TIMKEN 25576-25521-B Bearing

TIMKEN 25576-25521-B tapered bearings with Flange

Also known as : 25576-25521-B

• Inside Diameter: 42.863 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 25576-25521-B Bearing

Series	25500
model	25576-25521-B
Cone Part Number	25576
Cup Part Number	25521-B
Design Units	Imperial
Cage Type	Stamped Steel
Bearing Weight	0.700 Kg 1.50 lb
Dimensions
d - Bore	42.863 mm 1.6875 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	49 mm 1.93 in
db - Cone Backface Backing Diameter	55.10 mm 2.17 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 25576-25521-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.