Wacker Neuson 5000112002 Radial Ball Bearing 6309 C4

The Wacker Neuson is a genuine OEM Radial Ball Bearing 6309 C4 designed for the RD7 series walk-behind tandem rollers, including the RD7H-ES, RD7H-S, and RD7 Raw drum configurations. Sourced directly through Wacker Neuson's authorized parts program, this bearing matches the exact designation, internal clearance rating, and dimensional specification called out in the original equipment build. Fitment covers the full RD7 family, making it a direct drop-in for both the ES and S variants across EU and standard configurations. If your RD7 tandem roller is due for a drivetrain or drum-shaft service, the is the correct bearing to have on hand.

Key Features

• OEM-Spec C4 Internal Clearance — The C4 clearance rating is specified for applications with elevated operating temperatures or press-fit installations; using the correct clearance grade prevents premature preload and bearing failure.
• 6309 Series Geometry — Standard 6309 dimensions mean the bearing seats correctly into the original housing bore without rework, shimming, or machining.
• Broad RD7 Family Coverage — Confirmed fitment across RD7H-ES, RD7H-S, RD7H, and RD7 Raw drum variants, including EU-spec and standard-spec machines.
• Genuine Wacker Neuson OEM Part — Supplied as original equipment, so material grade, load rating, and dimensional tolerancing are held to the same standard as the bearing installed at the factory.
• Drum and Drivetrain Integrity — A correctly specified radial ball bearing keeps drum rotation smooth and load transfer consistent; a worn or incorrectly rated bearing leads to vibration, uneven compaction output, and accelerated housing wear.

A radial ball bearing like the 6309 C4 supports rotating shafts by carrying radial loads generated during drum operation, allowing the drum or drive shaft to spin freely within its housing with minimal friction. The C4 internal clearance designation means the bearing is built with slightly more internal play than a standard C3 or CN bearing, which compensates for thermal expansion and tight interference fits common in compaction equipment drivetrains. When this bearing wears out or loses its clearance rating, operators will typically notice increased vibration, audible roughness from the drum assembly, and eventual shaft movement that can damage surrounding housings and seals.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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