Timken 30312
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
30312M
Cone Part Number
X30312M
Cup Part Number
Y30312M
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
30312-9X025
Dimensions
d - Bore
60 mm
D - Cup Outer Diameter
130 mm
B - Cone Width
31.000 mm
C - Cup Width
26.000 mm
T - Bearing Width
33.500 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.050 mm
r - Cup Backface "To Clear" Radius2
2.54 mm
da - Cone Frontface Backing Diameter
69 mm
db - Cone Backface Backing Diameter
74 mm
Da - Cup Frontface Backing Diameter
121.90 mm
Db - Cup Backface Backing Diameter
116.08 mm
Ab - Cage-Cone Frontface Clearance
4.8 mm
Aa - Cage-Cone Backface Clearance
1.8 mm
a - Effective Center Location3
-7.1 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
56500 N
C1 - Dynamic Radial Rating (1 million revolutions)5
218000 N
C0 - Static Radial Rating
221000 N
C6
33400 N
Factors
K - Factor7
1.69
e - ISO Factor8
0.35
Y - ISO Factor9
1.74
G1 - Heat Generation Factor (Roller-Raceway)
75.8
G2 - Heat Generation Factor (Rib-Roller End)
22.2
Cg - Geometry Factor10
0.0668
