Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 18/630 ECMA/HB1

NJ 18/630 ECMA/HB1

Dimensions

d		630	mm
D		780	mm
B		69	mm
d₁	≈	682	mm
D₁	≈	724	mm
F		667	mm
r_1,2	min.	4	mm
s	max.	1.5	mm

Abutment dimensions

d_a	min.	645	mm
d_a	max.	662	mm
d_b	min.	685	mm
D_a	max.	765	mm
r_a	max.	3	mm

Calculation data

Basic dynamic load rating	C	1100	kN
Basic static load rating	C₀	2500	kN
Fatigue load limit	P_u	183	kN
Reference speed		750	r/min
Limiting speed		950	r/min
Calculation factor	k_r	0.1
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

Model Number: NJ 18/630 ECMA/HB1
Inner Diameter：630mm Outer Diameter：780mm Width：69mm
Reference speed:950 r/min Limiting speed:750 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:pump industry,Spectrum Products,sample cup,spring industry,embroidery cloth,experimental equipment,municipal machinery,coal,Textile Accessories,gear grinding machine,Textile Industry Accessories and Accessories
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