d - 20,638 mm

D - 49,225 mm

T - 19,845 mm

B - 19,845 mm

C - 15,875 mm

ra1 max. - 1,5 mm

a - 7,1 mm

Da - 42,5 mm

db - 26 mm

ra max. - 1,5 mm

da - 28,5 mm

Db - 45,5 mm

Weight - 0,182 Kg

Basic dynamic load rating (C) - 37,5 kN

Basic static load rating (C0) - 39 kN

(Grease) Lubrication Speed - 8 200 r/min

(Oil) Lubrication Speed - 11 000 r/min

Calculation factor (e) - 0,32

Calculation factor (Y0) - 1,02

Calculation factor (Y2) - 1,86

• Model Number:4T-12580/12520
• Inner Diameter：20,638mm Outer Diameter：49,225mm Width：19,845mm
• Type：Tapered Roller Bearings
• Update date：2025-12-21
• Application:Infrared Technology,non-motor vehicle Electric car,test laboratory equipment and accessories,Antenna Industry,Textile Industry Accessories and Accessories,shoe-making machinery,sewage pump,Microwave Equipment,Blood coagulation reagent,Small air generators,Cylinder Pneumatic Treatment Element
• Similar models:NSK 12580/12520 NTN 4T-12580/12520 NACHI 12580/12520 Timken 12580/12520 CX 12580/12520 ISO 12580/12520 KOYO 12580/12520 FBJ 12580/12520
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-12580/12520 products，there is large inventory of NTN 4T-12580/12520 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-12580/12520 Which NTN 4T-12580/12520 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  1220	100	180	34	ISB	Self-Aligning Ball Bearings
  15125/15250		63.500	20.638	NACHI	Tapered Roller Bearings
  21307	35	80	21	ISB	Spherical Roller Bearings
  222SM320-MA	320	620	165	FAG	Spherical Roller Bearings
  231/710 KCW33+H31/710	710	1150	345	CX	Spherical Roller Bearings
  31328 A	140	300	77	CX	Tapered Roller Bearings
  43BWD06BCA133	43	82	45	NSK	Angular Contact Ball Bearings
  6060	300	460	74	CX	Deep Groove Ball Bearings
  BL 209 Z	45	85	19	NSK	Deep Groove Ball Bearings
  F61901-2RS	12	24	6	ZEN	Deep Groove Ball Bearings
  GE 260 ES-2RS	260	370	150	CX	Plain Bearings
  JLM508748/JLM508710	60	95	24	KBC	Tapered Roller Bearings
  NA6906	30	47	30	NSK	Needle Roller Bearings
  R1167D2	55,000	106,000	92,000	NTN	Cylindrical Roller Bearings
  UCP319	95		103	KOYO	Bearing Units
  XTGB42001.P	30	120	69	SNR	Angular Contact Ball Bearings
  51126				FAG	THRUST BALL BEARINGS
  29280	400	540		SKF	SPHERICAL ROLLER THRUST BEARINGS
  SJ7275			1.2500	RBC	NEEDLE BEARINGS
  1224	120	215	42	SKF	SELF