Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 221 ECJ

NJ 221 ECJ

SKF Explorer

Dimensions

d		105	mm
D		190	mm
B		36	mm
d₁	≈	134	mm
D₁	≈	164	mm
F		125	mm
r_1,2	min.	2.1	mm
r_3,4	min.	2.1	mm
s	max.	2	mm

Abutment dimensions

d_a	min.	117	mm
d_a	max.	122	mm
d_b	min.	137	mm
D_a	max.	177.3	mm
r_a	max.	2	mm

Calculation data

Basic dynamic load rating	C	300	kN
Basic static load rating	C₀	315	kN
Fatigue load limit	P_u	36.5	kN
Reference speed		3800	r/min
Limiting speed		4300	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

Associated products

Angle ring

HJ 221 EC

Model Number: NJ 221 ECJ
Inner Diameter：105mm Outer Diameter：190mm Width：36mm
Reference speed:4300 r/min Limiting speed:3800 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：2026-04-20
Application:Roller,mathematical instruments,agricultural testing and analysis equipment and related,chuck industry,Pest Monitoring,garden machinery,safety testing,Cutting Machine,Vertical machining,leather processing,extruder
Similar models:22210 E BD-22212 EK-H 312 FSAF 22216 HK 2218 RS BD-22219 EK-H 319 2219 K NJ 221 ECJ 2210 ETN9 2215 EKTN9 + H 315 22218 EK
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Hot number： 10129 150 VS R 16315 240/630 ECJ/W33 2205 EKTN9 + H 305 32004 X 403403 6203-RSL FYTB 507 M NJ 2218 ECM NK 15/16 NU 209 ECP NUP 252 MA SAFS 22515 x 2.1/2 W 629-2Z