TIMKEN 48385 - 48320-B | Tapered Roller Bearings - TSF

TIMKEN Bearing 48385 - 48320-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 48385 - 48320-B

Specifications

Series	48300
Cone Part Number	48385
Cup Part Number	48320-B
Design Unit	Inch
Bearing Weight	7.9 lb3.6 Kg
Cage Material	Stamped Steel

Dimensions

d – Bore	5 1/4 in133.35 mm
D – Cup Outer Diameter	7.5 in190.5 mm
D1 – Flange Outer Diameter	7.7148 in195.956 mm
B – Cone Width	1.5625 in39.688 mm
C – Cup Width	1.3125 in33.338 mm
C1 – Cup Flange Width	0.2188 in5.558 mm
T1 – Bearing Width to Flange	0.4688 in11.908 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	5.59 in142 mm
db – Cone Backface Backing Diameter	5.83 in148 mm
Da – Cup Frontface Backing Diameter	7.36 in185.93 mm
Ab – Cage-Cone Frontface Clearance	0.08 in2 mm
Aa – Cage-Cone Backface Clearance	0.09 in2.3 mm
a – Effective Center Location³	-0.16 in-4.1 mm

Basic Load Ratings

C90 – Dynamic Radial Rating (90 million revolutions)⁴	16500 lbf73300 N
C1 – Dynamic Radial Rating (1 million revolutions)⁵	63600 lbf283000 N
C0 – Static Radial Rating	122000 lbf542000 N
C_a90 – Dynamic Thrust Rating (90 million revolutions)⁶	9060 lbf40300 N

Factors

K – Factor⁷	1.82
e – ISO Factor⁸	0.32
Y – ISO Factor⁹	1.87
G1 – Heat Generation Factor (Roller-Raceway)	403.8
G2 – Heat Generation Factor (Rib-Roller End)	105.1
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

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Timken Tricks of the Trade Wheel End Bearing Removal Tips

TIMKEN Bearing 48385 - 48320-B