d - 31.75 mm

D - 66,421 mm

T - 25,4 mm

B - 25,357 mm

C - 20,638 mm

a - 16 mm

r min. - 0,8 mm

r2 min. - 3,2 mm

da min. - 38,5 mm

Da - 57 mm

db min - 37,5 mm

ra max. - 0,8 mm

rb max. - 3,2 mm

Db - 62,5 mm

Weight - 0,404 Kg

Basic dynamic load rating (C) - 71,4 kN

Basic static load rating (C0) - 85,1 kN

(Grease) Lubrication Speed - 6000 r/min

(Oil) Lubrication Speed - 8000 r/min

Calculation factor (e) - 0,27

Calculation factor (Y0) - 1,21

Calculation factor (Y1) - 2,19

• Model Number:2580/2520
• Inner Diameter：31.75mm Outer Diameter：66,421mm Width：25,4mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:gas turbine,Medical equipment,Roller mill,small diesel generators,Grinding and polishing equipment,Industrial,storage and transportation equipment,packing equipment,medical equipment,hydraulic cylinder,packaging materials
• Similar models:AST 2580/2520 Timken 2580A/2520A ISO 12580/12520 Timken 2580/2530 NSK 12580/12520 ISO 2580/2523S Fersa 2580/2520 KOYO 12580/12520 NACHI 12580/12520 NTN 4T-2580/2520
• BEARING POWER International Trading Co.,Ltd. specialize in 2580/2520 products，there is large inventory of KOYO 2580/2520 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 2580/2520 Which KOYO 2580/2520 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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  4T-389/382A	55,575	96,838	21	NTN	Tapered Roller Bearings
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  6215-NR	75	130	25	NKE	Deep Groove Ball Bearings
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  7005 CDF	25	47	24	ISO	Angular Contact Ball Bearings
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  GEZ120ES-2RS	120,65	187,325	105,562	FBJ	Plain Bearings
  LM757049/LM757010	304,8	406,4	63,5	Timken	Tapered Roller Bearings
  LMEFM50	50	75		Samick	Linear Bearings
  M38545/M38510	33,338	66,675	20,638	Timken	Tapered Roller Bearings
  SL183020	100	150	37	INA	Cylindrical Roller Bearings
  UC205-16L2	25,4	52	34,1	KOYO	Deep Groove Ball Bearings
  NUP2309E	45	100	36	FAG	CYLINDRICAL ROLLER BEARINGS
  FJT-812	12		12	NSK	NEEDLE BEARING
  NBA13909	5.5000	6.2500	.3750	NSK	ANGULAR CONTACT BALL BEARINGS
  30210	50	90	20	STEYR	TAPERED ROLLER BEARINGS
  NUTR50	50	90	32	SKF	NEEDLE BEARINGS
  8503NR	17	40	.4724	CONSOLIDATED	DEEP GROOVE BALL BEARINGS