Description
Overview:
The Corteco Oil Seal Ring is a heavy‐duty NBR (Nitrile Butadiene Rubber) seal designed to keep lubricants in and contaminants out on rotating shafts used in agricultural and construction machinery, including equipment commonly associated with Volvo plant. Sized at 165 x 191.5 x 13 mm (6.5 x 7.5 x 0.5 inches), the dimensions are typically read as shaft diameter x housing bore x width for correct selection. As part of Corteco's RWDR‐KOMBI series, it is engineered for reliable performance at high circumferential speeds and in dirty conditions. NBR provides a good balance of oil resistance, flexibility, and wear resistance, making this seal suitable for gearboxes, axles, pumps, and drive units where persistent sealing is essential for uptime and efficiency.
Key Features:
- Precise sizing: 165 mm ID x 191.5 mm OD x 13 mm width (6.5 in x 7.5 in x 0.5 in) for accurate fit-up
- NBR elastomer for durability, oil/fuel compatibility, and consistent lip flexibility
- RWDR‐KOMBI profile designed for high circumferential speeds and resistance to soiling
- Helps protect bearings and gears by maintaining lubricant and blocking dust and moisture
- Stable sealing under vibration and misalignment typically found in mobile machinery
- Suitable for agricultural and construction environments where ingress is common
- Reliable performance with mineral oils and common hydraulic/transmission fluids
- Black NBR construction with a robust cross‐section for long service life
- Simple press‐fit installation into the housing bore when using correct tools
- Supports preventative maintenance by reducing leak paths and oil loss
Typical Applications:
Used on rotating shafts in gearboxes, final drives, axles, PTOs, hydraulic pumps, and motors on tractors, excavators, loaders, and similar plant. Common in maintenance and overhaul tasks to stop oil leaks and keep contaminants out, especially on equipment aligned with Volvo construction and agricultural machinery.
Also known as:
Radial lip seal, hub seal, axle oil seal, gearbox input seal, rotary oil ring, housing seal ring, drive shaft oil ring, bearing carrier seal.
Alternate Part Numbers:
82018818, 11034102
Product Specifications
| L&S Part No. | 320 254 |
|---|---|
| Manufacturer | Corteco |
| OEM No. | 12018818B |
| Unit of Sale | 1 |
| Size | 165 x 191.5 x 23mm |
| Machine Type | Excavators, Tractors |
| Fits Brands | Volvo |
| Key Features | - NBR elastomer for oil resistance and flexibility - 165 mm ID x 191.5 mm OD x 13 mm width - RWDR‐KOMBI profile for high-speed performance - Suitable for agricultural and construction machinery - Press-fit installation for easy housing bore fit-up |
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