- Timken World
- Contact
- Where to buy
-
- English
- 简体中文 (Chinese (Simplified))
- Français (French)
- Deutsch (German)
- Italiano (Italian)
- 日本語 (Japanese)
- 한국어 (Korean)
- Polski (Polish)
- Português (Portuguese (Brazil))
- Română (Romanian)
- Русский (Russian)
- Español (Spanish)
- Türkçe (Turkish)
- Engineering Tools
Menu
Batch CAD Cart (0) ▾
Request 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.
Unit of Measure
Specifications | Dimensions | Abutment and Fillet Dimensions | Basic Load Ratings | Factors
Specifications
Series | N/A 6400 |
Cone Part Number | N/A 6461A |
Cup Part Number | N/A 6420 |
Design Unit | N/A Inch |
Cage Material | N/A Stamped Steel |
Dimensions
d - Bore | N/A 3 in76.2 mm |
D - Cup Outer Diameter | N/A 5.8750 in149.225 mm |
B - Cone Width | N/A 2.1350 in54.229 mm |
C - Cup Width | N/A 1.7500 in44.450 mm |
T - Bearing Width | N/A 2.1250 in53.975 mm |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 | N/A 0.380 in9.700 mm |
| r - Cup Backface "To Clear" Radius2 | N/A 0.130 in3.30 mm |
da - Cone Frontface Backing Diameter | N/A 3.52 in89 mm |
db - Cone Backface Backing Diameter | N/A 4.25 in108 mm |
Da - Cup Frontface Backing Diameter | N/A 5.55 in140 mm |
Db - Cup Backface Backing Diameter | N/A 5.08 in129.03 mm |
Ab - Cage-Cone Frontface Clearance | N/A 0.06 in1.5 mm |
Aa - Cage-Cone Backface Clearance | N/A 0.09 in2.3 mm |
| a - Effective Center Location3 | N/A -0.59 in-15 mm |
Basic Load Ratings
| C90 - Dynamic Radial Rating (90 million revolutions)4 | N/A 24000 lbf107000 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | N/A 92400 lbf411000 N |
C0 - Static Radial Rating | N/A 104000 lbf463000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | N/A 14800 lbf66000 N |
Factors
| K - Factor7 | N/A 1.61 |
| e - ISO Factor8 | N/A 0.36 |
| Y - ISO Factor9 | N/A 1.66 |
G1 - Heat Generation Factor (Roller-Raceway) | N/A 158 |
G2 - Heat Generation Factor (Rib-Roller End) | N/A 29.1 |
| Cg - Geometry Factor10 | N/A 0.0931 |
- 1 These maximum fillet radii will be cleared by the bearing corners.
- 2 These maximum fillet radii will be cleared by the bearing corners.
- 3 Negative value indicates effective center inside cone backface.
- 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 6 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.
- 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 10 Geometry constant for Lubrication Life Adjustment Factor a3l.
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.
This website or its third-party tools use cookies. If you want to know more or to change your cookie settings on your computer or device, please see our cookie policy. By closing this banner, or continuing to use this website, you consent to the use of cookies.
Cookie Policy
Accept Decline
