Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 321 ECJ

NJ 321 ECJ

SKF Explorer

Dimensions

d		105	mm
D		225	mm
B		49	mm
d₁	≈	145	mm
D₁	≈	189	mm
F		133	mm
r_1,2	min.	3	mm
r_3,4	min.	3	mm
s	max.	3.4	mm

Abutment dimensions

d_a	min.	119	mm
d_a	max.	129	mm
d_b	min.	148	mm
D_a	max.	209.4	mm
r_a	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	500	kN
Basic static load rating	C₀	500	kN
Fatigue load limit	P_u	57	kN
Reference speed		3200	r/min
Limiting speed		3800	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

8.73

Model Number: NJ 321 ECJ
Inner Diameter：105mm Outer Diameter：225mm Width：49mm
Reference speed:3800 r/min Limiting speed:3200 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:wire industry,stamping die and its equipment,ultra-quiet generators,Storage Device,Animal Tracking,boring bar boring bar,garden machinery,vacuum filter,thin metal materials,car,wall materials
Similar models:33217T145/DB NJ 321 ECP 33212/DF BD-23218 CCK/W33-AHX 3218 PPMF 202321.5 3216 A BD-23218 CCK/W33-H 2318 BT4B 332124/HA4 33215/DF 33219
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