Description
Overview:
The Connecting Rod Big Ends U/S010 (pairs) are genuine BSA bearing shells for the BSA 320cc Industrial Engine. Supplied as a matched pair for one connecting rod, they support the big end of the rod on the crankpin and maintain a stable oil film for smooth running. The U/S 010 designation indicates 0.010 in undersize (approx. 0.25 mm), intended for crankshafts that have been reground to that dimension. These precision-machined metal shells are built for the rigours of industrial service and help restore correct running clearances and reliability. OEM reference 86 123 U/S 010. This is unused old stock suitable for maintenance and restoration, and may show cosmetic tarnishing from age without affecting performance. Genuine BSA quality ensures correct fit and compatibility.
Key Features:
- Genuine BSA part for the 320cc Industrial Engine for assured fit and function
- U/S 010 size: 0.010 in undersize (approx. 0.25 mm) for reground crankpins
- Supplied as a pair of shells for one connecting rod big end
- Precision-machined bearing surfaces to maintain correct oil clearance
- Durable construction for sustained industrial use and long service life
- Unused old stock; may have tarnish or storage marks that do not affect use
- Helps restore stable oil pressure and smooth operation after overhaul
- Straightforward to fit with standard workshop practice when rebuilding the bottom end
- OEM No. 86 123 U/S 010 for easy identification and parts matching
Typical Applications:
Used during rebuilds and servicing of BSA 320cc Industrial Engines found on plant, generators, pumps, compressors and other stationary machinery. Suitable when a crankshaft has been ground 0.010 in (0.25 mm) undersize and correct bearing running clearance is required to return reliable performance.
Also known as:
Con-rod big end shells, big end bearing shells, connecting rod bearing inserts, rod journal shells, conrod insert bearings, 0.010 in undersize big end shells (0.25 mm), U/S010 shells, crankpin bearing shells for connecting rod.
Product Specifications
| L&S Part No. | 86 123 U/S 010 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | BSA |
| OEM No. | 86 123 U/S 010 |
| Unit of Sale | 1 |
| Machine Type | Engines |
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