d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 25 mm

a - 25,5 mm

r min. - 2,5 mm

r2 min. - 2 mm

da min. - 67 mm

da max - 71 mm

Da min - 104 mm

Da max. - 108 mm

Db min. - 111 mm

ra max. - 2 mm

rb max. - 2 mm

Weight - 1,65 Kg

Basic dynamic load rating (C) - 149 kN

Basic static load rating (C0) - 170 kN

(Grease) Lubrication Speed - 3300 r/min

(Oil) Lubrication Speed - 4500 r/min

Calculation factor (e) - 0,35

Calculation factor (Y0) - 0,96

Calculation factor (Y1) - 1,74

• Model Number: 30311JR
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-04-22
• Application:gas turbine,internal combustion engine,Film machine,medical equipment,Vacuum generator,Special Equipment,Spectrum Products,Infrared Technology,electromagnetic clutch,ventilation fans,generator
• Similar models:KOYO 30311DJR KOYO 46T30311JR/57 Fersa 30311F PFI 30311 NTN 4T-30311DDF Timken X30311/Y30311 NACHI E30311J ISB 30311 Timken 30311 FAG 30311-A
• BEARING POWER International Trading Co.,Ltd. specialize in 30311JR products，there is large inventory of KOYO 30311JR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 30311JR Which KOYO 30311JR 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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