d - 53,975 mm

D - 120,65 mm

T - 41,275 mm

B - 41,275 mm

C - 31,75 mm

a - 27,3 mm

r min. - 3,6 mm

r2 min. - 3,2 mm

da min. - 70 mm

Da - 105 mm

db min - 63 mm

ra max. - 3,6 mm

rb max. - 3,2 mm

Db - 110 mm

Weight - 2,213 Kg

Basic dynamic load rating (C) - 174 kN

Basic static load rating (C0) - 217 kN

(Grease) Lubrication Speed - 3500 r/min

(Oil) Lubrication Speed - 4600 r/min

Calculation factor (e) - 0,31

Calculation factor (Y0) - 1,05

Calculation factor (Y1) - 1,91

• Model Number: 621/612
• Inner Diameter：53,975mm Outer Diameter：120,65mm Width：41,275mm
• Type：Tapered Roller Bearings
• Update date：2025-12-17
• Application:plastic molding,wheel lathe,expectoration machine,hydraulic pump,instrument,diagnostic test paper,drawing die,rolling mill roll neck and slowdown device,Insect Count,respirator,ventilation heating equipment
• Similar models:KOYO 621/612 NTN LM286249D/LM286210/LM286210DG2 ISO 13687/13621 KBC TR306217 KOYO 13687/13621 SKF BT1-0336/QVA621 KOYO 13686/13621 NTN LM286249D/LM286210G2+A SKF 32008XR/QVA621 SKF BT1-0251/QVA621
• BEARING POWER International Trading Co.,Ltd. specialize in 621/612 products，there is large inventory of KOYO 621/612 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 621/612 Which KOYO 621/612 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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