Timken X30203 – Y30203
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
30203
Cone Part Number
X30203
Cup Part Number
Y30203
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
30203-90KA1
Dimensions
d - Bore
17 mm
D - Cup Outer Diameter
40 mm
B - Cone Width
12.000 mm
C - Cup Width
11.000 mm
T - Bearing Width
13.250 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
1.020 mm
r - Cup Backface "To Clear" Radius2
1.02 mm
da - Cone Frontface Backing Diameter
21 mm
db - Cone Backface Backing Diameter
22 mm
Da - Cup Frontface Backing Diameter
37.59 mm
Db - Cup Backface Backing Diameter
35.05 mm
Ab - Cage-Cone Frontface Clearance
2 mm
Aa - Cage-Cone Backface Clearance
-0.3 mm
a - Effective Center Location3
-3.6 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
5530 N
C1 - Dynamic Radial Rating (1 million revolutions)5
21300 N
C0 - Static Radial Rating
19900 N
C6
3270 N
Factors
K - Factor7
1.69
e - ISO Factor8
0.35
Y - ISO Factor9
1.74
G1 - Heat Generation Factor (Roller-Raceway)
4.2
G2 - Heat Generation Factor (Rib-Roller End)
6
Cg - Geometry Factor10
0.0398
