Bomag 40003762 Inner Ring

The Bomag 40003762 Inner Ring is a genuine OEM component designed for a wide range of Bomag single drum rollers and tandem rollers, including BW 211, BW 213, BW 216, BW 219, BW 226, BW 177, BW 145, and BW 212 series machines, as well as BW 144 AD-2, BW 154 AD-2, BW 170 AD, BW 174 AC AM, BW 174 AD AM, BW 184 AD tandem rollers, and the C 850 C. Sourced directly from Bomag, this inner ring matches the exact specifications of the original part it replaces, ensuring correct installation without guesswork. This component is a direct-fit replacement, confirmed across multiple roller generations including -3, -4, -4i, -5, and -40 variants listed in Bomag's official fitment data.

Key Features

• Genuine OEM Tolerancing — manufactured to Bomag's precise dimensional specifications, ensuring correct bearing seat contact and load distribution for this inner ring application
• Direct Drop-In Replacement — engineered to the same geometry as the original, fitting the bearing assembly exactly as installed at the factory across confirmed model variants
• Broad Roller Coverage — fits a wide range of Bomag single drum rollers and tandem rollers, including BW 211, BW 213, BW 216, BW 219, BW 226, BW 177, BW 145, BW 212, BW 184 AD, BW 170 AD, BW 174 AC AM, BW 174 AD AM, BW 144 AD-2, BW 154 AD-2, and C 850 C
• Bearing Integrity Restored — a worn or damaged inner ring compromises the entire bearing assembly, leading to drum vibration issues, uneven compaction, and accelerated wear on surrounding components; this replacement restores full bearing function

The inner ring is a core element of a rolling bearing assembly, forming the inner race on which the rolling elements — typically balls or rollers — travel. It transfers load between the rotating shaft and the bearing, maintaining controlled rotation and alignment under the heavy dynamic loads that compaction equipment generates. When the inner ring wears, develops pitting, or loses dimensional accuracy, the bearing loses its ability to support the shaft correctly, which can cause vibration, heat buildup, noise, and eventual failure of the drum drive or vibratory system — making timely replacement critical to keeping the machine compacting at full efficiency.

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.

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.