Product specifications

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

Core specifications13 parameters

Core specifications
Parameter	Symbol	Value
Bore diameter	d	260 mm
Outside diameter	D	540 mm
Width	B	176 mm
Basic dynamic load rating	C	3150 kN
Basic static load rating	C0	4900 kN
Fatigue load limit	Pu	480 kN
Reference speed	nref	650 r/min
Limiting speed	nG	1240 r/min
Mass	≈m	175.52 kg
Precision class		PN — Normal (ISO 492:2023)
Cage		Standard — Sheet steel cage, window cage, roller-guided
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	200 °C

Product characteristics6 parameters

Product characteristics
Parameter	Symbol	Value
Tolerance class	PN	Normal (ISO 492:2023)
Heat treatment		Standard
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 Data11 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	260 mm10.236 in
Outside diameter	D	540 mm21.26 in
Width, inner ring	B	165 mm6.496 in
Width, outer ring	C	136 mm5.354 in
Width, total	T	176 mm6.929 in
Basic dynamic load rating, radial	Cr	3,150,000 N708,183.453 lbf
Basic static load rating, radial	C0r	4,900,000 N1,101,618.705 lbf
Fatigue load limit, radial	Cur	480,000 N107,913.669 lbf
Limiting speed	nG	1,240 1/min
Thermal speed rating	nϑr	650 1/min
Mass	≈m	175.52 kg386.955 lbs

Mounting dimensions9 parameters

Mounting dimensions
Parameter	Symbol	Value
Maximum diameter of shaft shoulder	da max	314 mm12.362 in
Minimum diameter of shaft shoulder	db min	324 mm12.756 in
Minimum diameter of housing shoulder	Da min	443 mm17.441 in
Maximum diameter of housing shoulder	Da max	510 mm20.079 in
Minimum diameter of housing shoulder	Db min	497 mm19.567 in
Minimum axial space	Ca min	19.5 mm0.768 in
Minimum axial space	Cb min	40 mm1.575 in
Maximum fillet radius of shaft	ra max	7.5 mm0.295 in
Maximum fillet radius of housing	rb max	6 mm0.236 in

Dimensions4 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension of inner ring back face	r1, 2 min	7.5 mm0.295 in
Minimum chamfer dimension of outer ring back face	r3, 4 min	6 mm0.236 in
Distance between the apexes of the pressure cones	a	124 mm4.882 in
Guidance rib diameter of inner ring	d1	374.5 mm14.744 in

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	200 °C392 °F

Calculation factors3 parameters

Calculation factors
Parameter	Symbol	Value
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y	e	0.35
Dynamic axial load factor	Y	1.74
Static axial load factor	Y0	0.96

Capabilities & suitability6 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
Largebearing		Yes

Manufacturer Identity8 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Tapered roller bearings 323, main dimensions acc. to DIN 720, separable
Short Description		Tapered roller bearing

Technical Data28 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		260 mm
Outside Diameter (D)		540 mm
Width (B)		176 mm
Basic Dynamic Load Rating, Radial (Cr)		3,150,000 N
Basic Static Load Rating, Radial (C0R)		4,900,000 N
Operating Temperature Min. (Tmin)		-30 °C
Limiting Speed (Ng)		1,240 1/min
Operating Temperature Max. (Tmax)		200 °C
Reference Speed (Nϑr)		650 1/min
Maximum Fillet Radius Of Housing (Rb Max)		6 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)		6 mm
Minimum Diameter Of Housing Shoulder (Da Min)		443 mm
Minimum Diameter Of Housing Shoulder (Db Min)		497 mm
Width, Outer Ring (C)		136 mm
Fatigue Load Limit, Radial (Cur)		480,000 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)		0.35
Maximum Diameter Of Shaft Shoulder (Da Max)		314 mm
Minimum Diameter Of Shaft Shoulder (Db Min)		324 mm
Maximum Diameter Of Housing Shoulder (Da Max)		510 mm
Dynamic Axial Load Factor (Y)		1.74
Maximum Fillet Radius (Ra Max)		7.5 mm
Minimum Axial Space (Cb Min)		40 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)		7.5 mm
Guidance Rib Diameter Of Inner Ring (D1)		374.5 mm
Minimum Axial Space (Ca Min)		19.5 mm
Width, Inner Ring (B)		165 mm
Static Axial Load Factor (Y0)		0.96
Distance Between The Apexes Of The Pressure Cones (A)		124 mm

FAG 32352