Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 303 ECP

NJ 303 ECP

SKF Explorer

Dimensions

d		17	mm
D		47	mm
B		14	mm
d₁	≈	27.7	mm
D₁	≈	36.75	mm
F		24.2	mm
r_1,2	min.	1	mm
r_3,4	min.	0.6	mm
s	max.	1	mm

Abutment dimensions

d_a	min.	22.1	mm
d_a	max.	23.1	mm
d_b	min.	29	mm
D_a	max.	41.7	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	28.5	kN
Basic static load rating	C₀	20.4	kN
Fatigue load limit	P_u	2.55	kN
Reference speed		17000	r/min
Limiting speed		20000	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

0.12

Model Number: NJ 303 ECP
Inner Diameter：17mm Outer Diameter：47mm Width：14mm
Reference speed:20000 r/min Limiting speed:17000 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:Special Equipment,building decoration raw materials and accessories,screen filter,Machine Tool Accessories,marine analysis and testing equipment,agrochemical,pump industry,marine analysis,organic raw materials,Warehouse Shelf Equipment,pressure control valve
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Model No.	Inner Diameter	Outer Diameter	Width	Type
28x42x7 CRW1 V	28	42	7	Seals
3210 A	50	90	30.2	Bearings, units and housings
5046	12.7	28.55	7.95	Seals
7018 CB/P4A	90	140	24	Bearings, units and housings
7221 ACD/P4A	105	190	36	Bearings, units and housings
7478	19.05	31.75	4.78	Seals
FSAF 22518 x 3.1/4	82.55	-	-	Bearings, units and housings
FYT 35 TF/VA228	35	-	46.4	Bearings, units and housings
HJ 244 EC	220	284	25	Bearings, units and housings
PSM 061206 A51	6	12	6	Bearings, units and housings
SSAFS 22518 x 3.1/8 T	79.375	-	-	Bearings, units and housings
WS 81207	35		5.25	Bearings, units and housings

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