Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NU 311 ECNJ

NU 311 ECNJ

SKF Explorer

Dimensions

d		55	mm
D		120	mm
B		29	mm
D₁	≈	100.3	mm
D₃		115.21	mm
F		70.5	mm
C₂		4.06	mm
b		3.1	mm
r_1,2	min.	2	mm
r_3,4	min.	2	mm
s	max.	2	mm

Abutment dimensions

d_a	min.	65	mm
d_a	max.	68	mm
d_b	min.	73	mm
D_a	max.	109.2	mm
r_a	max.	2	mm
r_b	max.	2	mm

Calculation data

Basic dynamic load rating	C	156	kN
Basic static load rating	C₀	143	kN
Fatigue load limit	P_u	18.6	kN
Reference speed		6000	r/min
Limiting speed		7000	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

1.57

Associated products

Angle ring

HJ 311 EC

Model Number: NU 311 ECNJ
Inner Diameter：55mm Outer Diameter：120mm Width：29mm
Reference speed:7000 r/min Limiting speed:6000 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Single row cylindrical roller bearings
Details： Single row cylindrical roller bearings Cylindrical roller bearings, single row
Update date：2026-04-16
Application:rock drilling machinery,mathematical instruments,Water Monitoring,training beds etc,embroidery cloth,tapping machine,Gas turbine,crimping tools,sanitation facilities,E Beauty,leather processing
Similar models:NU 311 ECNJ BD-22311 EK-H 2311 W 6206-2RS1/VP311 331149 E/C675 32311 BR 6311-2Z/VA201 3311 A-2Z HM 231148/110 NU 311 ECM BT4B 331123 DG/HA1
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