Product specifications

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

Core specifications11 parameters

Core specifications
Parameter	Symbol	Value
Series		K387-382
Bore diameter	d	57.15 mm
Outside diameter	D	96.838 mm
Width	B	21 mm
Basic dynamic load rating	C	79 kN
Basic static load rating	C0	101 kN
Mass	≈m	0.59 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	150 °C

Product characteristics6 parameters

Product characteristics
Parameter	Symbol	Value
Tolerance class	ABMA4	Class 4 (ANSI/ABMA 19.2:2013)
Heat treatment	W61C	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 Data8 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	57.15 mm2.25 in
Outside diameter	D	96.838 mm3.813 in
Width, inner ring	B	21.946 mm0.864 in
Width, outer ring	C	15.875 mm0.625 in
Width, total	T	21 mm0.827 in
Basic dynamic load rating, radial	Cr	79,000 N17,760.791 lbf
Basic static load rating, radial	C0r	101,000 N22,706.835 lbf
Mass	≈m	0.59 kg1.301 lbs

Mounting dimensions8 parameters

Mounting dimensions
Parameter	Symbol	Value
Maximum diameter of shaft shoulder	da max	62 mm2.441 in
Minimum diameter of shaft shoulder	db min	69 mm2.717 in
Minimum diameter of housing shoulder	Da min	89 mm3.504 in
Minimum diameter of housing shoulder	Db min	92 mm3.622 in
Minimum axial space	Ca min	4 mm0.157 in
Minimum axial space	Cb min	5 mm0.197 in
Maximum fillet radius of shaft	ra max	3.6 mm0.142 in
Maximum fillet radius of housing	rb max	0.8 mm0.031 in

Dimensions4 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension of inner ring back face	r1, 2 min	3.6 mm0.142 in
Minimum chamfer dimension of outer ring back face	r3, 4 min	0.8 mm0.031 in
Distance between the apexes of the pressure cones	a	19 mm0.748 in
Guidance rib diameter of inner ring	d1	76.6 mm3.016 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 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 Data21 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		57.15 mm
Outside Diameter (D)		96.838 mm
Width (B)		21 mm
Basic Dynamic Load Rating, Radial (Cr)		79,000 N
Basic Static Load Rating, Radial (C0R)		101,000 N
Operating Temperature Min. (Tmin)		-30 °C
Operating Temperature Max. (Tmax)		150 °C
Maximum Fillet Radius Of Housing (Rb Max)		0.8 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)		0.8 mm
Minimum Diameter Of Housing Shoulder (Da Min)		89 mm
Minimum Diameter Of Housing Shoulder (Db Min)		92 mm
Width, Outer Ring (C)		15.875 mm
Maximum Diameter Of Shaft Shoulder (Da Max)		62 mm
Minimum Diameter Of Shaft Shoulder (Db Min)		69 mm
Maximum Fillet Radius (Ra Max)		3.6 mm
Minimum Axial Space (Cb Min)		5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)		3.6 mm
Guidance Rib Diameter Of Inner Ring (D1)		76.6 mm
Minimum Axial Space (Ca Min)		4 mm
Width, Inner Ring (B)		21.946 mm
Distance Between The Apexes Of The Pressure Cones (A)		19 mm

FAG K387-A-382-A-DY-W61C