Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 228 ECM

NJ 228 ECM

SKF Explorer

Dimensions

d		140	mm
D		250	mm
B		42	mm
d₁	≈	179	mm
D₁	≈	215.78	mm
F		169	mm
r_1,2	min.	3	mm
r_3,4	min.	3	mm
s	max.	2.5	mm

Abutment dimensions

d_a	min.	154	mm
d_a	max.	165	mm
d_b	min.	182	mm
D_a	max.	235	mm
r_a	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	450	kN
Basic static load rating	C₀	510	kN
Fatigue load limit	P_u	57	kN
Reference speed		2800	r/min
Limiting speed		3200	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

9.55

Associated products

Angle ring

HJ 228 EC

Model Number: NJ 228 ECM
Inner Diameter：140mm Outer Diameter：250mm Width：42mm
Reference speed:3200 r/min Limiting speed:2800 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:Tool,electronic materials,medical treatment,chemical instruments,coal,rolling machine,Die,electrostatic protection,Spectrum Products,Other machinery,non-ferrous metal alloy
Similar models:YAR 211-2FW/VA228 NU 228 ECM 81228 M 7228 BM YAR 205-100-2FW/VA228 6208-2Z/VA228 SY 40 TF/VA228 YAR 207-2FW/VA228 6303-2Z/VA228 SY 2.3/16 TF/VA228
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Hot number： 13943 6203-RSL 7021 ACD/HCP4AH1 7320 BEM 85844 BT2B 328381/HA1 GEG 200 ES HK 1210 K 81111 TN N 1009 KTN/HC5SP OKCX 660 PCMW 142601.5 E RPNA 30/47 SSAFS 22216 TLC TUJ 50 TF