Timken 30305
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
30305M
Cone Part Number
X30305M
Cup Part Number
Y30305M
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
30305M-90KM1
Dimensions
d - Bore
25 mm
D - Cup Outer Diameter
62 mm
B - Cone Width
17.000 mm
C - Cup Width
15.000 mm
T - Bearing Width
18.250 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
1.520 mm
r - Cup Backface "To Clear" Radius2
1.52 mm
da - Cone Frontface Backing Diameter
32.5 mm
db - Cone Backface Backing Diameter
34.5 mm
Da - Cup Frontface Backing Diameter
57.66 mm
Db - Cup Backface Backing Diameter
55.12 mm
Ab - Cage-Cone Frontface Clearance
3.3 mm
Aa - Cage-Cone Backface Clearance
-0.5 mm
a - Effective Center Location3
-5.1 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
13900 N
C1 - Dynamic Radial Rating (1 million revolutions)5
53800 N
C0 - Static Radial Rating
49600 N
C6
7160 N
Factors
K - Factor7
1.95
e - ISO Factor8
0.3
Y - ISO Factor9
2
G1 - Heat Generation Factor (Roller-Raceway)
11.8
G2 - Heat Generation Factor (Rib-Roller End)
8.5
Cg - Geometry Factor10
0.0532
