Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications15 parameters

Core specifications
Parameter	Symbol	Value
Series		NJ420
Bore diameter	d	100 mm
Outside diameter	D	250 mm
Width	B	58 mm
Basic dynamic load rating	C	550 kN
Basic static load rating	C0	530 kN
Fatigue load limit	Pu	88 kN
Reference speed	nref	2950 r/min
Limiting speed	nG	5000 r/min
Mass	≈m	16.1 kg
Precision class		PN — Normal (ISO 492:2023)
Internal clearance		CN (Group N) — Normal internal clearance
Cage		M1 — Two Piece Brass Cage Roller Guided
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	150 °C

Product characteristics5 parameters

Product characteristics
Parameter	Symbol	Value
Design		Standard
Cage	M1	Two Piece Brass Cage Roller Guided
Radial internal clearance	CN (Group N)	Normal internal clearance
Tolerance class	PN	Normal (ISO 492:2023)
Number of rows	1	Single-row design

Main Dimensions & Performance Data9 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	100 mm3.937 in
Outside diameter	D	250 mm9.843 in
Width	B	58 mm2.283 in
Basic dynamic load rating, radial	Cr	550,000 N123,651.079 lbf
Basic static load rating, radial	C0r	530,000 N119,154.676 lbf
Fatigue load limit, radial	Cur	88,000 N19,784.173 lbf
Limiting speed	nG	5,000 1/min
Reference speed	nϑr	2,950 1/min
Mass	≈m	16.1 kg35.494 lbs

Mounting dimensions5 parameters

Mounting dimensions
Parameter	Symbol	Value
Minimum diameter shaft shoulder	da min	120 mm4.724 in
Maximum diameter of shaft shoulder	da max	137 mm5.394 in
Maximum diameter of housing shoulder	Da max	230 mm9.055 in
Minimum shaft shoulder	dc min	156 mm6.142 in
Maximum recess radius	ra max	3 mm0.118 in

Dimensions7 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension	rmin	4 mm0.157 in
Minimum chamfer dimension	r1 min	4 mm0.157 in
Axial displacement	s	5.7 mm0.224 in
Raceway diameter outer ring	E	211 mm8.307 in
Raceway diameter inner ring	F	139 mm5.472 in
Minimum rib diameter outer ring	D1 min	198.2 mm7.803 in
Maximum rib diameter inner ring	d1	152.8 mm6.016 in

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	150 °C302 °F

Capabilities & suitability5 parameters

Capabilities & suitability
Parameter	Symbol	Value
Radial load capacity		Yes
Axial load capacity in one direction		Yes
Suitable for grease lubrication		Yes
Suitable for oil lubrication		Yes
Unsealed design		Yes

Manufacturer Identity7 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Cylindrical roller bearing NJ..-M1, with cage, single row, semi-locating bearing, 2 ribs on outer ring, 1 rib on inner ring, type NJ
Short Description		Cylindrical roller bearing

Additional information1 parameter

Additional information
Parameter	Symbol	Value
L-washer		HJ420

Technical Data22 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		100 mm
Outside Diamater (D)		250 mm
Total Width (B)		58 mm
Basic Dynamic Load Rating, Radial (Cr)		550,000 N
Basic Static Load Rating, Radial (C0R)		530,000 N
Raceway Diameter Inner Ring (F)		139 mm
Operating Temperature Min. (Tmin)		-30 °C
Minimum Diameter Shaft Shoulder (Da)		120 mm
Operating Temperature Max. (Tmax)		150 °C
Limiting Speed (Limiting Spe)		5,000 1/min
Minimum Shaft Shoulder (Dc Min)		156 mm
Reference Speed (Nϑr)		2,950 1/min
Maximum Recess Radius (Ra Max)		3 mm
Maximum Diameter Of Housing Shoulder (Da)		230 mm
Maximum Rib Diameter Inner Ring (D1)		152.8 mm
Minimum Chamfer Dimension (R1 Min)		4 mm
Axial Displacement (S)		5.7 mm
Minimum Rib Diameter Outer Ring (D1 Min)		198.2 mm
Maximum Diameter Of Shaft Shoulder (Da Max)		137 mm
Minimum Chamfer Dimension (Rmin)		4 mm
Raceway Diameter Outer Ring (E)		211 mm
Fatigue Load Limit, Radial (Cur)		88,000 N

FAG NJ420-XL-M1