Description
Overview:
The Drum Shaft Oil Seal B407 is a genuine Altrad/Belle replacement part for the Belle Minimix 150 cement mixer, designed to maintain a tight, reliable seal around the drum shaft within the gearbox. Built with a durable, oil-resistant elastomer and a rigid metal outer case, it helps prevent oil loss and keeps contaminants out, supporting smooth mixer operation. This seal suits Belle mixers manufactured from June 1989 onwards and is a direct-fit solution for the Minimix 150 and selected related models. Supplied under OEM No. CMS11, it is suitable for routine maintenance or repair when a worn or damaged seal is causing oil seepage, gearbox noise, or reduced performance. A practical, long-lasting fix for both site and home use.
Key Features:
- Genuine Altrad/Belle part for assured fit and quality (OEM No. CMS11)
- Metal-cased rotary oil seal with an oil-resistant sealing lip for durability
- Designed for Belle Minimix 150 gearboxes from 1989 onwards (post-June 1989)
- Helps prevent oil leaks and protects the gearbox from dust and debris
- Supports smooth, efficient drum rotation under typical site conditions
- Precise dimensions for straightforward replacement and reliable seating
- Suitable for preventative maintenance and corrective repairs
- Robust construction to withstand vibration and temperature variations in service
Typical Applications:
Used when servicing the gearbox on Belle Minimix cement mixers to stop oil leaks around the drum shaft, restore correct lubrication, and extend component life. Ideal during a gearbox refresh, drum shaft service, or full rebuild, particularly after signs of oil seepage, contamination, or wear from heavy site use.
Also known as:
Oil seal, drum shaft seal, rotary shaft seal, gearbox shaft seal, lip seal, rotary oil seal for mixer gearbox, drum oil seal for Minimix, mixer shaft seal. These terms describe the same sealing function at the drum/gearbox interface on compatible Belle mixers.
Fits Models:
150
150E+
Maxi 140
Maxi140
Minimix 140
Minimix 150
Minimix140
Minimix150
Product Specifications
| L&S Part No. | CMS11 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Altrad/Belle |
| OEM No. | CMS11 |
| Unit of Sale | 1 |
| Applications | 150, 150E+, Maxi 140, Maxi140, Minimix 140, Minimix 150, Minimix140, Minimix150 |
| Machine Type | Concrete Equipment |
| Fits Brands | Belle |
| Fits Models | Minimix 150 | Maxi 140 | Minimix 140, 150 (Pre 1999) | 150E+ |
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