Timken
18590 / 18520
Single Row Tapered Roller Bearing Assembly | Imperial Series | 1.6250in Bore | 2.8750in OD | 0.6562in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2
UPC
0053893654355
Availability
Provides relative availability of the part with one bar representing less likely to be in stock and five bars representing more likely to be in stock. Contact Timken or authorized distributor for more precise availability in your region.
Key Features
- Available in single, double and multi-row configurations, as well as proprietary sizes
- Designed in collaboration with OE engineers to design, engineer and test bearings for premium performance in many applications
- Power dense designs allow for heavier loads and can help extend bearing life
- Optimized internal geometry lower torque and operating temperatures to extend lubrication system life
- Can be designed to withstand high-corrosive, high-temperature and vacuum or low-lubrication environments with proprietary enhancements
Helpful Links
Key Features
- Available in single, double and multi-row configurations, as well as proprietary sizes
- Designed in collaboration with OE engineers to design, engineer and test bearings for premium performance in many applications
- Power dense designs allow for heavier loads and can help extend bearing life
- Optimized internal geometry lower torque and operating temperatures to extend lubrication system life
- Can be designed to withstand high-corrosive, high-temperature and vacuum or low-lubrication environments with proprietary enhancements
Helpful Links
Bearing Data
Key Dimensions
| Parameters | Value | Units |
|---|---|---|
| Cone Part Number | 18590 | - |
| Cup Part Number | 18520 | - |
| Bore (d) | 1.6250 | in |
| O.D. (D) | 2.8750 | in |
| Width (T) | 0.6562 | in |
|
Dynamic Radial Load Rating - 1M Revs (C1)
The Timken basic dynamic radial load rating for an L10 life of 1 million revolutions
|
11,400 | lbf |
|
Dynamic Radial Load Rating - 90M Revs (C90)
The Timken basic dynamic radial load rating for an L10 life of 90 million revolutions
|
2,960 | lbf |
|
e Factor
Limiting value for Fa/ Fr for the applicability of different values of the factors X and Y in the dynamic equivalent radial load calculation
|
0.35 | - |
|
K Factor
The minimum ratio of basic dynamic radial load rating to basic dynamic thrust load rating in a single-row tapered roller bearing
|
1.67 | - |
Other Dimensions
| Parameters | Value | Units |
|---|---|---|
| Weight | 0.62 | lb |
| Inner Ring Width (B) | 0.6875 | in |
| Outer Ring Width (C) | 0.5000 | in |
|
Effective Center Location
The point at which the lines of force normal to the outer ring raceway intersect the bearing axis of a tapered roller bearing
|
-0.11 | in |
| Max Shaft Fillet Radius | 0.14 | in |
| Max Housing Fillet Radius | 0.06 | in |
| Shaft Backing Shoulder Diameter - Frontface (da) | 1.81 | in |
| Shaft Backing Shoulder Diameter - Backface (db) | 2.09 | in |
| Housing Backing Shoulder Diameter - Frontface (Da) | 2.72 | in |
| Housing Backing Shoulder Diameter - Backface (Db) | 2.60 | in |
|
Cage Location Relative to Backface (Aa)
A positive value means the cage is inside the cone backface and a negative value means the cage is outside the cone backface
|
-0.01 | in |
|
Cage Location Relative to Frontface (Ab)
A positive value means the cage is outside the cone frontface and a negative value means the cage is inside the cone frontface
|
0.08 | in |
Ratings
| Parameters | Value | Units |
|---|---|---|
|
Dynamic Radial Load Rating - 1M Revs (C1)
The Timken basic dynamic radial load rating for an L10 life of 1 million revolutions
|
11,400 | lbf |
|
Dynamic Radial Load Rating - 90M Revs (C90)
The Timken basic dynamic radial load rating for an L10 life of 90 million revolutions
|
2,960 | lbf |
|
Dynamic Axial Rating - 90M Revs (Ca90)
The Timken basic dynamic axial load rating for an L10 life of 90 million revolutions
|
1,770 | lbf |
| Static Radial Load Rating (C0) | 13,100 | lbf |
Factors
| Parameters | Value | Units |
|---|---|---|
|
Y Factor
The maximum recommended thrust load which should be applied to the bearing while in motion
|
1.71 | - |
|
G1 Factor
Geometry factor used to calculate bearing torque and heat generation
|
21.0 | - |
|
G2 Factor
Geometry factor used to calculate bearing torque and heat generation
|
16.8 | - |
|
Geometry Factor (Cg)
Geometry factor used to calculate the catalog a3l factor
|
0.0681 | - |
Disclaimer: The accuracy of the technical information supplied through this engineering tool is dependent upon the accuracy and completeness of information supplied to Timken. Actual product performance is affected by many factors beyond the control of Timken, and which cannot be modeled through this engineering tool. Therefore, you must validate the suitability and feasibility of all designs and product selection. The technical information is presented solely to provide you, a customer of Timken or its affiliates, with data to assist you in your design. No warranty, expressed or implied, including any warranty of fitness for a particular purpose, is made by Timken through the provision of this information.