Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 6311-2Z

6311-2Z

SKF Explorer

Dimensions

d		55	mm
D		120	mm
B		29	mm
d₁	≈	75.34	mm
D₂	≈	103.7	mm
r_1,2	min.	2	mm

Abutment dimensions

d_a	min.	66	mm
d_a	max.	75.2	mm
D_a	max.	109	mm
r_a	max.	2	mm

Calculation data

Basic dynamic load rating	C	74.1	kN
Basic static load rating	C₀	45	kN
Fatigue load limit	P_u	1.9	kN
Reference speed		12000	r/min
Limiting speed		6300	r/min
Calculation factor	k_r	0.03
Calculation factor	f₀	13.1

Mass

Mass bearing

1.42

Model Number: 6311-2Z
Inner Diameter：55mm Outer Diameter：120mm Width：29mm
Reference speed:6300 r/min Limiting speed:12000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-07-28
Application:Film machine,historical instruments,car,Hydraulic Equipment,Rolling mill gear box,electromagnet,Machine Tool Accessories,wall industry,expectoration machine,vertical pull,Processing machinery
Similar models:6311 N 6311-RS1 6311/HC5C3 6311-2RS1 6311-2Z/VA201 6311 M 6311 6311-2RSH 6311 NR 6311-2ZNR
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Model No. Inner Diameter Outer Diameter Width Type

18x35x7 HMSA10 RG
4944
BTM 180 BM/HCP4CDB
C 41/500 K30M
Z 310 F

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Model No.	Inner Diameter	Outer Diameter	Width	Type
18x35x7 HMSA10 RG
4944
BTM 180 BM/HCP4CDB
C 41/500 K30M
Z 310 F