Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 252 MA

NJ 252 MA

Dimensions

d		260	mm
D		480	mm
B		80	mm
d₁	≈	340	mm
D₁	≈	397	mm
F		320	mm
r_1,2	min.	5	mm
s	max.	3.4	mm

Abutment dimensions

d_a	min.	280	mm
d_a	max.	313	mm
d_b	min.	344	mm
D_a	max.	460	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	1170	kN
Basic static load rating	C₀	1700	kN
Fatigue load limit	P_u	150	kN
Reference speed		1400	r/min
Limiting speed		2000	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 252 MA
Inner Diameter：260mm Outer Diameter：480mm Width：80mm
Reference speed:2000 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：2025-12-09
Application:hydraulic actuator,Dental Equipment,gear grinding machine,plant determination,sample cup,spring industry,paint paint,oral medical device,disposable,Security Equipment,food add
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