Description
Overview:
The Grooved Ball Bearing 17x40x14 is a genuine Stihl OEM component for high-performance chainsaws. Built from durable steel with a deep-groove raceway, it supports smooth, precise rotation under high speed and load. This bearing is used in the powerhead assembly of Stihl machines to keep rotating parts aligned and running freely, helping maintain cutting performance and reduce wear. It suits demanding workshop and site environments and is engineered to fit exactly where specified. Dimensions are 17 mm x 40 mm x 14 mm (0.67 in x 1.57 in x 0.55 in). Designed for Stihl MS660 and 064 models, it is a reliable replacement when servicing or rebuilding engines where consistent, low-friction running is essential. Genuine part status helps ensure correct fit and long-term reliability.
Key Features:
- Genuine Stihl OEM bearing for assured compatibility and quality
- Dimensions: 17 mm x 40 mm x 14 mm (0.67 in x 1.57 in x 0.55 in) for accurate fitment
- Deep-groove design supports radial and axial loads for smooth running
- Steel construction for durability under high RPM and heat
- Helps reduce vibration and wear, supporting longer service life of mating parts
- Suitable for heavy-duty cutting tasks in professional and domestic settings
- Consistent performance helps maintain chain speed and engine efficiency
- Designed for straightforward replacement during routine maintenance or rebuilds
Typical Applications:
Used during chainsaw maintenance and engine rebuilds to replace worn bearings, restore smooth rotation, and maintain cutting accuracy. Suitable for high‐load, high‐speed operation typical of professional forestry, arborist work, and landscaping. Helps keep crankshaft assemblies running true and reduces friction-related damage.
Also known as:
Deep groove ball bearing 17x40x14, chainsaw bearing, engine bearing, main bearing, replacement bearing for Stihl saws, 17-40-14 bearing, grooved bearing, service part for chainsaw drive assemblies.
Fits Models:
064, 066, MS 640, MS 650, MS 660, MS640, MS650, MS660
Alternate Part Numbers:
9523-003-4555, 9523 003 4550, 95230034550, 95230034555
