TIMKEN 25580-25521-B Bearing

TIMKEN 25580-25521-B tapered bearings with Flange

Also known as : 25580-25521-B

  • Inside Diameter: 44.45 mm
  • Outside Diameter: 83.058 mm
  • Width: 8.733 mm
  • Basic dynamic load rating: 90.5 kN
  • Basic static load rating: 111 kN

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TIMKEN 25580-25521-B Bearing

TIMKEN 25580-25521-B Bearing details

Series 25500
model 25580-25521-B
Cone Part Number 25580
Cup Part Number 25521-B
Design Units Imperial
Cage Type Stamped Steel
Bearing Weight 0.700 Kg
1.50 lb
Dimensions
d - Bore 44.450 mm
1.7500 in
D - Cup Outer Diameter 83.058 mm
3.2700 in
D1 - Flange Outer Diameter 86.919 mm
3.4220 in
B - Cone Width 25.400 mm
1.0000 in
C - Cup Width 19.050 mm
0.7500 in
C1 - Cup Flange Width 3.970 mm
0.1563 in
T - Bearing Width to Flange 8.733 mm
0.3438 in
T1 - Bearing Width 23.813 mm
0.9375 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius 3.600 mm
0.14 in
r - Cup Backface "To Clear" Radius 3.30 mm
0.130 in
da - Cone Frontface Backing Diameter 50 mm
1.97 in
db - Cone Backface Backing Diameter 56.90 mm
2.24 in
Da - Cup Frontface Backing Diameter 80.01 mm
3.18 in
Ab - Cage-Cone Frontface Clearance 1.5 mm
0.06 in
Aa - Cage-Cone Backface Clearance 0.3 mm
0.01 in
a - Effective Center Location -6.4 mm
-0.25 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions) 23500 N
5270 lbf
C1 - Dynamic Radial Rating (1 million revolutions) 90500 N
20300 lbf
C0 - Static Radial Rating 111000 N
24900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions) 13500 N
3020 lbf
Factors
K - Factor 1.74
e - ISO Factor 0.33
Y - ISO Factor 1.79
G1 - Heat Generation Factor (Roller-Raceway) 35.2
G2 - Heat Generation Factor (Rib-Roller End) 14.3
Cg - Geometry Factor 0.0801

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 25580-25521-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.

TIMKEN bearing cross reference

TIMKEN 25580-25520D bearing
44.450mm x 82.931mm x 57.150mm
TIMKEN 25580-25520DC bearing
44.450mm x 82.931mm x 57.150mm