Product specifications

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

Core specifications12 parameters

Core specifications
Parameter	Symbol	Value
Series		K390-394
Bore diameter	d	63.5 mm
Outside diameter	D	110 mm
Width	B	22 mm
Basic dynamic load rating	C	83 kN
Basic static load rating	C0	108 kN
Fatigue load limit	Pu	13.1 kN
Mass	≈m	0.85 kg
Precision class		ABMA4 — Class 4 (ANSI/ABMA 19.2:2013)
Cage		Standard — Sheet steel cage, window cage, roller-guided
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	120 °C

Product characteristics6 parameters

Product characteristics
Parameter	Symbol	Value
Tolerance class	ABMA4	Class 4 (ANSI/ABMA 19.2:2013)
Heat treatment	W60C	Carbonitrided
Cage	Standard	Sheet steel cage, window cage, roller-guided
Internal design		Standard
Quality level		Standard
Number of rows	1	Single-row design

Main Dimensions & Performance Data9 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	63.5 mm2.5 in
Outside diameter	D	110 mm4.331 in
Width, inner ring	B	21.996 mm0.866 in
Width, outer ring	C	18.824 mm0.741 in
Width, total	T	22 mm0.866 in
Basic dynamic load rating, radial	Cr	83,000 N18,660.072 lbf
Basic static load rating, radial	C0r	108,000 N24,280.576 lbf
Fatigue load limit, radial	Cur	13,100 N2,945.144 lbf
Mass	≈m	0.85 kg1.874 lbs

Mounting dimensions9 parameters

Mounting dimensions
Parameter	Symbol	Value
Maximum diameter of shaft shoulder	da max	73 mm2.874 in
Minimum diameter of shaft shoulder	db min	73 mm2.874 in
Minimum diameter of housing shoulder	Da min	101 mm3.976 in
Maximum diameter of housing shoulder	Da max	104 mm4.094 in
Minimum diameter of housing shoulder	Db min	104 mm4.094 in
Minimum axial space	Ca min	4.5 mm0.177 in
Minimum axial space	Cb min	2 mm0.079 in
Maximum fillet radius of shaft	ra max	1.5 mm0.059 in
Maximum fillet radius of housing	rb max	1.3 mm0.051 in

Dimensions3 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension of inner ring back face	r1, 2 min	1.5 mm0.059 in
Minimum chamfer dimension of outer ring back face	r3, 4 min	1.3 mm0.051 in
Distance between the apexes of the pressure cones	a	21 mm0.827 in

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	120 °C248 °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 Identity4 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Tapered roller bearings K-Series, in inch sizes, separable
Short Description		Tapered roller bearing

Technical Data22 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		63.5 mm
Outside Diameter (D)		110 mm
Width (B)		22 mm
Basic Dynamic Load Rating, Radial (Cr)		83,000 N
Basic Static Load Rating, Radial (C0R)		108,000 N
Operating Temperature Min. (Tmin)		-30 °C
Operating Temperature Max. (Tmax)		120 °C
Maximum Fillet Radius Of Housing (Rb Max)		1.3 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)		1.3 mm
Minimum Diameter Of Housing Shoulder (Da Min)		101 mm
Minimum Diameter Of Housing Shoulder (Db Min)		104 mm
Width, Outer Ring (C)		18.824 mm
Fatigue Load Limit, Radial (Cur)		13,100 N
Maximum Diameter Of Shaft Shoulder (Da Max)		73 mm
Minimum Diameter Of Shaft Shoulder (Db Min)		73 mm
Maximum Diameter Of Housing Shoulder (Da Max)		104 mm
Maximum Fillet Radius (Ra Max)		1.5 mm
Minimum Axial Space (Cb Min)		2 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)		1.5 mm
Minimum Axial Space (Ca Min)		4.5 mm
Width, Inner Ring (B)		21.996 mm
Distance Between The Apexes Of The Pressure Cones (A)		21 mm

FAG K390-A-394-A-DY-W60C