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：2025-12-10
• Application:engineering machinery,Laser Devices,Pneumatic Control Valves,screen filter,Broadcasting System,wheel lathe,Material handling equipment,X-ray Equipment,other mold,office equipment,Machine Tool Accessories
• Similar models:Timken 64452A/64700 Timken 644/632D+X1S-645 KOYO HM516447/HM516410 ISO HM516442/10 Timken 64452A/64700B Timken 64433/64700-B KOYO HM266449/HM266410 NTN M276449/M276410DG2+A NTN 4T-64450/64700D+A NTN T-HM266446/HM266410
• 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.

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