d - 71,438 mm

D - 136,525 mm

T1 - 16,662 mm

B - 41,275 mm

C - 31,75 mm

R - 3,6 mm

a - -11,2 mm

D1 - 143,561 mm

Da - 118 mm

db - 87 mm

C2 - 7,137 mm

da - 81 mm

Weight - 2,65 Kg

Basic static load rating (C0) - 298 kN

Factor (G1) - 106,4

Factor (G2) - 21

Factor (K) - 1,61

Basic dynamic load rating (C90) - 55,9

Basic dynamic load rating (Ca90) - 34,7

Basic dynamic load rating (C1) - 216 kN

Calculation factor (e) - 0,36

Calculation factor (Y) - 1,66

• Model Number: 644/632B
• Inner Diameter：71,438mm Outer Diameter：136,525mm Width：41,275mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:turret industry,education model Instruments,boring bar boring bar,non-ferrous metal alloy,Antenna Potentials,impression material,altimeter etc,plastic rolling,Roller,Leather Products,intermediate
• Similar models:Timken 644/632 KOYO HM266447/HM266410 KOYO 47TS644836B SKF M276449/410 Timken 64433/64700D+X1S-64433 KOYO HM266446/HM266410 FBJ HM516442/HM516410 NTN 4T-64450/64700CD+A NTN 4T-644/632 NTN M276449D/M276410G2+A
• BEARING POWER International Trading Co.,Ltd. specialize in 644/632B products，there is large inventory of Timken 644/632B . We has been built up long-term cooperation with Timken company, could make a bulk order of the 644/632B Which Timken 644/632B 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
  239/560E	560	750	140	NACHI	Cylindrical Roller Bearings
  23034CK	170	260	67	AST	Spherical Roller Bearings
  527/522	44,45	101,6	34,925	KOYO	Tapered Roller Bearings
  6017ZNR	85,000	130,000	22,000	NTN	Deep Groove Ball Bearings
  708 ATBP4	8	22	7	CX	Angular Contact Ball Bearings
  7309 ADF	45	100	50	ISO	Angular Contact Ball Bearings
  7417 A-UO	85	210	104	CX	Angular Contact Ball Bearings
  AXN2052	20	42		NTN	Complex Bearings
  EE295102/295193	260,35	488,95	120,65	Timken	Tapered Roller Bearings
  EXFE203	17			SNR	Bearing Units
  GEZH104ES	31.75	61,913	35,31	SKF	Plain Bearings
  NJ2084	420	620	118	CX	Cylindrical Roller Bearings
  NNU 49/500 BK/SPW33X	500	670	170	SKF	Cylindrical Roller Bearings
  UCFX05-16	25,4			FYH	Bearing Units
  AH2308	40	35		SKF	WITHDRAWAL SLEEVES
  203-MFF	17	40	12	MRC	DEEP GROOVE BALL BEARINGS
  FPXF1800	18.0000	19.5000	.7500	SKF	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  NKX50	62	50		SKF	NEEDLE BEARINGS
  95932	1.5000	2.1250	2.0000	CONSOLIDATED	JOURNAL ROLLER ASSEMBLIES
  GE-160C-2RS	160	230	105	CONSOLIDATED	SPHERICAL PLAIN BEARINGS