d - 44,45 mm

D - 83,058 mm

T - 23,812 mm

B - 25,4 mm

C - 19,05 mm

ra1 max. - 3,3 mm

a - 17,6 mm

r min. - 3,5 mm

r1 min. - 3,3 mm

Da - 72 mm

db - 51 mm

ra max. - 3,5 mm

da - 56 mm

Db - 78 mm

Weight - 0,56 Kg

Basic dynamic load rating (C) - 76,5 kN

Basic static load rating (C0) - 99 kN

(Grease) Lubrication Speed - 4500 r/min

(Oil) Lubrication Speed - 6000 r/min

Calculation factor (e) - 0,33

Calculation factor (Y0) - 0,99

Calculation factor (Y1) - 1,8

• Model Number:25580/25521
• Inner Diameter：44,45mm Outer Diameter：83,058mm Width：23,812mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:lifting tackle,pump industry,Grinding and polishing equipment,hardware,magnetic elements,water protection,mechanical annex,Spectrum Products,die casting mold,Vertical machining,wall materials
• Similar models:NTN 4T-25580/25520 ZVL K-25580/K-25521 FBJ 25580/25520 Timken 25580/25526 Fersa 25580/25523 NTN 4T-25580/25521 KOYO 25580/25524 NSK 25580/25520 NSK 25580/25521 ISB 25580/25523
• BEARING POWER International Trading Co.,Ltd. specialize in 25580/25521 products，there is large inventory of NSK 25580/25521 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 25580/25521 Which NSK 25580/25521 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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  6030	150	225	35	NACHI	Deep Groove Ball Bearings
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  HCB7220-C-T-P4S	100	180	34	FAG	Angular Contact Ball Bearings
  IJ223022				ILJIN	Angular Contact Ball Bearings
  K 81118-TVPB	90	120	9	NKE	Thrust Roller Bearings
  K45284-45220	50,8	104,775	30,162	FAG	Tapered Roller Bearings
  NP207 E	35	72	17	CX	Cylindrical Roller Bearings
  WJ-566416	88,9	101,6		NSK	Needle Roller Bearings
  SM1311W-BR	93,6625	170	93,66	Timken	Deep Groove Ball Bearings
  NU234	170	310	52	FAG	CYLINDRICAL ROLLER BEARINGS
  01/02/7317	85	180	41	RIV	TAPERED ROLLER BEARINGS
  HFL-7C	.4375		.5625	Heim	ROD ENDS
  RF-930ZZ	3	9	5	NMB	DEEP GROOVE BALL BEARINGS
  SJ7173			.7500	RBC	NEEDLE BEARINGS
  RMS-12-L	1.2500	3.1250	.8750	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  SAL60ES	60		44	CONSOLIDATED	ROD ENDS