d - 61,976 mm

D - 101,6 mm

T - 24,608 mm

B - 24,608 mm

C - 19,845 mm

ra1 max. - 3,3 mm

a - 1,7 mm

Da - 90 mm

db - 68 mm

ra max. - 2 mm

da - 72 mm

Db - 97 mm

Weight - 0,768 Kg

Basic dynamic load rating (C) - 90,5 kN

Basic static load rating (C0) - 134 kN

(Grease) Lubrication Speed - 3 500 r/min

(Oil) Lubrication Speed - 4 700 r/min

Calculation factor (e) - 0,43

Calculation factor (Y0) - 0,78

Calculation factor (Y2) - 1,41

• Model Number: 4T-28990/28920
• Inner Diameter：61,976mm Outer Diameter：101,6mm Width：24,608mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:pump industry,hydraulic actuator,Industrial,turret industry,axle lathe,CNC,altimeter etc,bathroom facilities,industrial fans,chemical instruments,Embroidery
• Similar models:ISO 28990/28920 Timken 28990/28921D NTN 4T-28990/28919 Timken 28990/28919 NTN 4T-28990/28920 CX 28990/28920 FBJ 28990/28920 Timken 28990/28920
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-28990/28920 products，there is large inventory of NTN 4T-28990/28920 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-28990/28920 Which NTN 4T-28990/28920 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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