ZF 0630.000.293 SHIM RING | OEM Genuine Part

Overview

The ZF 0630.000.293 SHIM RING is a precision-engineered OEM genuine component designed for axial clearance adjustment within heavy-duty ZF powershift transmissions. This hardened steel shim ring sits between the planetary gear set and the clutch housing, ensuring correct end-play tolerances are maintained during assembly or overhaul. The SKU 0630.000.293 is critical for eliminating internal backlash that can lead to premature bearing failure. When rebuilding a transmission, this shim ring is often installed alongside the 4699101002: HOUSING and the 4699301188: HOUSING to achieve the specified stack-up height.

Symptoms of Failure

• Excessive axial play in the output shaft: A worn or incorrect shim ring allows the gear train to shift laterally, causing a knocking sensation during load changes.
• Intermittent gear slipping under load: When the shim ring loses its original thickness, clutch pack clearance increases, leading to delayed engagement and power loss.
• Metallic grinding noise from the transmission housing: Metal-to-metal contact between the planetary carrier and the 4699301128: COVER occurs when the shim ring compresses beyond its service limit.
• Oil contamination with fine metallic particles: As the shim ring wears, debris circulates through the lubrication system, accelerating damage to bearings and seals.

Technical Specifications

Compatibility

This shim ring is primarily used in ZF WG180, WG200, and WG211 series powershift transmissions commonly found in construction machinery such as wheel loaders, bulldozers, and telehandlers. It also fits select ZF 4WG-200 and 6WG-200 variants. Always verify the stack-up height requirement using the original service manual. The shim ring is secured in place using the 0636015047: HEXAGON SCREW during final assembly.

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