d - 90 mm

T - 53,975 mm

B - 55,1 mm

C - 44,45 mm

a - 41 mm

r min. - 3 mm

r1 min. - 3 mm

Da - 141 mm

db - 98 mm

da - 102 mm

Db - 153,5 mm

Basic dynamic load rating (C) - 316 kN

Basic static load rating (C0) - 471 kN

Calculation factor (e) - 0,4

Calculation factor (Y0) - 0,82

Calculation factor (Y1) - 1,5

• Model Number: 6581XR/6525X
• Inner Diameter：90mm Outer Diameter：mm Width：55,1mm
• Type：Tapered Roller Bearings
• Update date：2025-04-24
• Application:Internal thread type,sawing machine,thin metal materials,medical equipment,Broadcasting System,tube,Spectrum Products,Forming mold,Cylinder Pneumatic Treatment Element,dye pigments,lifting tackle
• Similar models:NTN 4T-6581X/6535 KOYO 6581XR/6535 Timken 6581X/6535 Timken 6581X/6525X KOYO 6581XR/6525X NTN 4T-6581X/6525X
• BEARING POWER International Trading Co.,Ltd. specialize in 6581XR/6525X products，there is large inventory of KOYO 6581XR/6525X . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 6581XR/6525X Which KOYO 6581XR/6525X 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
  17119/17244	30,162	62	16,002	Timken	Tapered Roller Bearings
  1988R/1922	28,575	57,15	19,845	KOYO	Tapered Roller Bearings
  25590/20	45,618	82,931	23,812	PFI	Tapered Roller Bearings
  29352	260	420	95	Timken	Thrust Roller Bearings
  34306/34472X	77,788	120	23	Timken	Tapered Roller Bearings
  AST650 637560	63	75		AST	Plain Bearings
  423132E1	160	270	108	NTN	Tapered Roller Bearings
  5305-2RS	25	62	25,4	FBJ	Angular Contact Ball Bearings
  545/532-B	49,212	111,125	36,957	Timken	Tapered Roller Bearings
  EXPG202	15			SNR	Bearing Units
  K50X66X30H	50	70		KOYO	Needle Roller Bearings
  NA4901-2RSR	12	24	14	INA	Needle Roller Bearings
  NJ2232 EM	160	290	80	AST	Cylindrical Roller Bearings
  NU 328 ECJ	300	140	62	SKF	Thrust Ball Bearings
  QJ203	17	40	12	ISO	Angular Contact Ball Bearings
  SCE86-P	12,7	17,462	9,525	INA	Needle Roller Bearings
  SL181896-E-TB	480	600	56	INA	Cylindrical Roller Bearings
  1630DC	.7500	1.6250	.5000	NICE	DEEP GROOVE BALL BEARINGS
  R1F-3	.0550	.1875	.1094	NMB	DEEP GROOVE BALL BEARINGS
  FY-107X	1.4375			CONSOLIDATED	PILLOW BLOCKS