d - 42.875 mm

D - 83.058 mm

T - 23.812 mm

B - 25.400 mm

C - 19.050 mm

a - 6.2 mm

r1 min. - 3.5 mm

r2 min. - 3.3 mm

Weight - 0,579 Kg

Basic dynamic load rating (C) - 78500 kN

Basic static load rating (C0) - 98000 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: 25577/25521
• Inner Diameter：42.875mm Outer Diameter：83.058mm Width：23.812mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:atomizer class,plant determination,Pneumatic Actuator,Traffic Fire Protection Equipment Security equipment,small diesel generators,Optical Instruments,Performance test,ignition system,sample cup,non-motor vehicle Electric car,bio-chemical
• Similar models:ISO 25577/25520 Timken 25577/25523 SKF 25577/2/25520/2/Q NTN 4T-25577/25520 Timken 25577/25519 NACHI 25577/25520 NSK 25577/25523 Fersa 25577/25520 NACHI 25577/25521 KOYO 25577/25520
• BEARING POWER International Trading Co.,Ltd. specialize in 25577/25521 products，there is large inventory of NACHI 25577/25521 . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 25577/25521 Which NACHI 25577/25521 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  231/600 KCW33+H31/600	600	980	300	CX	Spherical Roller Bearings
  32024-X-XL	120	180	38	FAG	Tapered Roller Bearings
  594/592XE	95,25		36,322	KOYO	Tapered Roller Bearings
  6210-2RZ	50	90	20	ISB	Deep Groove Ball Bearings
  6301N	12	37	12	NTN	Deep Groove Ball Bearings
  E17KRR	17	40	27,78	Timken	Deep Groove Ball Bearings
  FYR 1 3/4	44,45	68,659	57,15	SKF	Bearing Units
  K40x46x17	40	46	17	ISO	Needle Roller Bearings
  KBX040	101,6	117,475	7,938	KOYO	Angular Contact Ball Bearings
  NJ2217 E	85	150	36	CX	Cylindrical Roller Bearings
  NU2212 E	60	110	28	AST	Cylindrical Roller Bearings
  UCFB205	25			KOYO	Bearing Units
  UCP320-63	100,0125		108	FYH	Bearing Units
  81310			14	INA	THRUST ROLLER BEARINGS
  SJ7315			1.2500	RBC	NEEDLE BEARINGS
  77207	35	72	17	New Departure	DEEP GROOVE BALL BEARINGS
  93624	1.1250	1.5000	1.0000	RBC	JOURNAL ROLLER ASSEMBLIES
  NJ-2322	110	240	80	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  GE-80SX	80	125	27	CONSOLIDATED	SPHERICAL PLAIN BEARINGS
  NU-19/950E	950	1250	132	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS