What is the primary function of a main bearing?

A main bearing supports the crankshaft within the engine block. Its main job is to reduce friction and wear as the crankshaft rotates, ensuring smooth engine operation and longevity.

Where are these Wiseco main bearings manufactured?

These Wiseco main bearings are forged and machined in the USA, specifically in Mentor, Ohio. This ensures a high level of manufacturing oversight.

What does 'lightening operations' mean for this bearing?

Lightening operations refer to removing small amounts of material from the bearing to reduce its overall weight. This can contribute to improved throttle response by reducing rotational mass within the engine.

Wiseco Main Bearing 20x47x14mm B5068

Name: Wiseco Main Bearing - 20 x 47 x 14mm
Brand: Wiseco
SKU: wiseco-wiseco-main-bearing-20-x-47-x-14mm-t14-886924
Price: 71.59 USD
Availability: BackOrder

Wiseco Main Bearing - 20 x 47 x 14mm

$71.59

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wiseco Main Bearing - 20 x 47 x 14mm. Manufactured by OEM suppliers for reliable service.

Key Features

Fits 20x47x14mm main bearing applications.
Manufactured by many of the same suppliers to OEMs, including leading Japanese manufacturers.
Inspected for accuracy, function, and cleanliness for efficient and reliable service.
Forged and machined in the USA.
Dedicated forging design for strength-to-weight optimization.
Extra lightening operations for enhanced throttle response.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Wiseco is known for making strong engine components, and this main bearing is no exception. It's built to keep your engine running smoothly. This bearing measures 20mm inside diameter, 47mm outside diameter, and is 14mm wide, fitting many applications where precise engine componentry is key.

These bearings are made by many of the same suppliers that provide parts to original equipment manufacturers, including top Japanese companies. Each one is carefully checked for accuracy, proper function, and cleanliness to ensure it works efficiently and reliably. The design includes dedicated forging for a good strength-to-weight ratio and extra lightening operations that can help with throttle response.

It's worth noting that this part is forged and machined in the USA. While the description mentions it's designed for all-purpose 2-stroke riding, the core function of a main bearing is to support the crankshaft, reducing friction and wear. This makes it a solid option for rebuilding or repairing your engine.