For routine gearbox and reducer maintenance, an affordable radial shaft seal can help control leakage and keep lubricants where they belong—without over-specifying the solution.
Reliable standard sealing structure for common maintenance needs
Optional dust lip when contamination is a concern
Material choices to balance performance and cost
Custom sizes for hard-to-source replacement parts
| Attribute | Options / Notes |
|---|---|
| Product type | Maintenance radial shaft seal |
| Value positioning | Cost-effective / budget-friendly |
| Target use | Gearbox & reducer maintenance (MRO) |
| Primary function | Lubricant retention |
| Secondary function | Contamination control (optional) |
| Lip style | Single lip / Double lip option |
| Spring | Garter spring standard |
| OD style | Metal case / Rubber-coated OD (option) |
| OD sealing | Press-fit housing retention |
| Lip materials | NBR (common value choice) / FKM (option) / others on request |
| Lubricants | Common gear oils & greases (verify compatibility) |
| Temperature capability | Material dependent |
| Speed capability | Material/profile dependent |
| Pressure capability | Low pressure typical |
| Dust lip | Optional |
| Shaft size (d) | Custom sizes available |
| Bore size (D) | Custom sizes available |
| Width (b) | Custom sizes available |
| Rotation | Bi-directional standard |
| Runout | Profile dependent |
| Misalignment | Profile dependent |
| Shaft finish | Fine finish recommended |
| Shaft hardness | Recommended based on duty |
| Housing compatibility | Standard metal bores |
| Installation | Press-fit with driver tool |
| Chamfer | Recommended for safe assembly |
| Assembly sleeve | Recommended for splines/keyways |
| Drag torque | Depends on preload & lubrication |
| Heat generation | Depends on speed/material |
| Wear resistance | Compound dependent |
| Corrosion option | Optional stainless case |
| Marking | Size marking optional |
| Inspection | Dimensional + visual checks |
| Traceability | Optional |
| Documentation | Optional COC / inspection report |
| Packaging | Protective packaging |
| Customization | Size, lip, OD, material |
| Best-fit buyers | Maintenance teams, distributors, repair shops |
| Typical equipment | Conveyors, mixers, fans, packaging lines |
| Ordering data | d × D × b + lubricant + rpm + temperature |
If your application is standard duty with common gear oils, a general-purpose compound and standard lip design is often the most cost-effective choice.



