Product specifications

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

Core specifications14 parameters

Core specifications
Parameter	Symbol	Value
Series		QJ310
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Basic dynamic load rating	C	115 kN
Basic static load rating	C0	92 kN
Fatigue load limit	Pu	6.8 kN
Reference speed	nref	5400 r/min
Limiting speed	nG	12500 r/min
Mass	≈m	1.308 kg
Precision class		PN — Normal (ISO 492:2023)
Cage		MPA — Solid brass cage, outer ring guided
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	150 °C

Product characteristics5 parameters

Product characteristics
Parameter	Symbol	Value
Design, bearing outer ring	N2	Two retaining grooves in the outer ring on one side
Tolerance class	PN	Normal (ISO 492:2023)
Cage	MPA	Solid brass cage, outer ring guided
Dimensional / heat stabilization	S0	Rings dimensional stabilized up to 150°
Axial internal clearance	CN	Group N (CN)

Main Dimensions & Performance Data9 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	50 mm1.969 in
Outside diameter	D	110 mm4.331 in
Width	B	27 mm1.063 in
Basic dynamic load rating, radial	Cr	115,000 N25,854.317 lbf
Basic static load rating, radial	C0r	92,000 N20,683.453 lbf
Fatigue load limit, radial	Cur	6,800 N1,528.777 lbf
Limiting speed	nG	12,500 1/min
Reference speed	nϑr	5,400 1/min
Mass	≈m	1.308 kg2.884 lbs

Mounting dimensions3 parameters

Mounting dimensions
Parameter	Symbol	Value
Minimum diameter shaft shoulder	da min	61 mm2.402 in
Maximum diameter of housing shoulder	Da max	99 mm3.898 in
Maximum fillet radius	ra max	2 mm0.079 in

Dimensions9 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension	rmin	2 mm0.079 in
Shoulder diameter outer ring	D1	89.55 mm3.526 in
Shoulder diameter inner ring	d1	70.5 mm2.776 in
Distance between the apexes of the pressure cones	a	56 mm2.205 in
Hight retaining slot	an	5 mm0.197 in
Width retaining slot	bn	6.5 mm0.256 in
Radius retaining slot	rn	0.5 mm0.02 in
Angle retaining slot		45 °
Contact angle	α	35 °

Temperature range2 parameters

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

Capabilities & suitability6 parameters

Capabilities & suitability
Parameter	Symbol	Value
Radial load capacity		Yes
Axial load capacity in one direction		Yes
Axial load capacity in both directions		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		Four point contact bearing QJ3..-XL-N2-MPA, X-life, holding grooves, solid brass cage
Short Description		Four-point contact bearing

Technical Data22 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		50 mm
Outside Diameter (D)		110 mm
Width (B)		27 mm
Basic Dynamic Load Rating, Radial (Cr)		115,000 N
Basic Static Load Rating, Radial (C0R)		92,000 N
Operating Temperature Min. (Tmin)		-30 °C
Limiting Speed (Ng)		12,500 1/min
Operating Temperature Max. (Tmax)		150 °C
Reference Speed (Nϑr)		5,400 1/min
Angle Retaining Slot (Angle Retain)		45 °
Hight Retaining Slot (An)		5 mm
Radius Retaining Slot (Rn)		0.5 mm
Fatigue Load Limit, Radial (Cur)		6,800 N
Minimum Diameter Shaft Shoulder (Da Min)		61 mm
Shoulder Diameter Inner Ring (D1)		70.5 mm
Maximum Diameter Of Housing Shoulder (Da Max)		99 mm
Minimum Chamfer Dimension (Rmin)		2 mm
Maximum Fillet Radius (Ra Max)		2 mm
Shoulder Diameter Outer Ring (D1)		89.55 mm
Contact Angle (Α)		35 °
Distance Between The Apexes Of The Pressure Cones (A)		56 mm
Width Retaining Slot (Bn)		6.5 mm

FAG QJ310-XL-N2-MPA