TIMKEN 2578-2523-B Bearing

TIMKEN 2578-2523-B tapered bearings with Flange

Also known as : 2578-2523-B

  • Inside Diameter: 28.575 mm
  • Outside Diameter: 69.85 mm
  • Width: 8.733 mm
  • Basic dynamic load rating: 83.7 kN
  • Basic static load rating: 94.4 kN

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TIMKEN 2578-2523-B Bearing

TIMKEN 2578-2523-B Bearing details

Series 2500
model 2578-2523-B
Cone Part Number 2578
Cup Part Number 2523-B
Design Units Imperial
Cage Type Stamped Steel
Bearing Weight 0.300 Kg
0.70 lb
Dimensions
d - Bore 28.575 mm
1.1250 in
D - Cup Outer Diameter 69.850 mm
2.7500 in
D1 - Flange Outer Diameter 73.711 mm
2.9020 in
B - Cone Width 25.357 mm
0.9983 in
C - Cup Width 19.050 mm
0.7500 in
C1 - Cup Flange Width 3.962 mm
0.1560 in
T - Bearing Width to Flange 8.733 mm
0.3438 in
T1 - Bearing Width 23.820 mm
0.9378 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius 2.300 mm
0.090 in
r - Cup Backface "To Clear" Radius 1.5 mm
0.06 in
da - Cone Frontface Backing Diameter 35.10 mm
1.38 in
db - Cone Backface Backing Diameter 39.10 mm
1.54 in
Da - Cup Frontface Backing Diameter 66.04 mm
2.62 in
Ab - Cage-Cone Frontface Clearance 1.5 mm
0.06 in
Aa - Cage-Cone Backface Clearance 0.5 mm
0.02 in
a - Effective Center Location -8.6 mm
-0.34 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions) 21700 N
4880 lbf
C1 - Dynamic Radial Rating (1 million revolutions) 83700 N
18800 lbf
C0 - Static Radial Rating 94400 N
21200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions) 10200 N
2280 lbf
Factors
K - Factor 2.14
e - ISO Factor 0.27
Y - ISO Factor 2.19
G1 - Heat Generation Factor (Roller-Raceway) 23.6
G2 - Heat Generation Factor (Rib-Roller End) 9.63
Cg - Geometry Factor 0.0656

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 2578-2523-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.

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