Description
Overview:
This small end bearing is a precision needle-roller bearing for the connecting rod of two‐stroke engines used in compactors and chainsaws. It supports the gudgeon (wrist) pin, keeping the piston movement smooth while minimising friction and wear. Made from hardened steel rollers with a robust cage, it is built for the shock loads and high temperatures typical of rammer engines. Suitable for Wacker rammers including BS50-2 and BS60-2, and selected Stihl chainsaws such as 044 and MS460, it helps restore performance and reliability when the original bearing is worn. This is a Non Genuine replacement part, offering a practical, cost‐effective option for routine servicing and repairs where compatibility with the listed models is required.
Key Features:
- Hardened steel needle rollers and cage for durability under heavy vibration and impact loads
- Helps maintain correct piston alignment and reduces friction at the wrist pin
- Built to precise tolerances for reliable operation in two‐stroke engines
- Suitable for rammers/compactors and selected chainsaws across construction and forestry use
- Straightforward to install with standard workshop tools once the cylinder and piston assembly are accessed
- Stable performance under heat and poor lubrication conditions typical of demanding site work
- Cost‐effective Non Genuine alternative for maintenance of older and current models
- Replaces a range of OEM references for easier identification and stocking
- Supports preventative maintenance schedules to reduce downtime
Typical Applications:
Used during engine overhauls or top‐end refreshes on trench rammers/tampers and compatible chainsaws. Ideal for restoring smooth piston motion, reducing noise from worn bearings, and extending service life after heavy site use, hire fleet operation, forestry felling, or firewood processing.
Also known as:
Wrist pin bearing, gudgeon pin bearing, small end cage, con‐rod small end bearing, connecting rod needle bearing, piston pin bearing.
Fits Models:
044, 046, 266, 268, 356BF, 356BT, 365, 61, 66, BS45Y, BS50-2, BS500, BS502, BS52Y, BS60-2, BS600, BS602, BS60Y, BS650, BS65Y, BS70-2, BS700, BS702, MS311, MS362, MS391, MS440, MS460, MS461
Alternate Part Numbers:
9512 003 3061, 503 73 39-01, 95120033061, 503733901, 0034835
Product Specifications
| L&S Part No. | 610 647 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Applications | 044, 046, 266, 268, 356BF, 356BT, 365, 61, 66, BS45Y, BS50-2, BS500, BS502, BS52Y, BS60-2, BS600, BS602, BS60Y, BS650, BS65Y, BS70-2, BS700, BS702, MS311, MS362, MS391, MS440, MS460, MS461 |
| Machine Type | Rammers, Breakers, Chainsaws |
| Fits Brands | Wacker Neuson |
| Fits Models | MS440 | MS460 | MS311 | MS391 | MS461 | 266 | 66 | 356BF | 356BT |
