The Wacker Neuson 5100031778 is a genuine OEM Cylindrical Roller Bearing designed for RD7 and RD10 series walk-behind tandem rollers. As a factory-sourced component, this bearing meets the exact tolerancing and load ratings specified for these machines, ensuring correct operation from installation day one. It is confirmed to fit a wide range of RD7 variants — including RD7Ye, RD7Yeh HRC, RD7Yeh LRC, RD7Yehf HRC, RD7Yehf LRC, RD7Yehfb HRC, RD7Yehfb LRC — as well as the RD10Yehf LRC. Sourcing the genuine OEM part means you are installing a bearing that has been validated against the original engineering drawings for these rollers.
Key Features
- OEM-Grade Radial Load Tolerance: — Manufactured to the precise radial load and dimensional specifications required for tandem roller drum and drive assemblies, preventing premature fatigue or play.
- Drop-In Installation: — Engineered to match the original bearing seat dimensions exactly, seating correctly in the housing without reworking or shimming.
- Broad RD7 and RD10 Series Coverage: — A single part number covers RD7Ye, RD7Yeh, RD7Yehf, RD7Yehfb HRC and LRC variants, plus the RD10Yehf LRC walk-behind tandem roller.
- Sustained Drum and Drive Performance: — A correctly functioning cylindrical roller bearing keeps rotational resistance low and load transfer consistent across the drum assembly; a worn bearing introduces vibration, uneven compaction, and accelerated wear to surrounding components.
- Genuine Wacker Neuson OEM Part: — Sourced directly through the Wacker Neuson parts supply chain, this bearing carries full OEM traceability and is the same component installed at the factory.
A cylindrical roller bearing supports rotating shafts and drum assemblies by distributing radial loads across a set of precision-ground cylindrical rollers, minimizing friction and allowing smooth, consistent rotation under heavy working loads. In a walk-behind tandem roller like the RD7 or RD10 series, these bearings are critical to maintaining proper drum alignment and drive efficiency — the machine's ability to deliver even compaction pressure across the full drum width depends on the bearing running true. When a cylindrical roller bearing wears or fails, operators typically notice increased vibration, audible noise from the drum or drive assembly, and a drop in compaction uniformity, all of which signal an immediate replacement is needed to avoid cascading damage to adjacent components.
Part Details
| Part Number | 5100031778 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylindrical Roller Bearing |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD7Ye Tandem Roller | RD7Ye | 5100027116, 5100027117, 5100038032, 5100048340 |
| RD7Yehf HRC | RD7Yehf HRC | 5100006337, 5100006341 |
| RD7Yehf LRC | RD7Yehf LRC | 5100006340 |
| RD10Yehf LRC | RD10Yehf LRC | 5100070502 |
| RD7Yehfb LRC | RD7Yehfb LRC | 5100006345 |
| RD7Yeh HRC | RD7Yeh HRC | 5100006467, 5100006336 |
| RD7Yeh LRC | RD7Yeh LRC | 5100006335 |
| RD7Yehfb HRC | RD7Yehfb HRC | 5100006346 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
