d - 71,438 mm

T - 41,275 mm

B - 41,275 mm

C - 31,75 mm

a - 30,3 mm

r min. - 3,6 mm

r1 min. - 3,2 mm

Da - 116 mm

db - 81 mm

da - 87 mm

Db - 124 mm

Basic dynamic load rating (C) - 197 kN

Basic static load rating (C0) - 267 kN

Calculation factor (e) - 0,36

Calculation factor (Y0) - 0,91

Calculation factor (Y1) - 1,66

• Model Number:644/633
• Inner Diameter：71,438mm Outer Diameter：mm Width：41,275mm
• Type：Tapered Roller Bearings
• Update date：2025-12-12
• Application:vertical pull,nail products,roller lathe,rolling mill roll neck and slowdown device,directional control valve,car and accessories,clean stationery,metallurgy,survey accessories,Cleaning equipment,security equipment
• Similar models:ISO HM516448/10 NSK 64450/64700 NTN HM266449/HM266410DC+A FBJ 64450/64700 NTN M276449/M276410DG2+A NTN E-HM266448/HM266410 KOYO 47TS644836B ISB 64450/64700 KOYO HM266446/HM266410 NTN 4T-644/632
• BEARING POWER International Trading Co.,Ltd. specialize in 644/633 products，there is large inventory of KOYO 644/633 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 644/633 Which KOYO 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
  22213EAW33	65,000	120,000	31,000	SNR	Thrust Roller Bearings
  3NCHAC910CA	50	72	12	KOYO	Angular Contact Ball Bearings
  53222	110	160		ISO	Thrust Ball Bearings
  AST40 4540	45	50		AST	Plain Bearings
  B7228-C-T-P4S	140	250	42	FAG	Angular Contact Ball Bearings
  GEGZ88ES-2RS	88,9	149,225	90,424	LS	Plain Bearings
  KBC065	165,1	180,975	7,938	KOYO	Deep Groove Ball Bearings
  K16X22X12	16	22	12	INA	Needle Roller Bearings
  K81103TN	17	30	18	SKF	Thrust Roller Bearings
  KBK9X13X12,5	9	13	12,5	ISO	Needle Roller Bearings
  NAX 1023	10	19		IKO	Complex Bearings
  NK80/35	80	95	35	SKF	Needle Roller Bearings
  NNU48/630	630	780	150	KOYO	Cylindrical Roller Bearings
  NU2322	110	240	80	CYSD	Cylindrical Roller Bearings
  NUP1038	190	290	46	KOYO	Cylindrical Roller Bearings
  US207-23	36,5125	72	17	SNR	Deep Groove Ball Bearings
  LRB-121612	.7500		.7600	IKO	NEEDLE BEARINGS
  WS81111	55	78		FAG	THRUST ROLLER BEARINGS
  F688ZZS	8	16	5	ISC	DEEP GROOVE BALL BEARINGS
  6010	50	80	16	SKF	DEEP GROOVE BALL BEARINGS