TIMKEN SET3 Bearing Set Instructions
- June 1, 2024
- Timken
Table of Contents
TIMKEN SET3 Bearing Set
Important Information
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Specifications
| Series | M12600 |
|---|---|
| Cone Part Number | M12649 |
| Cup Part Number | M12610 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
Dimensions
| d – Bore | 0.8437 in 21.430 mm |
|---|
D – Cup Outer Diameter| 1.9687 in 50.005 mm
B – Cone Width| 0.7200 in 18.288 mm
C – Cup Width| 0.5500 in 13.970 mm
T – Bearing Width| 0.6900 in 17.526 mm
Abutment and Fillet Dimensions
| R – Cone Back face “To Clear” Radius 1 | 0.050 in 1.270 mm |
|---|---|
| r – Cup Back face “To Clear” Radius 2 | 0.050 in 1.27 mm |
| da – Cone Front face Backing Diameter | 1.08 in 27.5 mm |
| db – Cone Back face Backing Diameter | 1.16 in 29.5 mm |
| Da – Cup Front face Backing Diameter | 1.83 in 46.48 mm |
| Db – Cup Back face Backing Diameter | 1.73 in 43.94 mm |
| Ab – Cage-Cone Front face Clearance | 0.07 in 1.8 mm |
| Aa – Cage-Cone Back face Clearance | -0.01 in -0.3 mm |
| a – Effective Center Location 3 | -0.25 in -6.4 mm |
Basic Load Ratings
| C90 – Dynamic Radial Rating (90 million revolutions) 4 | 3040 lbf 13500 N |
|---|---|
| C1 – Dynamic Radial Rating (1 million revolutions) 5 | 11700 lbf 52200 N |
| C0 – Static Radial Rating | 9780 lbf 43500 N |
| Ca90 – Dynamic Thrust Rating (90 million revolutions) 6 | 1450 lbf 6440 N |
Factors
| K – Factor 7 | 2.1 |
|---|---|
| e – ISO Factor 8 | 0.28 |
| Y – ISO Factor 9 | 2.16 |
| G1 – Heat Generation Factor (Roller-Raceway) |
9.1
G2 – Heat Generation Factor (Rib-Roller End)| 5.63
Cg – Geometry Factor 10| 0.0479
- These maximum fillet radii will be cleared by the bearing corners.
- These maximum fillet radii will be cleared by the bearing corners.
- Negative value indicates effective center inside cone backface.
- Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
- These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- Geometry constant for Lubrication Life Adjustment Factor a3l.
IMPERIAL UNITS
ISO Factor – e 0.28
ISO Factor – Y 2.16
Bearing Weight 0.4 lb
Number of Rollers Per Row 14
Effective Center Location -0.25 inch
Every reasonable effort has been made to ensure the accuracy of the information contained in this writing, but no liability is accepted for errors, omissions or for any other reason.
M12649 – M12610
Tapered Roller Bearings – TS (Tapered Single) Imperial
K Factor 2.1
Dynamic Radial Rating – C90 3040 lbf
Dynamic Thrust Rating – Ca90 1450 lbf
Static Radial Rating – C0 9780 lbf
Dynamic Radial Rating – C1 11700 lbf
FOR DISCUSSION ONLY
Customer Support
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: 234-262-3000
E-Mail: CustomerCAD@timken.com •
Web site: www.timken.com
References
- Spider
- cad.timken.com/printitem/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/m12649-m12610?dlpdf=t#Abutment%20and%20Fillet%20Dimensions
- cad.timken.com/printitem/tapered-roller-bearings-ts-tapered-single-/tapered-roller-bearings-ts-tapered-single-imperi-2/m12649-m12610?dlpdf=t#Basic%20Load%20Ratings