d - 28 mm

D - 68 mm

T - 19,75 mm

B - 18 mm

C - 14 mm

a - 17,8 mm

r min. - 1,5 mm

r2 min. - 1,5 mm

da min. - 36,5 mm

da max - 37 mm

Da min - 55 mm

Da max. - 59,5 mm

Db min. - 64 mm

ra max. - 1,5 mm

rb max. - 1,5 mm

Weight - 0,332 Kg

Basic dynamic load rating (C) - 51,7 kN

Basic static load rating (C0) - 50,2 kN

(Grease) Lubrication Speed - 6200 r/min

(Oil) Lubrication Speed - 8200 r/min

Calculation factor (e) - 0,55

Calculation factor (Y0) - 0,6

Calculation factor (Y1) - 1,1

• Model Number:303/28CR
• Inner Diameter：28mm Outer Diameter：68mm Width：19,75mm
• Type：Tapered Roller Bearings
• Update date：2025-12-09
• Application:mathematical instruments,industrial fans,tapered grinder,security equipment,Surveying Surveying Instruments,vacuum filter,safety testing,electric pump,lathe,Performance test,engine
• Similar models:NTN 430319XU ISO 30319 PFI 30303 KOYO 46T30308DJR/39,5 FAG 30310-A NACHI E30307DJ NACHI 30317 FAG 30309-A ISO 30340 SNR 30313A
• BEARING POWER International Trading Co.,Ltd. specialize in 303/28CR products，there is large inventory of KOYO 303/28CR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 303/28CR Which KOYO 303/28CR 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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