ZF 0630.000.039 SHIM RING | OEM Genuine Part

Overview

The ZF 0630.000.039 SHIM RING is a precision-engineered OEM genuine component designed for critical axial clearance adjustment within ZF construction machinery transmissions. This hardened steel shim ring sits between the transmission housing and planetary gear assemblies, ensuring correct preload on bearings and shafts. As part number 0630.000.039, it directly controls end-play tolerances that prevent internal component collision during high-torque operation. When installed alongside the 4108101112 HOUSING and 4108201177 HOUSING, this shim ring establishes the foundation for reliable power transfer in heavy-duty loaders and graders.

Symptoms of Failure

• Excessive axial play in output shaft – Worn or incorrectly sized shim rings allow the shaft to move longitudinally, causing gear clash during direction changes. This often manifests as a “clunking” sound when shifting from forward to reverse.
• Premature bearing overheating – Insufficient preload from a collapsed shim ring permits bearing race slippage, generating localized heat that discolors nearby 0636302056 SCREW PLUG components.
• Intermittent gear slipping under load – When the shim ring fails to maintain proper gear mesh depth, the transmission may momentarily lose torque transfer on inclines or during bucket loading cycles.
• Oil contamination from metal particles – A fractured shim ring sheds hardened steel debris into the lubricant, often detected during routine filter inspections.

Technical Specifications

Compatibility

This shim ring is primarily specified for ZF WG180, WG200, and WG310 series powershift transmissions used in construction machinery. It also applies to select ZF 4WG-200 and 6WG-310 variants where axial clearance between the 4108301304 BEARING COVER and planetary carrier requires precise shimming. Always verify thickness requirements against your transmission’s service manual, as selective fit shims are often stacked to achieve final clearance.

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