Description
Overview:
This Corteco oil seal ring is a rotary shaft seal designed to replace JCB part number 904/50048. Made from durable NBR (Nitrile Butadiene Rubber), it provides reliable sealing of rotating shafts to prevent oil leakage and keep contaminants out. The size is 55 x 95 x 9 mm (2.17 x 3.74 x 0.35 inches), suitable for housings and shafts commonly found in agricultural and construction machinery. NBR offers strong resistance to mineral oils and greases, making it a practical choice for gearboxes, pumps, axle hubs and general power transmission. Built for consistent performance under vibration and load, this seal helps maintain lubrication, reduce wear, and extend component life, supporting dependable operation on plant, farm and site machinery where uptime matters.
Key Features:
- Replaces JCB 904/50048 for straightforward like‐for‐like fitment in compatible assemblies
- Size: 55 x 95 x 9 mm (2.17 x 3.74 x 0.35 inches) for 55 mm shafts and 95 mm housings
- NBR construction for dependable resistance to most petroleum‐based oils and greases
- Helps prevent oil loss and ingress of dust or grit, protecting bearings and gears
- Stable, round moulding for consistent sealing contact and reduced run‐in wear
- Suitable for agricultural and construction equipment with rotary shafts
- Manufactured by Corteco, recognised for sealing quality and dimensional accuracy
- Straightforward installation with standard workshop tools to minimise downtime
- Supports efficient maintenance schedules and reduces the risk of repeat leaks
- Versatile replacement option for service and repair of mixed‐fleet machinery
Typical Applications:
Sealing of rotary shafts in gearboxes, axle hubs, pumps, hydraulic motors and ancillary drives on construction plant and agricultural equipment. Commonly used during overhauls or oil leak repairs on excavators, loaders, telehandlers and tractors where a 55 mm shaft and 95 mm housing are specified.
Also known as:
Radial shaft seal, rotary oil seal, lip seal, radial oil seal, NBR shaft seal, hub seal, shaft gasket ring, JCB replacement seal, sealing ring for shafts.
Alternate Part Numbers:
904/50048, 90450048, 82037068
Product Specifications
| L&S Part No. | 320 256 |
|---|---|
| Manufacturer | Corteco |
| OEM No. | 19037068B |
| Unit of Sale | 1 |
| Size | 55 x 95 x 7mm |
| Machine Type | Excavators, Loaders, Telehandlers, Tractors |
| Fits Brands | JCB |
| Key Features | - Replaces JCB 904/50048 for compatible assemblies - Size: 55 x 95 x 9 mm for 55 mm shafts - NBR construction resists petroleum-based oils and greases - Prevents oil loss and contaminant ingress - Suitable for agricultural and construction equipment |
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