TIMKEN 67780 - 67720-B | Tapered Roller Bearings - TSF

TIMKEN Bearing 67780 - 67720-B

Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.

Material: Bearing steels

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Specifications Product Description Literature & catalogs Videos Substitute products You may also like

Specifications of TIMKEN Bearing 67780 - 67720-B

Specifications

Series	67700
Cone Part Number	67780
Cup Part Number	67720-B
Design Unit	Inch
Bearing Weight	18.7 lb8.5 Kg
Cage Material	Stamped Steel

Dimensions

d – Bore	6 1/2 in165.1 mm
D – Cup Outer Diameter	9.75 in247.65 mm
D1 – Flange Outer Diameter	10.0272 in254.691 mm
B – Cone Width	1.875 in47.625 mm
C – Cup Width	1.5000 in38.100 mm
C1 – Cup Flange Width	0.2813 in7.145 mm
T1 – Bearing Width to Flange	0.6563 in16.670 mm

Abutment and Fillet Dimensions

R – Cone Backface “To Clear” Radius¹	0.14 in3.6 mm
r – Cup Backface “To Clear” Radius²	0.130 in3.3 mm
da – Cone Frontface Backing Diameter	7.05 in179 mm
db – Cone Backface Backing Diameter	7.28 in185 mm
Da – Cup Frontface Backing Diameter	9.52 in241.80 mm
Ab – Cage-Cone Frontface Clearance	0.11 in2.8 mm
Aa – Cage-Cone Backface Clearance	0.17 in4.3 mm
a – Effective Center Location³	0.19 in4.8 mm

Basic Load Ratings

C90 – Dynamic Radial Rating (90 million revolutions)⁴	23600 lbf105000 N
C1 – Dynamic Radial Rating (1 million revolutions)⁵	91100 lbf405000 N
C0 – Static Radial Rating	175000 lbf779000 N
C_a90 – Dynamic Thrust Rating (90 million revolutions)⁶	17800 lbf79000 N

Factors

K – Factor⁷	1.33
e – ISO Factor⁸	0.44
Y – ISO Factor⁹	1.36
G1 – Heat Generation Factor (Roller-Raceway)	622.3
G2 – Heat Generation Factor (Rib-Roller End)	122.6
Cg – Geometry Factor¹⁰	0.121

Literature & catalogs

TIMKEN -LUBRICATION

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TIMKEN -TYPE- TDI

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TIMKEN-TAPERED ROLLER BEARING CAGES

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TIMKEN-TYPE- TS

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Videos

TIMKEN

Timken Tricks of the Trade – Installing a Timken® Set Right® Bearing

Timken Stronger By Design

Timken Tricks of the Trade Wheel End Bearing Removal Tips

TIMKEN Bearing 67780 - 67720-B