d - 71.438 mm

D - 136.525 mm

T - 41.275 mm

B - 41.275 mm

C - 31.750 mm

a - 11.0 mm

r1 min. - 6.4 mm

r2 min. - 3.2 mm

Weight - 2,5 Kg

Basic dynamic load rating (C) - 197000 kN

Basic static load rating (C0) - 267000 kN

(Grease) Lubrication Speed - 2500 r/min

(Oil) Lubrication Speed - 3500 r/min

Calculation factor (e) - 0.36

Calculation factor (Y0) - 0.91

Calculation factor (Y1) - 1.66

• Model Number: 645/632
• Inner Diameter：71.438mm Outer Diameter：136.525mm Width：41.275mm
• Type：Tapered Roller Bearings
• Update date：2025-12-13
• Application:wall materials,Machine tool accessories,lifting equipment Hoisting hoist,clean stationery,miscellaneous instruments,reinforced machinery,medical equipment,Medical equipment,hardware,other lathe,test laboratory equipment and accessories
• Similar models:Timken L44645/L44613 Fersa 645/632 KOYO 6454/6420 Timken 645X/632 KOYO 6455/6420 Timken NP296458/NP514720 Timken 645/632 NACHI 6454/6420 Timken 6455/6420 NACHI 645/632
• BEARING POWER International Trading Co.,Ltd. specialize in 645/632 products，there is large inventory of NACHI 645/632 . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 645/632 Which NACHI 645/632 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
  25878/25820	34,925	73,025	23,812	Fersa	Tapered Roller Bearings
  2776/2720	38,1	76,2	23,8125	AST	Tapered Roller Bearings
  32209	45	85	24,75	FBJ	Tapered Roller Bearings
  54312U+U312	62			ISO	Thrust Ball Bearings
  65BER20XV1V	65	100	22	NSK	Angular Contact Ball Bearings
  7022 B	110	170	28	ISO	Angular Contact Ball Bearings
  7992	460,000	620,000	74,000	NTN	Angular Contact Ball Bearings
  AST850SM 4530	45	50		AST	Plain Bearings
  LM229140C/LM229110	136,525	194,975	33	Timken	Tapered Roller Bearings
  N428	140	360	82	KOYO	Cylindrical Roller Bearings
  NAO30x47x16	30	47		CX	Cylindrical Roller Bearings
  NJ2203 E	17	40	16	CX	Cylindrical Roller Bearings
  NN3084K	420	620	150	KOYO	Cylindrical Roller Bearings
  P 1. FM	25,4	32	23	SKF	Bearing Units
  VEX 100 7CE3	100	150	24	SNFA	Angular Contact Ball Bearings
  UCTX08-24E	38,1			FYH	Bearing Units
  Y2212	34,925	41,275	19,05	KOYO	Needle Roller Bearings
  800SD41	800	1280	475	Torrington (Old No.)	SPHERICAL ROLLER BEARINGS
  LRJ9E	9.0000	14.5000	2.0000	RHP	CYLINDRICAL ROLLER BEARINGS
  KD-42CPO	4.2500	5.2500	.5000	CONSOLIDATED	DEEP GROOVE BALL BEARINGS