1. Introduction
This manual provides essential information for the proper handling, installation, operation, and maintenance of the SKF 12610 LDS & Small Bore Seal. Adhering to these instructions will help ensure optimal performance and longevity of the seal.
2. Product Overview
The SKF 12610 is a high-quality Lip Data Sheet (LDS) seal designed for various industrial applications. It features a single lip with a garter spring, providing effective sealing against lubricants and contaminants. Constructed from Nitrile rubber, it offers good resistance to oils and a wide range of temperatures.

Figure 1: The SKF 12610 LDS & Small Bore Seal. This image displays the SKF 12610 LDS & Small Bore Seal. The seal features a turquoise-colored outer casing, a black rubber inner lip, and a visible garter spring designed to maintain sealing pressure around a shaft. The overall shape is circular, indicating its function in rotary applications.
3. Specifications
| Attribute | Value |
|---|---|
| Model Number | 12610 |
| Material | Nitrile Rubber |
| Nominal Inside Diameter | 1.25 Inches |
| Nominal Outside Diameter | 2.327 Inches |
| Width | 0.5 Inches |
| Lip Code | R |
| Style | CRW1 |
| Item Weight | 0.8 ounces |
| UPC | 085311011457 |
4. Installation
Proper installation is crucial for the effective performance of the seal. Follow these general guidelines:
- Preparation: Ensure the shaft and bore surfaces are clean, free from burrs, scratches, and foreign particles. Lubricate the seal lip and shaft with the system's operating fluid or a compatible lubricant before installation.
- Handling: Handle the seal carefully to avoid damage to the sealing lip or garter spring. Do not stretch or deform the seal excessively.
- Installation Tool: Use a proper installation tool that applies even pressure to the outer diameter of the seal. Avoid using sharp objects or hammers directly on the seal. The tool should guide the seal squarely into the bore.
- Alignment: Ensure the seal is installed squarely into the bore, with the sealing lip facing the fluid to be sealed.
- Shaft Entry: If the seal must pass over splines, keyways, or sharp edges on the shaft, use a protective sleeve or tape to prevent damage to the sealing lip.
Consult specific equipment manuals for detailed installation procedures if available.
5. Operation
Once correctly installed, the SKF 12610 seal functions by maintaining a thin film of lubricant between its sealing lip and the rotating shaft. The garter spring provides radial force to ensure continuous contact and effective sealing. The Nitrile material is suitable for applications involving petroleum-based oils and greases, water, and some hydraulic fluids within its specified temperature range.
Ensure that the operating conditions, such as temperature, pressure, and shaft speed, remain within the seal's design limits to prevent premature wear or failure.
6. Maintenance
Lip seals are generally maintenance-free once installed. However, periodic inspection of the seal area can help identify potential issues early:
- Visual Inspection: Regularly check for signs of leakage around the seal.
- Lubrication: Ensure adequate lubrication is present in the system, as dry running can quickly damage the seal.
- Replacement: Seals are wear components and should be replaced as part of routine maintenance or at the first sign of leakage or degradation. Factors like operating environment, shaft condition, and fluid compatibility influence seal lifespan.
7. Troubleshooting
Common issues related to lip seals and potential causes:
- Leakage:
- Cause: Improper installation, damaged seal lip, worn shaft surface, excessive shaft runout, incompatible lubricant, or high pressure.
- Solution: Re-install correctly, replace seal, repair or replace shaft, check system pressure, verify lubricant compatibility.
- Premature Wear:
- Cause: Abrasive contaminants, insufficient lubrication, excessive temperature, high shaft speed, or chemical attack.
- Solution: Improve filtration, ensure proper lubrication, manage operating temperature, verify seal material compatibility with fluids.
- Seal Extrusion:
- Cause: Excessive system pressure or incorrect bore dimensions.
- Solution: Reduce pressure, verify bore dimensions, consider a seal designed for higher pressure.
8. Safety Information
When working with industrial components and machinery, always observe the following safety precautions:
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Ensure machinery is de-energized and locked out before performing any installation or maintenance.
- Be aware of pinch points and rotating machinery.
- Dispose of used seals and lubricants according to local environmental regulations.
9. Warranty and Support
For specific warranty information regarding your SKF 12610 LDS & Small Bore Seal, please refer to the original purchase documentation or contact SKF directly. For additional technical support or product inquiries, visit the official SKF website or contact an authorized SKF distributor.
You can find more information about SKF products and support at the SKF Store on Amazon.





