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	360 mm
Width	B	63.5 mm
Basic dynamic load rating	C	750 kN
Basic static load rating	C0	1500 kN
Fatigue load limit	Pu	164 kN
Reference speed	nref	1000 r/min
Limiting speed	nG	1780 r/min
Mass	≈m	18.5 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	360 mm14.173 in
Width, inner ring	B	63.5 mm2.5 in
Width, outer ring	C	48 mm1.89 in
Width, total	T	63.5 mm2.5 in
Basic dynamic load rating, radial	Cr	750,000 N168,615.108 lbf
Basic static load rating, radial	C0r	1,500,000 N337,230.216 lbf
Fatigue load limit, radial	Cur	164,000 N36,870.504 lbf
Limiting speed	nG	1,780 1/min
Thermal speed rating	nϑr	1,000 1/min
Mass	≈m	18.5 kg40.785 lbs

Mounting dimensions9 parameters

Mounting dimensions
Parameter	Symbol	Value
Maximum diameter of shaft shoulder	da max	279 mm10.984 in
Minimum diameter of shaft shoulder	db min	272 mm10.709 in
Minimum diameter of housing shoulder	Da min	328 mm12.913 in
Maximum diameter of housing shoulder	Da max	348 mm13.701 in
Minimum diameter of housing shoulder	Db min	347 mm13.661 in
Minimum axial space	Ca min	11 mm0.433 in
Minimum axial space	Cb min	15.5 mm0.61 in
Maximum fillet radius of shaft	ra max	3 mm0.118 in
Maximum fillet radius of housing	rb max	2.5 mm0.098 in

Dimensions4 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension of inner ring back face	r1, 2 min	3 mm0.118 in
Minimum chamfer dimension of outer ring back face	r3, 4 min	2.5 mm0.098 in
Distance between the apexes of the pressure cones	a	70 mm2.756 in
Guidance rib diameter of inner ring	d1	309 mm12.165 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	0.41
Dynamic axial load factor	Y	1.48
Static axial load factor	Y0	0.81

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 Identity8 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Tapered roller bearings 329, main dimensions acc. to DIN 720, separable
Short Description		Tapered roller bearing

Additional information1 parameter

Additional information
Parameter	Symbol	Value
Comparative designation to ISO 10317 and ISO 355		T3EC260

Technical Data28 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		260 mm
Outside Diameter (D)		360 mm
Width (B)		63.5 mm
Basic Dynamic Load Rating, Radial (Cr)		750,000 N
Basic Static Load Rating, Radial (C0R)		1,500,000 N
Operating Temperature Min. (Tmin)		-30 °C
Limiting Speed (Ng)		1,780 1/min
Operating Temperature Max. (Tmax)		200 °C
Reference Speed (Nϑr)		1,000 1/min
Maximum Fillet Radius Of Housing (Rb Max)		2.5 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)		2.5 mm
Minimum Diameter Of Housing Shoulder (Da Min)		328 mm
Minimum Diameter Of Housing Shoulder (Db Min)		347 mm
Width, Outer Ring (C)		48 mm
Fatigue Load Limit, Radial (Cur)		164,000 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)		0.41
Maximum Diameter Of Shaft Shoulder (Da Max)		279 mm
Minimum Diameter Of Shaft Shoulder (Db Min)		272 mm
Maximum Diameter Of Housing Shoulder (Da Max)		348 mm
Dynamic Axial Load Factor (Y)		1.48
Maximum Fillet Radius (Ra Max)		3 mm
Minimum Axial Space (Cb Min)		15.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)		3 mm
Guidance Rib Diameter Of Inner Ring (D1)		309 mm
Minimum Axial Space (Ca Min)		11 mm
Width, Inner Ring (B)		63.5 mm
Static Axial Load Factor (Y0)		0.81
Distance Between The Apexes Of The Pressure Cones (A)		70 mm

FAG 32952