InMotion RB6304-2RS Manual Transmission Countershaft Bearing - Center or Rear

Manual Transmission Countershaft Bearing Overview

The InMotion RB6304-2RS is a sealed ball bearing built for rotational support in transmission and related automotive applications. With a 0.787 in inside diameter, 2.047 in outside diameter, and 0.591 in width, it is sized for precise fitment where stable shaft support and low-friction operation are required.

Compatible With select Ford, Toyota, Nissan, and Mercury applications, including 1963-1994 Ford E-250 Econoline, F-350, and related models, this bearing is also listed for 1979-1982 Nissan 210 with Aichi W60A transmission and 1984 Toyota Land Cruiser and Pickup with 55 Amp alternator applications.

Key Features

• Part number: RB6304-2RS
• Type: ball bearing
• Sealed design for added protection from contamination
• Single-row construction
• Round bearing profile
• Inside diameter: 0.787 in
• Outside diameter: 2.047 in
• Width: 0.591 in

Detailed Description

InMotion RB6304-2RS is a sealed, single-row ball bearing engineered for smooth rotation and dependable support under automotive operating conditions. Its compact dimensions make it suitable for applications that require controlled shaft movement, reduced friction, and consistent alignment. This part number is listed across multiple vehicle platforms, including Ford E-250 Econoline, Ford F-350, Toyota Land Cruiser, Toyota Pickup, Nissan 210, and select Mercury applications, making RB6304-2RS a practical service part for a range of drivetrain and accessory-drive needs.

This part cross-references common bearing applications used in transmission and alternator service, including 6304-2RS and RB6304-2RS-style replacements for the same application.

What It Helps Address

• Excessive bearing noise from worn rotating components
• Rough or inconsistent shaft rotation
• Friction-related wear in supported assemblies
• Loss of stability in a bearing seat or shaft support point
• Service replacement needs for sealed ball bearing applications

Installation Notes and Tips

Verify the inside diameter, outside diameter, and width against the original bearing before installation. Confirm the vehicle application and any listed configuration notes, such as alternator output or transmission type, since fitment varies by equipment package. Clean the bearing bore and shaft surfaces thoroughly, and inspect adjacent components for wear before pressing the new bearing into place.

Quality Assurance

InMotion positions this bearing as a durable, multi-purpose component built from quality materials for consistent performance in automotive and industrial environments. The sealed construction supports long service life by helping protect the bearing internals during operation.