Timken 12580 – 12520 (Y1S-12520)
Tapered Roller Bearings - 2TS-DM (Matched Bearing Assembly, Direct Mount)
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
12580 – 12520 (Y1S-12520)
Specifications
Cone Part Number
12580
Cup Part Number
12520
Related Assembly Number(s)
12580-90025
Outer Spacer Part Number
Y1S-12520
Design Unit
Inch
Dimensions
d - Bore
20.638 mm
D - Cup Outer Diameter
49.225 mm
T - Width
39.69 mm
B - Width
39.69 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.3 mm
r - Cup Backface "To Clear" Radius2
1.52 mm
db - Cone Backface Backing Diameter
28.5 mm
Da - Cup Frontface Backing Diameter
45.97 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
11300 N
C1 - Dynamic Radial Rating (1 million revolutions)4
76000 N
C5
6260 N
C906
19700 N
Factors
K - Factor7
1.81
e - ISO Factor8
0.32
Y1 - ISO Factor9
2.09
Y2 - ISO Factor10
3.11
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12580 – 12520 (Y1S-12520)
