d - 71.438 mm

D - 130.175 mm

T - 41.275 mm

B - 41.275 mm

C - 31.750 mm

a - 11.2 mm

r1 min. - 3.5 mm

r2 min. - 3.3 mm

Weight - 2,55 Kg

Basic dynamic load rating (C) - 151000 kN

Basic static load rating (C0) - 229000 kN

(Grease) Lubrication Speed - 2800 r/min

(Oil) Lubrication Speed - 3800 r/min

Calculation factor (e) - 0.36

Calculation factor (Y0) - 0.91

Calculation factor (Y1) - 1.7

• Model Number:644/633
• Inner Diameter：71.438mm Outer Diameter：130.175mm Width：41.275mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:Material handling equipment,Medical equipment,chemical instruments,other processing,Storage Device,pump industry,Die,internal combustion engine,garbage disposal,Machine tool accessories,Cylinder Standard
• Similar models:KOYO HM266447/HM266410 NTN T-HM266449D/HM266410G2+A ISO HM266449/10 CX 64450/64708 NACHI 64450/64700 ISB M276449/M276410 SKF 64450/64700 NTN HM266449TD/HM266410 Timken HM516442/HM516410 Fersa HM516449C/HM516410
• BEARING POWER International Trading Co.,Ltd. specialize in 644/633 products，there is large inventory of NACHI 644/633 . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 644/633 Which NACHI 644/633 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
  102036/102072H	36	72	42	Gamet	Tapered Roller Bearings
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  23168 K	340	580	190	ISB	Spherical Roller Bearings
  32213A	65	120	32,75	SNR	Tapered Roller Bearings
  3585R/3525	41.275	87.313	30.163	NACHI	Tapered Roller Bearings
  51106	30,000	47,000	11,000	NTN-SNR	Thrust Ball Bearings
  545112/545139	285,75	354,012	33,338	Timken	Tapered Roller Bearings
  6316 M/C3VL0241	170	80	39	SKF	Deep Groove Ball Bearings
  67884/67820	187,325	266,7	47,625	ISO	Tapered Roller Bearings
  GBRI 243720	38,1	58,738	32	IKO	Needle Roller Bearings
  LM665949/10	385,762	514,35	82,55	ISO	Tapered Roller Bearings
  NUP2305-E-TVP3	25	62	24	NKE	Cylindrical Roller Bearings
  O-40	127.000	185.738	50.800	NACHI	Thrust Ball Bearings
  RNU 208 ECP	80	49,5	18	SKF	Cylindrical Roller Bearings
  TLAM 1010	10	14	10	IKO	Needle Roller Bearings
  YA200RRB	50,8	100	46,6	Timken	Deep Groove Ball Bearings
  1322F	110	240	50	FED	DEEP GROOVE BALL BEARINGS
  NAST25P-2Z	25	52	20	SKF	NEEDLE BEARINGS
  MS-221/2	4.7500	10.0000	2.0000	FED	DEEP GROOVE BALL BEARINGS
  FPXD1200	12.0000	13.0000	.5000	SKF	FOUR POINT ANGULAR CONTACT BALL BEARINGS