing code of KOYO company

Pub Time : 2018-11-12 17:44:54

The bearing code of KOYO company is made up of basic code, prefix code and post code. The basic code indicates the bearing series and size. The prefix code indicates the bearing type and the bearing parts. The code is placed before the basic code number.

Technical requirements for bearing structure, cage, seal and dust-proof, tolerance, oil gap, heat treatment, etc., are located after the basic code.

1. front code C- cylindrical roller bearing accessories (or bearing itself), for example: C00210 45C- pairs of tapered roller bearings, face to face installation, for example: 45C30210 46C- pairs installed tapered roller bearings, back to back

For example, 46C30210 4CRI- four row cylindrical roller bearing inner ring, for example: 4CRI4560F 4CRO- four column cylindrical roller bearing outer ring, case: 4CRO660AF E- magneto ball bearing, outer diameter is positive tolerance.

E10 EN- magneto ball bearings, outer diameter of the negative tolerance, for example: EN10 IR- needle roller bearing inner ring (British), for example: IR1212 IRA- needle roller bearing inner ring, wider than the IR series (British system), case: IRA20 IRM- needle shaft

Inner ring, case: IRM710 M- maximum load capacity ball bearing, case: M6311 OR- needle roller bearing, outer ring only, case: OR10876 F- deep groove ball bearing flange, case: F603 TR- size non-standard single row

Tapered roller bearings, for example: TR060702 W- wide, deep groove ball bearings, case: W602ZZX 2.

Postcode

(1) internal structure A- angular contact bearing, contact angle 30 degrees (not marked), example: 7210 B- angular contact bearing, contact angle 40 degrees, case: 7210B C- angular contact bearing, contact angle 15 degrees, case: 7210C C- cone rolling

Sub bearings, contact angle 20 degrees, for example: 30303C D- tapered roller bearings, contact angle 28 degrees 30 points, for example: 30305D G- compression axial oil gap aligning and tapered roller bearing J- tapered roller bearings, in line with ISO grouping.

30206J N- tapered roller bearings, special noise requirements, examples: 30208N R- increase load capacity of the center, cone and cylindrical roller bearings, case: 22228R

(2) seal and dust-proof OR- ball bearing with O type sealing ring, for example: 6201+OR RK- single side, double lip contact type synthetic rubber seal, for example: 6210RK 2RK- double sided, double lip contact type synthetic rubber seal, for example:

6210.2RK RS- single side, contact type synthetic rubber seal, for example: 6210RS 2RS- double faced, contact type synthetic rubber seal, for example: 6210-2RS RSA- single side, metal shield contact rubber seal.

88107RSA 2RSA- double sided, with metal cover contact rubber seal, for example: 88107-2RSA RSB- unilateral, with contact metal seal of rubber seal, for example: 88107RSB 2RSB- double sided, with a card.

The contact type synthetic rubber seal of metal cover, for example: 88107-2RSB RSC- silicone rubber for RS seal, for example: 6210RSC RSD- polypropylene rubber for RS type sealing, for example: 6210RSD RSE- single side, edge guide contact.

Synthetic rubber seals, for example: 6206RSE 2RSE- double sided, edge guide contact type synthetic rubber seal, for example: 6206-2RSE RSF- RS fluorinated rubber seal, for example: 6210RSF RU- single side, non-contact synthetic rubber.

Rubber seal, for example: 6205RU 2RU- double-sided, non-contact synthetic rubber seal, for example: 6205-2RU TR- unilateral, three lip metal cover rubber synthetic seal, for example: 4508B-TR 2TR- double sided, three lip metal shield synthetic rubber.

Seal, case: 4508B-2TR U- side with contact type synthetic rubber sealed needle roller bearings. Case: NA4916U UU- two with contact type synthetic rubber sealed needle roller bearings, case: NA4916UU Z- single side steel dust-proof.

Cover, case: 6205.Z ZZ- double sided steel dust cover, for example: 6205ZZ ZL- single face, L type inner diameter steel dust cover. Case: 6207ZL ZX- single side, steel cover made by stop ring. Case: 6205ZX ZXL-

The clamping ring is pressed on the L type inner diameter single face steel dust cover, for example: 6203ZXL ZZL- steel dust-proof cover, double faced, L type inner diameter, for example: 6203ZZL ZZX- steel dust-proof cover, double-sided, pressed by the stop ring. Case: 605ZZX

ZZXL- steel dust-proof cover, double-sided, pressed by the stop ring, L type inner diameter, case: 6303ZZXL

(3) the ring shape a- is larger than the standard chamfering non standard chamfer, for example: 6205a B- tapered roller bearing, outer ring flange, case: 30210B BI- double half inner ring ball bearing, case: 6215BI BO- double half outer ring ball bearing,

Example: 6215BO D- tapered roller bearing, double outer ring or double inner ring (British system), for example: 594/592D K- with tapered bore bearings, taper is 1:12, for example: 1210K K30- with tapered bore bearings, taper is 1:30, for example:

23026K30 N- outer ring with groove bearing. Case: 6206N C- tapered roller bearing with keyhole NR- outer ring with stop ring bearing. Case: 6210NR Y- is smaller than standard chamfering dimension non-standard chamfer. Case: 30206Y

S- tapered roller bearings, non-standard chamfering (chamfered) SG- tapered roller bearings with spiral grooves in inner diameter T- tapered or tapered outer diameter (British) tapered roller bearings TD- double row, tapered bore or tapered outer diameter (British) tapered roller bearings

Sub bearing W- double inner ring and tapered roller bearing with end face groove. Case: 47T694625WH W- cylindrical roller bearing with lubricant groove and hole in outer ring. Case: NU316W Wi- cylindrical roller bearing (1- outer ring lubricated)

Oil hole; 2- inner ring has lubricating oil hole and slot; 3- inner ring has lubricating oil hole; 4- inner and outer ring has lubricating oil hole; 5- inner and outer ring has lubricating oil hole and slot; 6- outer ring has lubricating oil hole and slot, inner ring has lubricating oil hole; 10- outer ring belt.

Keyhole; 11- outer ring with lubricating hole and lock hole; 13- outer ring with keyhole, inner ring with lubricating oil hole; 14- inner ring with lubricating oil hole, outer ring with lubricating hole and keyhole; I=1,2,...). Wj- self-aligning roller bearing (20- outer ring)

There are three lubricating holes.


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