Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 256 MA

NJ 256 MA

Dimensions

d		280	mm
D		500	mm
B		80	mm
d₁	≈	360	mm
D₁	≈	417	mm
F		340	mm
r_1,2	min.	5	mm
s	max.	3.8	mm

Abutment dimensions

d_a	min.	300	mm
d_a	max.	333	mm
d_b	min.	364	mm
D_a	max.	480	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	1140	kN
Basic static load rating	C₀	1800	kN
Fatigue load limit	P_u	156	kN
Reference speed		1400	r/min
Limiting speed		1900	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

Model Number: NJ 256 MA
Inner Diameter：280mm Outer Diameter：500mm Width：80mm
Reference speed:1900 r/min Limiting speed:1400 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:journal lathe,ignition system,DC generators,enzyme,wheel lathe,baler,gear grinding machine,transistor fittings,hook,switch,insect experimental analysis instrument
Similar models:AOH 2256 G SNP 3256x10.7/16 22256 CC/W33 305256 D NUTR 2562 X SNL 3256 G NU 2256 ECMA BD-23256 CCK/W33-OH 2356 H QJ 1256 N2MA 32256
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