Best Main Shaft Bearings of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Aug 29, 2023

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Main shaft bearings are an essential component of many industrial machines, including turbines, generators, and heavy-duty vehicles. These bearings are designed to support the weight of the rotating shaft, reducing friction and ensuring smooth operation. They come in a variety of sizes and materials, including steel, bronze, and ceramic, to suit different applications and operating conditions. Main shaft bearings are built to withstand high loads, shock, and vibration, making them ideal for use in heavy-duty environments. With their reliable performance and long service life, main shaft bearings are a vital part of many industrial operations.

At a Glance: Our Top Picks

ACDelco GM Main Shaft Rear Bearing Cover #TOP 1
ACDelco GM Main Shaft Rear Bearing
ftb score rating icon 9.8
ACDelco GM OE 96108006 Transmission Bearing Cover #TOP 2
ACDelco GM OE 96108006 Transmission Bearing
ftb score rating icon 9.7
ACDelco GM Manual Transmission Bearing Cover #TOP 3
ACDelco GM Manual Transmission Bearing
ftb score rating icon 9.5

Top 5 Main Shaft Bearings

#TOP 1

ACDelco GM Main Shaft Rear Bearing

88996720
ACDelco GM Main Shaft Rear Bearing Cover
ACDelco GM Original Equipment 88996720 Manual Transmission Main Shaft Rear Bearing

The ACDelco GM Original Equipment 88996720 Manual Transmission Main Shaft Rear Bearing is a recommended replacement part for your GM vehicle, offering the same quality, reliability, and durability as the original factory component. This main shaft bearing is manufactured to GM OE specification for fit, form, and function and falls under the category of Main Shaft Bearings.

What We Like
Same quality, reliability, and durability as original factory component
Manufactured to GM OE specification for fit, form, and function
#TOP 2

ACDelco GM OE 96108006 Transmission Bearing

96108006
ACDelco GM OE 96108006 Transmission Bearing Cover
ACDelco GM Original Equipment 96108006 Manual Transmission Main Shaft Rear Bearing

This is a GM-recommended replacement bearing designed to offer the quality, reliability, and durability of GM OE. It is manufactured to GM OE specification for fit, form, and function, ensuring it is perfect for your GM vehicle's original factory component. The bearing is ideal for use as a manual transmission main shaft rear bearing, and falls under the Main Shaft Bearings category.

What We Like
GM-recommended replacement part
Manufactured to GM OE specification for fit, form, and function
Quality, reliability, and durability of GM OE
#TOP 3

ACDelco GM Manual Transmission Bearing

S1314
ACDelco GM Manual Transmission Bearing Cover
ACDelco GM Original Equipment S1314 Manual Transmission Main Shaft Rear Bearing

The ACDelco GM Original Equipment S1314 Manual Transmission Main Shaft Rear Bearing is a high-quality replacement part for your GM vehicle's original factory component. It offers the same reliability, durability, and fit as the OE part, ensuring your vehicle runs smoothly. The bearing is manufactured to GM OE specifications for precise fit, form, and function. It falls under the category of main shaft bearings.

What We Like
High-quality replacement part
Reliable and durable
Precisely manufactured to OE specifications
#TOP 4

febi bilstein 37930 Main Bearing for Transmission Shaft

febi bilstein 37930 Main Bearing for Transmission Shaft Cover
febi bilstein 37930 main bearing for transmission shaft - Pack of 1

This main shaft bearing is a direct replacement for the original part with matching original equipment quality. It is important to check the application before fitting to the vehicle and must be installed by a qualified technician.

What We Like
Matches original equipment quality
Direct replacement for original part
Ensures proper fit with application check
Requires qualified technician for installation
#TOP 5

Sealed Power 4036M Main Bearing

4036M
Sealed Power 4036M Main Bearing Cover
Sealed Power 4036M Main Bearing

Sealed Power Main Bearing is a hardware bearing designed for your automobile's main shaft bearings. This product comes in a package size of 6.16L x 3.73W x 1.76H inches and weighs 1.24 pounds. With a quantity of 1 in each package, the Sealed Power Main Bearing is a reliable and convenient option for your vehicle's maintenance needs. The bearing is designed to reduce friction and wear, providing a smooth and efficient operation for your engine. The compact size and weight of the package make it easy to store and transport. The Sealed Power Main Bearing is a high-quality product that will help your engine run smoothly and efficiently.

What We Like
Reduces friction and wear
Smooth and efficient operation
Compact size and weight
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the main shaft in a wind turbine?

A wind turbine's main shaft arrangement is part of a geared, hybrid, or direct drive design. Whatever the arrangement, it must withstand axial and radial loads and operate under harsh, continuously changing conditions. Wind turbine main shaft bearings spin at relatively low speeds of around 10 rpm.

2. How do you check input shaft bearings?

When your vehicle is in neutral, you should only hear the hum of the engine. But, if you hear strange noises before you put the car in gear, it is most likely a sign of a faulty input shaft bearing. The tone and pitch of this noise will vary based on the speed that the engine is running at.

Editor's Notes

During our main shaft bearing research, we found 7 main shaft bearing products and shortlisted 5 quality products. We collected and analyzed 2,022 customer reviews through our big data system to write the main shaft bearings list. We found that most customers choose main shaft bearings with an average price of $28.35.

The main shaft bearings are available for purchase. We have researched hundreds of brands and picked the top brands of main shaft bearings, including ACDelco, Febi Bilstein, Sealed Power. The seller of top 1 product has received honest feedback from 386 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.