d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 25 mm

ra1 max. - 2 mm

a - 24,5 mm

r min. - 2,5 mm

r1 min. - 2 mm

da min. - 67 mm

Da min - 104 mm

Da max. - 110 mm

db max. - 71 mm

Db min. - 111 mm

ra max. - 2 mm

Sa - 4 mm

Sb - 6,5 mm

Weight - 1,66 Kg

Basic dynamic load rating (C) - 155 kN

Basic static load rating (C0) - 179 kN

(Grease) Lubrication Speed - 3 300 r/min

(Oil) Lubrication Speed - 4 400 r/min

Calculation factor (e) - 0,35

Calculation factor (Y0) - 0,96

Calculation factor (Y2) - 1,74

• Model Number: 4T-30311
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:stirrer,Garment Accessories,Industry,hydraulic cylinder buffer,Antenna Potentials,comprehensive experiment,roller lathe,Forming mold,food testing,Solenoid Valves,training beds etc
• Similar models:KOYO 30311JR CYSD 30311 KOYO 30311CR FAG 30311-A SKF 30311J2/Q KOYO 46T30311JR/57 ISO 30311 NKE 30311 Timken 30311 FBJ 30311
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-30311 products，there is large inventory of NTN 4T-30311 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-30311 Which NTN 4T-30311 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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  NAF20x37x16	20	37	16	SKF (Old No.)	NEEDLE BEARINGS
  NATR10	10	30	15	SKF	NEEDLE BEARINGS
  RNAO-35x47x16	47		16	CONSOLIDATED	NEEDLE BEARINGS
  81205			7.0	CONSOLIDATED	THRUST ROLLER BEARINGS