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		NU308
Bore diameter	d	40 mm
Outside diameter	D	90 mm
Width	B	23 mm
Basic dynamic load rating	C	96 kN
Basic static load rating	C0	79 kN
Fatigue load limit	Pu	10.4 kN
Reference speed	nref	7100 r/min
Limiting speed	nG	14200 r/min
Mass	≈m	0.763 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	E	Increased Capacity Design
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	40 mm1.575 in
Outside diameter	D	90 mm3.543 in
Width	B	23 mm0.906 in
Basic dynamic load rating, radial	Cr	96,000 N21,582.734 lbf
Basic static load rating, radial	C0r	79,000 N17,760.791 lbf
Fatigue load limit, radial	Cur	10,400 N2,338.129 lbf
Limiting speed	nG	14,200 1/min
Reference speed	nϑr	7,100 1/min
Mass	≈m	0.763 kg1.682 lbs

Mounting dimensions6 parameters

Mounting dimensions
Parameter	Symbol	Value
Minimum diameter shaft shoulder	da min	49 mm1.929 in
Maximum diameter of shaft shoulder	da max	51 mm2.008 in
Minimum shaft shoulder	db min	55 mm2.165 in
Maximum diameter of housing shoulder	Da max	81 mm3.189 in
Maximum recess radius	ra max	1.5 mm0.059 in
Maximum recess radius	ra1 max	1.5 mm0.059 in

Dimensions6 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension	rmin	1.5 mm0.059 in
Minimum chamfer dimension	r1 min	1.5 mm0.059 in
Axial displacement	s	1.3 mm0.051 in
Raceway diameter outer ring	E	80 mm3.15 in
Raceway diameter inner ring	F	52 mm2.047 in
Minimum rib diameter outer ring	D1 min	75.92 mm2.989 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 & suitability4 parameters

Capabilities & suitability
Parameter	Symbol	Value
Radial load capacity		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 NU..-E-XL-M1, with cage, single row, non-locating bearing, 2 ribs on outer ring, 0 ribs on inner ring (smooth), type NU, Running accuracy in P6
Short Description		Cylindrical roller bearing

Technical Data22 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		40 mm
Outside Diamater (D)		90 mm
Total Width (B)		23 mm
Basic Dynamic Load Rating, Radial (Cr)		96,000 N
Basic Static Load Rating, Radial (C0R)		79,000 N
Raceway Diameter Inner Ring (F)		52 mm
Operating Temperature Min. (Tmin)		-30 °C
Minimum Diameter Shaft Shoulder (Da)		49 mm
Operating Temperature Max. (Tmax)		150 °C
Limiting Speed (Limiting Spe)		14,200 1/min
Reference Speed (Nϑr)		7,100 1/min
Maximum Recess Radius (Ra Max)		1.5 mm
Maximum Diameter Of Housing Shoulder (Da)		81 mm
Minimum Chamfer Dimension (R1 Min)		1.5 mm
Axial Displacement (S)		1.3 mm
Minimum Rib Diameter Outer Ring (D1 Min)		75.92 mm
Maximum Diameter Of Shaft Shoulder (Da Max)		51 mm
Maximum Recess Radius (Ra1 Max)		1.5 mm
Minimum Chamfer Dimension (Rmin)		1.5 mm
Raceway Diameter Outer Ring (E)		80 mm
Minimum Shaft Shoulder (Db Min)		55 mm
Fatigue Load Limit, Radial (Cur)		10,400 N