1. Introduction
This manual provides essential information for the proper handling, installation, operation, and maintenance of the Timken 6580 Tapered Roller Bearing. Adhering to these guidelines will ensure optimal performance and longevity of the bearing.
2. Product Description and Features
The Timken 6580 Tapered Roller Bearing is engineered to manage both radial and axial loads simultaneously. Its design allows for relative motion and significantly reduces friction between rotating components, making it suitable for a wide range of industrial and automotive applications.
Key Features:
- Minimizes friction between the rotating parts.
- Features four interdependent components: inner ring (cone), outer ring (cup), cage, and rollers.
- Allows the bearing to handle thrust loads effectively.
- Distributes load evenly across the roller for enhanced durability.
- Offers heavy load carrying capacity.

Figure 2.1: Front view of the Timken 6580 Tapered Roller Bearing, showing the cone and rollers.
3. Components
A tapered roller bearing consists of four main components:
- Cone (Inner Ring): This is the inner race assembly, which includes the inner ring, the rollers, and the cage.
- Cup (Outer Ring): This is the outer race, which provides the outer raceway for the rollers.
- Rollers: Conically shaped rolling elements that transmit the load between the cone and cup.
- Cage: A retainer that spaces the rollers evenly and prevents them from falling out.

Figure 3.1: Top view of the Timken 6580 Tapered Roller Bearing, showing the inner ring with "TIMKEN" branding and model number "6580".
4. Setup and Installation
Proper installation is crucial for the performance and lifespan of the bearing. It is highly recommended that installation be performed by qualified personnel using appropriate tools and techniques.
General Installation Guidelines:
- Cleanliness: Ensure all components and surrounding areas are thoroughly clean and free from dirt, debris, or contaminants.
- Lubrication: Apply a suitable lubricant (e.g., grease) to the bearing surfaces before installation. Refer to the specifications for compatible lubricants.
- Press Fit: For press-fit applications, use a hydraulic press or induction heater to install the bearing. Avoid hammering directly on the bearing components, as this can cause damage.
- Proper Seating: Ensure the bearing is fully seated against its shoulder or housing bore.
- Clearance/Preload: Set the correct internal clearance or preload according to the equipment manufacturer's specifications. Incorrect settings can lead to premature failure.
- Seals: Install appropriate seals to protect the bearing from contaminants and retain lubricant.
Warning: Improper installation can lead to premature bearing failure, equipment damage, and potential injury. Always consult the equipment manufacturer's service manual for specific installation procedures.
5. Operating Principles
The Timken 6580 Tapered Roller Bearing operates by utilizing its tapered rollers and raceways to accommodate both radial (perpendicular to the shaft) and axial (parallel to the shaft) loads. The unique geometry of the tapered design allows the bearing to distribute loads evenly across the rollers, minimizing stress concentrations and ensuring smooth rotation.
When in operation, the rollers roll along the raceways of the cone and cup. The cage maintains the correct spacing and alignment of the rollers, preventing them from skewing or rubbing against each other. Proper lubrication is essential during operation to reduce friction, dissipate heat, and prevent wear.
6. Maintenance
Regular maintenance is vital for extending the service life of your Timken 6580 Tapered Roller Bearing.
Maintenance Schedule and Tips:
- Lubrication: Periodically inspect and replenish lubricant as per the equipment manufacturer's recommendations. Use only compatible lubricants (e.g., grease) to prevent degradation and ensure proper function. Over-lubrication or under-lubrication can both be detrimental.
- Inspection: Regularly inspect the bearing for signs of wear, corrosion, or damage. Look for unusual noises, vibrations, or excessive heat during operation.
- Contamination Control: Ensure seals are intact and effective to prevent ingress of dirt, moisture, and other contaminants, which are primary causes of bearing failure.
- Temperature Monitoring: Monitor the operating temperature of the bearing. Excessive heat can indicate lubrication issues, improper installation, or overload.
- Storage: Store spare bearings in a clean, dry environment, preferably in their original packaging, to prevent corrosion and contamination.
7. Troubleshooting
This section outlines common issues that may arise with tapered roller bearings and potential causes.
| Symptom | Possible Cause | Action |
|---|---|---|
| Excessive Noise | Lack of lubrication, contamination, improper fit, damage to raceways/rollers. | Check lubrication, inspect for contaminants, verify fit, replace if damaged. |
| Overheating | Insufficient lubrication, excessive preload, misalignment, overload. | Check lubrication, adjust preload, verify alignment, reduce load if possible. |
| Premature Failure | Improper installation, inadequate lubrication, contamination, excessive load, fatigue. | Review installation procedure, ensure proper lubrication and sealing, check load conditions, replace bearing. |
| Vibration | Damage to rolling elements/raceways, imbalance, misalignment. | Inspect bearing for damage, check for imbalance in rotating components, verify alignment. |
Note: For complex issues or if troubleshooting steps do not resolve the problem, consult a qualified technician or contact Timken technical support.
8. Specifications
Detailed specifications for the Timken 6580 Tapered Roller Bearing:
| Attribute | Value |
|---|---|
| Brand | TIMKEN |
| Model Number | 6580 |
| Material | Alloy Steel |
| Item Dimensions (L x W x H) | 6.2 x 6.1 x 2.7 inches |
| Item Weight | 4 Pounds |
| Bearing Type | Roller Bearing |
| Compatible Lubricant | Grease |
| UPC | 053893149523 |
| Manufacturer | Timken |
| Date First Available | February 25, 2008 |
9. Warranty Information
For specific warranty terms and conditions, please refer to the official warranty documentation provided by Timken or contact Timken customer service directly. Warranty coverage typically applies to defects in materials and workmanship under normal use and service.
10. Support and Contact
If you require further assistance, technical support, or have questions regarding the Timken 6580 Tapered Roller Bearing, please contact Timken customer support through their official website or designated support channels. Ensure you have your product model number (6580) ready when contacting support.
For more information, visit the official Timken website.





