d - 42,875 mm

D - 82,931 mm

T - 23,812 mm

B - 25,4 mm

C - 19,05 mm

a - 17,5 mm

r min. - 3,6 mm

r2 min. - 0,8 mm

da min. - 55 mm

Da - 74 mm

db min - 49 mm

ra max. - 3,6 mm

rb max. - 0,8 mm

Db - 77 mm

Weight - 0,582 Kg

Basic dynamic load rating (C) - 77,2 kN

Basic static load rating (C0) - 100 kN

(Grease) Lubrication Speed - 4800 r/min

(Oil) Lubrication Speed - 6300 r/min

Calculation factor (e) - 0,33

Calculation factor (Y0) - 0,99

Calculation factor (Y1) - 1,79

• Model Number: 25577/25520
• Inner Diameter：42,875mm Outer Diameter：82,931mm Width：23,812mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:Storage Tool,hot and cold box,Power equipment,Plastic molding,chromatography,food packaging,motor,Dental Drill etc,fabric products,Laser Cutting,Die
• Similar models:Fersa 25577/25522 SKF 25577/2/25523/2/Q NTN 4T-25577/25521 Fersa 25577/25520 Fersa 25577/25521 CX 25577/25522 NSK 25577/25523 KOYO 25577/25520 CX 25577/25520 Fersa 25577/25523
• BEARING POWER International Trading Co.,Ltd. specialize in 25577/25520 products，there is large inventory of KOYO 25577/25520 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 25577/25520 Which KOYO 25577/25520 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
  51106	30	47	11	SKF	Thrust Ball Bearings
  51430 M	300	150	120	SKF	Thrust Ball Bearings
  61803-Z.T9H.C3	17	26	5	ZEN	Deep Groove Ball Bearings
  6208LLUD2	40,000	80,000	36,000	NTN	Deep Groove Ball Bearings
  7211	55	100	21	NACHI	Angular Contact Ball Bearings
  GEC750FBAS	750	1000	335	SKF	Plain Bearings
  HDS001	70	194	112	SNR	Tapered Roller Bearings
  LUNF 20	20			SKF	Linear Bearings
  NAP202-10	15,875		30,2	KOYO	Bearing Units
  NU 430	150	380	85	NSK	Cylindrical Roller Bearings
  NU3144	220	370	120	ISO	Cylindrical Roller Bearings
  RNA5924	135	165	60	ISO	Needle Roller Bearings
  X31308/Y31308	40	90	25,25	Timken	Tapered Roller Bearings
  52312				FAG	THRUST BALL BEARINGS
  L1332U	160	340	68	Rollway	CYLINDRICAL ROLLER BEARINGS
  SN520	90		110	STEYR	PILLOW BLOCKS
  1310E	50	110	27	MRC	SELF
  315RDU#7BKE	75	160	37	MRC	ANGULAR CONTACT BALL BEARINGS
  IRZ-10x14x14JSI	10		14	CONSOLIDATED	NEEDLE BEARINGS
  H-3888x420	440	420		CONSOLIDATED	ADAPTERS