d - 53.975 mm

D - 123.825 mm

T - 38.100 mm

B - 36.678 mm

C - 30.162 mm

a - 9.2 mm

r1 min. - 3.5 mm

r2 min. - 3.3 mm

Weight - 2,25 Kg

Basic dynamic load rating (C) - 149000 kN

Basic static load rating (C0) - 197000 kN

(Grease) Lubrication Speed - 3000 r/min

(Oil) Lubrication Speed - 4100 r/min

Calculation factor (e) - 0.35

Calculation factor (Y0) - 0.95

Calculation factor (Y1) - 1.73

• Model Number:557S/552A
• Inner Diameter：53.975mm Outer Diameter：123.825mm Width：38.100mm
• Type：Tapered Roller Bearings
• Update date：2025-12-16
• Application:pressure control valve,Oral Equipment,static control,light therapy instrument,forklift truck,Special Equipment,paper processing machine,Dental Drill etc,Automobile,rock drilling machinery,SPA equipment
• Similar models:Timken 25572/25520D+X1S-25572 Timken 25577/25520 Timken 15578/15520 Timken 25577/25518 CX 5578/5535 Timken 25578/25523 Timken NP320876/NP552557 NTN 4T-25577/25523 NSK 557S/552A FBJ 5578/5535
• BEARING POWER International Trading Co.,Ltd. specialize in 557S/552A products，there is large inventory of NACHI 557S/552A . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 557S/552A Which NACHI 557S/552A 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
  248/1180CAK30FA/W20	1180	1420	243	SKF	Spherical Roller Bearings
  32004AX	20	42	15	ZVL	Tapered Roller Bearings
  691	1	4	1,6	NSK	Deep Groove Ball Bearings
  7020DT	100	150	24	CYSD	Angular Contact Ball Bearings
  7924C	120	165	22	NTN	Angular Contact Ball Bearings
  AST650 303812	30	38		AST	Plain Bearings
  AST650 303860	30	38		AST	Plain Bearings
  KBC020	50,8	66,675	7,938	KOYO	Deep Groove Ball Bearings
  K-JLM714149/K-JLM714110	75	115	25	ZVL	Tapered Roller Bearings
  NUP 219	95	170	32	SIGMA	Cylindrical Roller Bearings
  NUP 2307	35	80	31	ISB	Cylindrical Roller Bearings
  NUP210-E-M6	50	90	20	NKE	Cylindrical Roller Bearings
  NUP328	140	300	62	NTN	Cylindrical Roller Bearings
  QJ 309 N2PHAS	100	45	25	SKF	Angular Contact Ball Bearings
  248/1120CAMA	1120	1360	243	SKF	SPHERICAL ROLLER BEARINGS
  NAF20x35x17	20	35	17	FAG (Old No.)	NEEDLE BEARINGS
  24040	200	310	109	Torrington	SPHERICAL ROLLER BEARINGS
  129	9	26	8	MRC	SELF
  NJ238	190	340	55	STEYR	CYLINDRICAL ROLLER BEARINGS
  NU-2960E	300	420	72	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS