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		NJ1024
Bore diameter	d	120 mm
Outside diameter	D	180 mm
Width	B	28 mm
Basic dynamic load rating	C	175 kN
Basic static load rating	C0	208 kN
Fatigue load limit	Pu	32.5 kN
Reference speed	nref	3550 r/min
Limiting speed	nG	7300 r/min
Mass	≈m	2.52 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	120 mm4.724 in
Outside diameter	D	180 mm7.087 in
Width	B	28 mm1.102 in
Basic dynamic load rating, radial	Cr	175,000 N39,343.525 lbf
Basic static load rating, radial	C0r	208,000 N46,762.59 lbf
Fatigue load limit, radial	Cur	32,500 N7,306.655 lbf
Limiting speed	nG	7,300 1/min
Reference speed	nϑr	3,550 1/min
Mass	≈m	2.52 kg5.556 lbs

Mounting dimensions5 parameters

Mounting dimensions
Parameter	Symbol	Value
Minimum diameter shaft shoulder	da min	126 mm4.961 in
Maximum diameter of shaft shoulder	da max	134 mm5.276 in
Maximum diameter of housing shoulder	Da max	171 mm6.732 in
Minimum shaft shoulder	dc min	143 mm5.63 in
Maximum recess radius	ra max	2 mm0.079 in

Dimensions7 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension	rmin	2 mm0.079 in
Minimum chamfer dimension	r1 min	1.1 mm0.043 in
Axial displacement	s	3.2 mm0.126 in
Raceway diameter outer ring	E	165 mm6.496 in
Raceway diameter inner ring	F	135 mm5.315 in
Minimum rib diameter outer ring	D1 min	159.7 mm6.287 in
Maximum rib diameter inner ring	d1	140.8 mm5.543 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 Identity10 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Cylindrical roller bearing NJ..-XL-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

Technical Data22 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		120 mm
Outside Diamater (D)		180 mm
Total Width (B)		28 mm
Basic Dynamic Load Rating, Radial (Cr)		175,000 N
Basic Static Load Rating, Radial (C0R)		208,000 N
Raceway Diameter Inner Ring (F)		135 mm
Operating Temperature Min. (Tmin)		-30 °C
Minimum Diameter Shaft Shoulder (Da)		126 mm
Operating Temperature Max. (Tmax)		150 °C
Limiting Speed (Limiting Spe)		7,300 1/min
Minimum Shaft Shoulder (Dc Min)		143 mm
Reference Speed (Nϑr)		3,550 1/min
Maximum Recess Radius (Ra Max)		2 mm
Maximum Diameter Of Housing Shoulder (Da)		171 mm
Maximum Rib Diameter Inner Ring (D1)		140.8 mm
Minimum Chamfer Dimension (R1 Min)		1.1 mm
Axial Displacement (S)		3.2 mm
Minimum Rib Diameter Outer Ring (D1 Min)		159.7 mm
Maximum Diameter Of Shaft Shoulder (Da Max)		134 mm
Minimum Chamfer Dimension (Rmin)		2 mm
Raceway Diameter Outer Ring (E)		165 mm
Fatigue Load Limit, Radial (Cur)		32,500 N