NISSAN 43070-01J00 Rear Axle Bearing Spacer

The genuine Nissan 43070-01J00 rear axle shaft bearing spacer (SPACER BRG AXLE) is a critical, precision component that ensures the accurate axial positioning and retention of the rear wheel bearing on the axle shaft. This spacer ring is responsible for maintaining proper bearing preload, preventing axial movement during vehicle operation.

Technical Features and Functions:

• Premium Material Quality: Manufactured from high-strength, heat-treated structural steel engineered to withstand heavy mechanical stress and continuous axial loads.
• Precise Fit: Genuine Nissan OEM (Original Equipment Manufacturer) component, guaranteeing strict adherence to factory dimensions and tolerances to eliminate installation inaccuracies.
• Installation Position: Rear suspension, directly adjacent to the axle shaft bearing (applicable to both the left and right sides depending on vehicle specification).
• Protection: Prevents bearing overheating and premature wear by maintaining optimal raceway geometry under load.

Signs of Failure or Wear:

Although the spacer is a static component, it can become deformed or damaged during wheel bearing replacement or due to improper installation methods. A damaged or worn spacer can lead to the following issues:

• Metallic, humming, or grinding noises originating from the rear axle and wheels.
• Premature failure or overheating of the rear wheel bearing.
• Noticeable axial play (looseness) at the rear wheel, compromising vehicle stability and handling.
• Uneven tire wear across the rear axle.

To guarantee safe operation and maximize bearing service life, it is recommended to inspect the condition of the spacer ring whenever replacing the wheel bearing and install a new genuine OEM replacement if required.