KOYO company bearing code small solution

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KOYO company bearing code small solution

Source: China Bearing Network Time: 2013-07-24
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KOYO company's bearing code is composed of the original code; front code and post code. The root code indicates the bearing series and scale; the front code indicates the bearing type and bearing parts; before the root code; the rear code indicates the bearing layout; Shelf; seal and dustproof; public service; oil gap; heat treatment and other skills needs; after the root code. Front code C- cylindrical roller bearing attachment (or bearing itself); Example: C00210 45C- Paired tapered roller bearing; face-to-face device; Example: 45C30210 46C- Paired device tapered roller bearing; Back-to-back device; 46C30210 4CRI- four-row cylindrical roller bearing inner ring; example: 4CRI4560F 4CRO- four-row cylindrical roller bearing outer ring; example: 4CRO660AF E- magnetic motor ball bearing; outer diameter is positive public service; example: E10 EN- magneto Ball bearing; outer diameter is negative public service; Example: EN10 IR- needle bearing inner ring (inch); Example: IR1212 IRA- needle bearing inner ring; wider than IR series (inch); Example: IRA20 IRM- needle roller Bearing inner ring; Example: IRM710 M- Maximum load capacity ball bearing; Example: M6311 OR-needle bearing; as long as the outer ring; Example: OR10876 F- deep groove ball bearing with flange; Example: F603 TR- scale non-standard Single row tapered roller bearings; examples: TR060702 W- wide; deep groove ball bearings; example: W602ZZX 2. Post code. 1) Internal layout A-angle touch bearing; touch angle 30 degrees (not marked); example: 7210 B-angle touch bearing; touch angle 40 degrees; example: 7210B C-angle touch bearing; touch angle 15 Degree; example: 7210C C- tapered roller bearing; touch angle 20 degrees; example: 30303C D- tapered roller bearing; touch angle 28 degrees 30 minutes; Example: 30305D G- tightening axial oil gap alignment and tapered roller Sub-bearing J- tapered roller bearing; conforms to ISO group; Example: 30206J N- Tapered roller bearing; special noise demand; Example: 30208N R- Increasing the load capacity; Conical and cylindrical roller bearings; Example: 22228R .2) Sealed and dust-proof OR-ball bearings with O-rings; Example: 6201+OR RK- single-sided; double-touch synthetic rubber seal; example: 6210RK 2RK- double-sided; double-touch synthetic rubber seal Example: 6210. 2RK RS-one-sided; touch-type synthetic rubber seal; example: 6210RS 2RS- double-sided; touch-type synthetic rubber seal; example: 6210-2RS RSA- single-sided; with metal cover touch-type synthetic rubber seal; Example: 88107RSA 2RSA- double sided; with metal cover touch synthesis Glue seal; Example: 88107-2RSA RSB-Single side; Touch type synthetic rubber seal with Gaga metal cover; Example: 88107RSB 2RSB- Double side; Touch type synthetic rubber seal with Gaga metal cover; Example: 88107-2RSB RSC-silicone rubber RS ​​seal; Example: 6210RSC RSD- polypropylene rubber RS ​​seal; Example: 6210RSD RSE- single side; rib guide touch synthetic rubber seal; Example: 6206RSE 2RSE- double sided; Touch-type synthetic rubber seal; Example: 6206-2RSE RSF-RS type fluorinated rubber seal; Example: 6210RSF RU-one-sided; non-touch synthetic rubber seal; Example: 6205RU 2RU- double-sided; non-touch synthetic rubber seal; Example: 6205-2RU TR- single-sided; three-lip metal cover synthetic rubber seal; example: 4508B-TR 2TR- double-sided; three-lip metal cover synthetic rubber seal; example: 4508B-2TR U- one side with touch synthetic rubber seal Needle roller bearing; Example: NA4916U UU- Two-sided needle bearing with touch-type synthetic rubber seal; Example: NA4916UU Z- single-sided steel dust cover; Example: 6205. Z ZZ- double-sided steel dust cover; for example: 6205ZZ ZL- single side; L-shaped inner diameter steel dust cover; for example: 6207ZL ZX- single side; steel dust cover pressed by snap ring; Example: 6205ZX ZXL- L-shaped inner diameter single-sided steel dust cover is pressed by the snap ring; Example: 6203ZXL ZZL- steel dust cover; double-sided; L-shaped inner diameter; Example: 6203ZZL ZZX- steel dust cover ; double-sided; pressed by the snap ring; example: 605ZZX ZZXL- steel dust cover; double-sided; pressed by the retaining ring; L-shaped inner diameter; example: 6303ZZXL .3) ferrule shape a- larger than the specification Non-standard chamfer of the corner; Example: 6205a B- tapered roller bearing; outer ring with flange; example: 30210B BI- double semi-inner ring ball bearing; example: 6215BI BO- double half outer ring ball bearing; example: 6215BO D- Tapered roller bearing; double outer ring or double inner ring (inch); Example: 594/592D K- with tapered bearing; taper 1:12; Example: 1210K K30- with tapered bearing; taper 1: 30; Example: 23026K30 N- outer ring with snap groove bearing; Example: 6206N C- Tapered roller bearing with locking hole NR- outer ring with snap ring bearing; Example: 6210NR Y- less than gauge Non-standard chamfer on chamfer scale; Example: 30206Y S- Tapered roller bearing; Non-standard chamfer (inclination) SG- Tapered roller bearing with spiral groove T- taper or tapered outer diameter (Inch) ) Tapered roller bearing TD- double row, tapered or tapered outer diameter (inch) tapered roller bearing W- double inner ring, end slotted tapered roller bearing; example: 47T694625WH W- outer ring with smooth oil groove Cylindrical roller bearings with slots and holes; Example: NU316W Wi- Cylindrical Roller Bearings (1-outer ring with smooth oil holes, 2-inner ring with smooth oil holes and grooves, 3-inner ring with smooth oil holes, 4- The inner and outer rings have smooth oil holes, the 5-inner and outer rings have smooth oil holes and grooves, the 6-outer ring has smooth oil holes and grooves; the inner ring has smooth oil holes, and the 10-outer ring has keyholes, 11- Outer ring with smooth oil hole and lock hole, 13-outer ring with lock hole; inner ring with smooth oil hole, 14- inner ring with smooth oil hole; outer ring with smooth oil hole and lock hole, I=1, 2; ...). Wj- Spherical Roller Bearing (20-outer ring with three smooth oil holes (equal), 20A-outer ring with four smooth oil holes (equal), 20C-outer ring with six smooth oil holes (equal), 20T-outer ring Smooth oil hole (equal), 2N-outer ring with three smooth oil holes (equal) and one keyhole, 2NA-outer ring with four smooth oil holes (equal) and one keyhole, 2NB-outer ring There are five smooth oil holes and one keyhole (equal), the 2NC-outer ring has six smooth oil holes (equal) and one keyhole, and the 2ND-outer ring has seven smooth oil holes and one keyhole (eight Hole halved), 22-outer diameter non-standard (±0.005mm), 26-inner ring with smooth oil hole, 33-outer ring with three smooth oil holes (equal) and smooth oil groove, 33A-outer ring There are four smooth oil holes (equal) and smooth oil grooves, the 33C-outer ring has six smooth oil holes (equal) and smooth oil grooves, and the 33T-outer ring has eight smooth oil holes (equal) and smooth oil grooves. 3N-outer ring has three smooth oil holes (equal) and smooth oil groove; one lock hole, 3NA-outer ring has four smooth oil holes (equal) and smooth oil groove; one lock hole, 3NB-outer ring has five Smooth oil hole and one keyhole (six holes aliquot) and smooth oil groove, 3NC-outer ring with six smooth oil holes (equal), smooth oil groove and one keyhole, 3ND-outer ring with seven smooth oil holes; Locking holes (eight holes aliquot) and smooth oil grooves, 502- with W22 and W33 characteristics, 513- with W26 and W33 characteristics, 518- inner and outer rings with smooth oil holes and grooves, j = 20, 20A ...). .4) Data E- ferrule data code; SAE8620; Example: 30305E F- ferrule data code; SAE4320 or SAE4322S; Example: 30325E H- ferrule data code; SAE9310 M- ferrule data code; JIS SCM4 N- ferrule data code; JIS SNCM9 SC- ferrule data code; JIS S15CK ST- ferrule data code; stainless steel S5-ferrule data code; JIS S55C; S50C or S45C Y- ferrule data code; JIS SNCM25 .5 Combination A-in; outer ring plus pair of double-bearing rings; no barrier oil hole or groove; any example: 7210DB/10A B- in-band; pair of double-bearing outer ring; Only the inner barrier ring has smooth oil holes or grooves; for example: 7210DB/10B C-in-band; paired double-joint bearings with outer barrier ring; inner and outer barrier rings have smooth oil holes or slots; for example: 7210DB/10C DB - Paired double-jointed angular contact ball bearings; back-to-back devices; Example: 7210DB DBD- triple-angle contact ball bearings; Combination of backrest and tandem device; Example: 7210DBD DF-paired double-joint angular contact ball bearing; face-to-face device; example: 7210DF DFD-triple angle touch ball bearing; face-to-face tandem device combination; example: 7210DFD DT-paired double joint Touch ball bearing; series device; Example: 7210DT DTD- triplet contact ball bearing; series device; example: 7210DTD P-pair double cone angle touch roller bearing; barrier outer ring; example: 46C30210/P10 U1, U2- Paired double-jointed angular contact ball bearings; inner ring extended; example: 7212DBU1 .6) Clearance C1- radial clearance less than C2 C2- radial clearance less than gauge clearance CN- radial gauge clearance C3- diameter The clearance is greater than the gauge clearance C4- The radial clearance is greater than C3 C5- Radial clearance is greater than C4 CM- Motor bearing; Special radial clearance (cylindrical roller bearings are not exchanged) CS-Special radial clearance CT- Motor cylindrical roller bearings (not exchangeable); special radial clearance CX- special radial clearance NA- cylindrical roller bearings (not exchangeable) radial clearance. 7) cage and its information FC- carbon steel entity retention FG- nylon die-cast cage FM-ball casting Solid cage FP-pillar welded carbon steel solid cage FR- high stress brass solid cage FS- pillar solid cage FT- phenolic resin solid cage FY- high stress brass solid cage GP- silver plated IP- Silver-plated, additional rhodium-plated cage LC- Non-riveted carbon steel solid cage LP- Galvanized cage LR- Riveted high-stress brass solid cage MM- Nickel-copper alloy cage MS- Pillar High-stress bronze solid cage PA-solid cage; outer ring centering; ball bearing; example: 6205PA PB- solid cage; inner ring centering; ball bearing; example: 6205PB PD- solid cage; steel ball centering ; ball bearing; example: 6205PD Q1- solid cage; outer ring centering; roller bearing Q2- solid cage; inner ring centering; roller bearing R- thickness greater than the standard type stamping cage RP-phosphorization Disposal cage RT- Special treatment ball bearing cage SM- Ferrosilicon bronze solid cage SN- Tinned cage TY- High stress brass T-type solid cage YP- Copper alloy belt stamping cage YS- Stainless steel stamping retention YY- copper alloy nail stamping cage V- Full ball or full roller; Example: N2217V VH- Cylindrical roller bearing; roller block spacers; Example: NU309VH .8) Public service level omitted - Public service level conforms to JIS rule specification level P2- The level of public service is in accordance with Level 2 of the JIS Rules; for example: 6205-P2 P4- The level of public service is in accordance with Level 4 of the JIS Rules; Example: 6205-P4 P5 - Level 5 of the Public Service is in accordance with Level 5 of the JIS Rules; Example: 6205-P5 P6 - The public service level meets the 6th level of the JIS rules; for example: 6205-P6 P6X- The 6X level of the public service level conforms to the JIS rules. The public service level is super precision; for example: 6210-SP UP- the public service level is special precision. Level; Example: 30303UP
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