Timken 226530 Wheel Seal - Rear Inner

Timken 226530 Wheel Seal for Nissan Rear Inner Axles

Timken 226530 is a wheel seal built for rear inner axle service on select Nissan trucks and pickups with dual rear wheels. It uses an S-Nitrile sealing material and a reinforced outer case to help maintain a secure fit while keeping lubricant in place and road contaminants out.

Key Features

• S-Nitrile construction for sealing performance in driveline and axle service
• Reinforced outer case helps resist installation damage and supports durability
• Ribbed rubber inner diameter seals minor spindle imperfections and promotes positive spindle seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes allow lubricant flow around the seal lip to reduce heat build-up
• Dimensions: 3.554 in. outside diameter, 2.559 in. shaft diameter, 3.543 in. housing bore, 0.394 in. width

Detailed Description

Timken 226530 is a Type 35 wheel seal engineered for axle sealing in rear inner positions. It is listed for 1980-1986 Nissan 720, 1986-1994 Nissan D21, and 1995 Nissan Pickup applications equipped with dual rear wheels. This part cross-references Gates 25428 and SKF 25430 for the same application. The seal design focuses on lubricant retention, contamination control, and stable seating on the spindle or housing surfaces commonly found in Nissan rear axle service.

For Nissan 720, Nissan D21, and Nissan Pickup rear inner wheel seal replacement, Timken 226530 provides the dimensional fit and sealing profile needed for axle maintenance. The ribbed inner diameter helps address minor surface imperfections, while the vented design supports cooler operation at the seal lip.

What It Helps Address

• Gear oil or grease leakage at the rear inner wheel seal
• Contamination entering the axle seal area
• Seal damage during installation
• Poor sealing on spindle surfaces with minor imperfections
• Heat build-up at the seal lip during operation

Installation Notes and Tips

Verify housing bore, shaft diameter, outside diameter, and width before installation. Clean the spindle and seal bore thoroughly, and inspect for scoring, corrosion, or wear that could affect sealing performance. Press the seal in evenly to avoid distortion and confirm the seal seats fully in the housing.

Quality Assurance

Timken manufactures oil and grease seals with precision sealing designs for driveline and axle applications. The reinforced case, contamination exclusion features, and vented lip design reflect a focus on durability and consistent sealing performance in service.