d - 28,575 mm

D - 69,85 mm

T - 23,812 mm

B - 25,357 mm

C - 19,05 mm

ra1 max. - 1,3 mm

a - 9,1 mm

Da - 61 mm

db - 35 mm

ra max. - 2,3 mm

da - 39 mm

Db - 64 mm

Weight - 0,483 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-2578/2523
• Inner Diameter：28,575mm Outer Diameter：69,85mm Width：23,812mm
• Type：Tapered Roller Bearings
• Update date：2025-12-12
• Application:set bacteria instrument,pneumatic Pump,floor industry,Forklift industry,Animal Tracking,switch,lathe,Grinding and polishing equipment,sleep monitoring,Beauty and Body,directional control valve
• Similar models:Timken 2578/2523 FBJ 2578/2523 KOYO 2578/2520 ISO 2578/2523 Timken 2578/2523-B Timken 2578/2524YD Timken 2578/2523-S CX 2578/2523 NTN 4T-2578/2523
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-2578/2523 products，there is large inventory of NTN 4T-2578/2523 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-2578/2523 Which NTN 4T-2578/2523 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
  22322 EKW33+H2322	100	240	80	ISB	Spherical Roller Bearings
  4T-30310D	50	110	29,25	NTN	Tapered Roller Bearings
  B7212-C-2RSD-T-P4S	60	110	22	FAG	Angular Contact Ball Bearings
  89436	180	360		CX	Thrust Roller Bearings
  H244849D/H244810+H244810EA	219,075	358,775	196,85	Timken	Tapered Roller Bearings
  HUB083-64	30	67		NTN	Angular Contact Ball Bearings
  HCB7036-C-T-P4S	180	280	46	FAG	Angular Contact Ball Bearings
  K45X53X20FH,ZB2	45	53		Timken	Needle Roller Bearings
  NJ318-E-TVP2	90	190	43	FAG	Cylindrical Roller Bearings
  NCF1860V	300	359	38	NSK	Cylindrical Roller Bearings
  NJ2307	35	80	31	ISO	Cylindrical Roller Bearings
  NU 2092 ECMA	680	460	128	SKF	Thrust Ball Bearings
  NU 2216	80	140	33	SIGMA	Cylindrical Roller Bearings
  RB201	12	47	31	KOYO	Deep Groove Ball Bearings
  TLA 3018 Z	30	37	18	IKO	Needle Roller Bearings
  Y138	20,638	26,988	12,7	KOYO	Needle Roller Bearings
  H304.010	20	32		FAG	ADAPTERS
  SBB80	5.0000	7.7500	4.3750	IKO	SPHERICAL PLAIN BEARINGS
  HML-43T			30	CONSOLIDATED	WITHDRAWAL NUTS
  AH-3134x160	170	160		CONSOLIDATED	WITHDRAWAL SLEEVES