The Bomag 09290014 Belleville Spring is a genuine OEM component designed for BW 90 AD, BW 135 AD, and BW 138 AD tandem rollers. Sourced directly from Bomag, this Belleville Spring delivers an exact dimensional and load-rate match to the original, ensuring the assembly it supports performs exactly as engineered. This part fits the full range of BW 90 AD, BW 135 AD, and BW 138 AD tandem rollers, making it a straightforward service solution when the original spring shows signs of fatigue or compression set.
Key Features
- Genuine OEM Load Consistency — manufactured to Bomag's original coned-disc spring specification, preserving the precise clamping force and deflection characteristics the assembly depends on
- Direct Drop-In Replacement — matches the original Belleville Spring in outer diameter, inner diameter, and cone height so it seats correctly without modification
- Confirmed Tandem Roller Fitment — verified for BW 90 AD, BW 135 AD, and BW 138 AD tandem rollers, covering multiple machine configurations in this series
- Sustained Clamping Force — a correctly functioning Belleville Spring maintains consistent axial preload on clutch, brake, or tensioning assemblies; a fatigued spring leads to slippage, uneven engagement, or premature wear of mating components
- Authentic Bomag Part Number — supplied under part number 09290014 for straightforward cross-referencing against service manuals and parts catalogs
A Belleville Spring — also called a coned-disc or conical washer spring — stores and releases axial force within a compact stack, making it ideal for clutch packs, brake assemblies, and tensioning systems where space is limited but consistent preload is critical. In tandem rollers like the BW 90 AD, BW 135 AD, and BW 138 AD, these springs absorb shock loads and maintain the clamping pressure that keeps rotating or sliding assemblies properly engaged. When a Belleville Spring loses its cone height through fatigue or takes a permanent set, the controlled preload disappears, leading to inconsistent engagement, vibration, or accelerated wear on surrounding components — making timely replacement essential to keeping the drivetrain and braking systems operating correctly.
Part Details
| Part Number | 09290014 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Belleville Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 90 AD | 00810081 |
| Tandem Roller | BW 138 AD | 00810105 |
| Tandem Roller | BW 135 AD | 00810120 |
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.
