Timken 8578 – 8520 (Y2S-8520)
Tapered Roller Bearings - 2TS-DM (Matched Bearing Assembly, Direct Mount)
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
8578 – 8520 (Y2S-8520)
Specifications
Cone Part Number
8578
Cup Part Number
8520
Related Assembly Number(s)
8578-90198
Outer Spacer Part Number
Y2S-8520
Design Unit
Inch
Dimensions
d - Bore
241.300 mm
D - Cup Outer Diameter
327.025 mm
T - Width
104.775 mm
B - Width
104.775 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
db - Cone Backface Backing Diameter
264 mm
Da - Cup Frontface Backing Diameter
314.96 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
137000 N
C1 - Dynamic Radial Rating (1 million revolutions)4
918000 N
C5
95200 N
C906
238000 N
Factors
K - Factor7
1.44
e - ISO Factor8
0.41
Y1 - ISO Factor9
1.66
Y2 - ISO Factor10
2.47
Similar to product
8578 – 8520 (Y2S-8520)
