Bomag Belleville Spring | Part 09290900

The Bomag 09290900 Belleville Spring is a genuine OEM component designed for a wide range of Bomag BW-series tandem rollers, single drum rollers, and pneumatic tyred rollers. Sourced directly from Bomag, this spring delivers the precise load characteristics and dimensional accuracy the original design requires. Compatible models include BW 174 AD, BW 177 D-4, BW 177 DH-4, BW 177 PDH-4, BW 27 RH, BW 28 RH, BW 161 AD-4, BW 190 AD-4, BW 202 AD-4, BW 203 AD-4, BW 191 AD-5, BW 206 AD-5, and many additional BW-series variants across the -3, -4, -5, and -50 generation ranges. When a Belleville spring wears or loses its spring rate, clamping force and pressure consistency suffer — using part number 09290900 restores the correct preload to keep these systems operating as intended.

Key Features

• Genuine OEM Spring Rate Accuracy — manufactured to Bomag's original load-deflection specification, so this Belleville spring delivers the exact clamping force the assembly was engineered around
• Direct Drop-In Replacement — matches the original profile, outside diameter, and thickness for straightforward installation without reworking the surrounding stack or hardware
• Broad BW-Series Coverage — fits tandem rollers including BW 141, BW 151, BW 154, BW 161, BW 170, BW 174, BW 180, BW 184, BW 190, BW 191, BW 202, BW 203, BW 205, and BW 206 variants, single drum rollers in the BW 177 family, and pneumatic tyred rollers BW 24 RH, BW 25 RH, BW 27 RH, and BW 28 RH
• Sustained Preload Under Repeated Stress — Belleville springs are subject to continuous compression and release cycles; OEM-grade material and heat treatment resist fatigue and permanent set over the service life of the roller
• Verified Genuine Part — order by part number 09290900 with confidence that you are receiving an authentic Bomag component, not an unverified substitute

A Belleville spring — also called a disc spring or conical washer spring — is a cone-shaped washer designed to exert a precise, controlled axial load when compressed. In Bomag rollers, these springs are commonly used in brake assemblies, clutch packs, and tensioning systems where consistent clamping force must be maintained even as components experience vibration and thermal cycling. When a Belleville spring fatigues or takes a permanent set, the preload it was supplying drops, leading to slipping, inconsistent engagement, or accelerated wear on adjacent components. Replacing a worn spring with the correct genuine OEM part number 09290900 restores the designed clamping force and protects the integrity of the surrounding assembly.

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.