d - 31,75 mm

D - 66,421 mm

T - 25,4 mm

B - 25,357 mm

C - 20,638 mm

ra1 max. - 3,3 mm

a - 9,1 mm

Da - 57 mm

db - 37,5 mm

ra max. - 0,8 mm

da - 38,5 mm

Db - 62 mm

Weight - 0,409 Kg

Basic dynamic load rating (C) - 69 kN

Basic static load rating (C0) - 81,5 kN

(Grease) Lubrication Speed - 5 700 r/min

(Oil) Lubrication Speed - 7 600 r/min

Calculation factor (e) - 0,27

Calculation factor (Y0) - 1,21

Calculation factor (Y2) - 2,19

• Model Number:4T-2580/2520
• Inner Diameter：31,75mm Outer Diameter：66,421mm Width：25,4mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:cleaners,plant determination,hydraulic cylinder buffer,office equipment,hanging clamp,tooth filling,plastic molding,steam Hydraulic control element,hydraulic connector,hydraulic pump,food packaging
• Similar models:NTN 4T-2580/2520 CX 2580/2523 NTN 4T-2580/2523S NSK 2580/2523 ISO 12580/12520 NACHI 2580/2523 ISO 2580/2520 Timken 2580/2520 Timken 2580/2523S Fersa 2580/2523
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-2580/2520 products，there is large inventory of NTN 4T-2580/2520 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-2580/2520 Which NTN 4T-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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  239/560 K	560	750	140	ISB	Spherical Roller Bearings
  3780/3720	50,8	93,264	30,162	CX	Tapered Roller Bearings
  6313ZZ	65,000	140,000	33,000	NTN-SNR	Deep Groove Ball Bearings
  7301	12	37	12	KOYO	Angular Contact Ball Bearings
  747-S/742D+X1S-747-S	64,96	155,575	101,6	Timken	Tapered Roller Bearings
  ESU 25 0855	755	955		SIGMA	Thrust Ball Bearings
  GE260XS	260	370	150	FBJ	Plain Bearings
  GEF35ES	35	55		AST	Plain Bearings
  HH926744/16	114,3	279,4	82,55	CX	Tapered Roller Bearings
  NJ 2319 E	95	200	67	NACHI	Cylindrical Roller Bearings
  NNU 4932 SPW33	160	220	60	ISB	Cylindrical Roller Bearings
  NU2224	120	215	58	ISO	Cylindrical Roller Bearings
  SB520-1	520	679,5	78	KOYO	Deep Groove Ball Bearings
  SL182917	85	120	22	ISO	Cylindrical Roller Bearings
  61944M	220	300	38	SKF	DEEP GROOVE BALL BEARINGS
  17BPPL	80	170	39	RIV	DEEP GROOVE BALL BEARINGS
  89416			18	CONSOLIDATED	THRUST ROLLER BEARINGS
  CRSBR-20	.5000	1.2500	.7500	CONSOLIDATED	ROLLER CAM FOLLOWERS
  EI-1458-2RS	.6250	.8750	.1562	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  TWC-613	.3750	.8125		CONSOLIDATED	THRUST NEEDLE BEARINGS