TIMKEN 8578-8520-B Bearing

TIMKEN 8578-8520-B tapered bearings with Flange

Also known as : 8578-8520-B

  • Inside Diameter: 241.3 mm
  • Outside Diameter: 327.025 mm
  • Width: 25.4 mm
  • Basic dynamic load rating: 527 kN
  • Basic static load rating: 1070 kN

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TIMKEN 8578-8520-B Bearing

TIMKEN 8578-8520-B Bearing details

Series 8500
model 8578-8520-B
Cone Part Number 8578
Cup Part Number 8520-B
Design Units Imperial
Cage Type Stamped Steel
Bearing Weight 11.80 Kg
26.10 lb
Dimensions
d - Bore 241.300 mm
9.5000 in
D - Cup Outer Diameter 327.025 mm
12.875 in
D1 - Flange Outer Diameter 336.448 mm
13.2460 in
B - Cone Width 52.388 mm
2.0625 in
C - Cup Width 36.513 mm
1.4375 in
C1 - Cup Flange Width 9.525 mm
0.3750 in
T - Bearing Width to Flange 25.400 mm
1.0000 in
T1 - Bearing Width 52.388 mm
2.0625 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius 6.400 mm
0.25 in
r - Cup Backface "To Clear" Radius 3.30 mm
0.130 in
da - Cone Frontface Backing Diameter 253 mm
9.96 in
db - Cone Backface Backing Diameter 263.90 mm
10.39 in
Da - Cup Frontface Backing Diameter 312.93 mm
12.40 in
Ab - Cage-Cone Frontface Clearance 3.3 mm
0.13 in
Aa - Cage-Cone Backface Clearance 6.1 mm
0.24 in
a - Effective Center Location 7.6 mm
0.3 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions) 137000 N
30700 lbf
C1 - Dynamic Radial Rating (1 million revolutions) 527000 N
119000 lbf
C0 - Static Radial Rating 1070000 N
240000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions) 95200 N
21400 lbf
Factors
K - Factor 1.44
e - ISO Factor 0.41
Y - ISO Factor 1.48
G1 - Heat Generation Factor (Roller-Raceway) 1050
G2 - Heat Generation Factor (Rib-Roller End) 172
Cg - Geometry Factor 0.140

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 8578-8520-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.