Timken X30308 – Y30308
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
30308
Cone Part Number
X30308M
Cup Part Number
Y30308M
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
30308-90KA4
Dimensions
d - Bore
40 mm
D - Cup Outer Diameter
90 mm
B - Cone Width
23.000 mm
C - Cup Width
20.000 mm
T - Bearing Width
25.250 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
2.030 mm
r - Cup Backface "To Clear" Radius2
1.52 mm
da - Cone Frontface Backing Diameter
46.5 mm
db - Cone Backface Backing Diameter
50 mm
Da - Cup Frontface Backing Diameter
84.10 mm
Db - Cup Backface Backing Diameter
80.01 mm
Ab - Cage-Cone Frontface Clearance
3.6 mm
Aa - Cage-Cone Backface Clearance
1.3 mm
a - Effective Center Location3
-5.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
30300 N
C1 - Dynamic Radial Rating (1 million revolutions)5
117000 N
C0 - Static Radial Rating
102000 N
C6
17900 N
Factors
K - Factor7
1.69
e - ISO Factor8
0.35
Y - ISO Factor9
1.74
G1 - Heat Generation Factor (Roller-Raceway)
30.1
G2 - Heat Generation Factor (Rib-Roller End)
11.6
Cg - Geometry Factor10
0.0762
