TIMKEN 478-472-B Bearing

TIMKEN 478-472-B tapered bearings with Flange

Also known as : 478-472-B

• Inside Diameter: 65.001 mm
• Outside Diameter: 120 mm
• Width: 11.095 mm
• Basic dynamic load rating: 143 kN
• Basic static load rating: 186 kN

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TIMKEN 478-472-B Bearing

Series	475
model	478-472-B
Cone Part Number	478
Cup Part Number	472-B
Design Units	Imperial
Cage Type	Stamped Steel
Bearing Weight	1.500 Kg 3.30 lb
Dimensions
d - Bore	65.001 mm 2.5591 in
D - Cup Outer Diameter	120.000 mm 4.7244 in
D1 - Flange Outer Diameter	125.435 mm 4.9384 in
B - Cone Width	29.007 mm 1.1420 in
C - Cup Width	24.237 mm 0.9542 in
C1 - Cup Flange Width	5.537 mm 0.2180 in
T - Bearing Width to Flange	11.095 mm 0.4368 in
T1 - Bearing Width	29.794 mm 1.1730 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	2.300 mm 0.090 in
r - Cup Backface "To Clear" Radius	0.80 mm 0.030 in
da - Cone Frontface Backing Diameter	72.9 mm 2.87 in
db - Cone Backface Backing Diameter	77 mm 3.03 in
Da - Cup Frontface Backing Diameter	115.82 mm 4.56 in
Ab - Cage-Cone Frontface Clearance	3 mm 0.12 in
Aa - Cage-Cone Backface Clearance	1 mm 0.04 in
a - Effective Center Location	-4.1 mm -0.16 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	37200 N 8360 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	143000 N 32200 lbf
C0 - Static Radial Rating	186000 N 41900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)	24500 N 5500 lbf
Factors
K - Factor	1.52
e - ISO Factor	0.38
Y - ISO Factor	1.56
G1 - Heat Generation Factor (Roller-Raceway)	77.2
G2 - Heat Generation Factor (Rib-Roller End)	23
Cg - Geometry Factor	0.108

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 478-472-B bearings in stock, TSF (Tapered Single with Flange) Imperial , Tapered roller bearings.

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.