Bomag 08180861 Safety Nut

The Bomag 08180861 Safety Nut is a genuine OEM fastening component designed for Bomag tandem rollers across the BW 80, BW 90, BW 100, BW 120, and BW 125 series, including the BW 80 AD-5, BW 90 AD-5, BW 90 AC-5, BW 100 AD-3, BW 100 AC-3, BW 100 AD-4, BW 100 AC-4, BW 100 AD-5, BW 100 AC-5, BW 100 ADM-5, BW 100 ACM-5, BW 100 SCC-5, BW 100 SLM-5, BW 120 AC-3, BW 120 AD-3, BW 120 AD-4, BW 120 AC-4, BW 120 AD-5, BW 120 AC-5, BW 120 SL-5, BW 125 AD-4, BW 125 AC-4, BW 90 SL-5, and BW 90 SL-5 CC. As a genuine OEM part sourced directly from Bomag, it meets the exact specifications of the original hardware. This Safety Nut is a direct, like-for-like replacement that installs without modification, keeping your tandem roller operating as intended.

Key Features

• Genuine OEM Fastener Integrity — manufactured to Bomag's exact thread profile, torque rating, and locking specification for this Safety Nut application, so the joint holds under sustained vibration load
• Direct Hardware Match — references part number 08180861 directly in Bomag's parts catalog, confirming a drop-in fit with no reworking of mating hardware
• Broad Tandem Roller Coverage — fits an extensive range of BW 80, BW 90, BW 100, BW 120, and BW 125 tandem rollers across the -3, -4, and -5 generation series, including AC, AD, ADM, ACM, SCC, SL, SLM, and CC variants
• Vibration-Resistant Locking — the safety nut design resists self-loosening under the continuous vibratory forces inherent to tandem roller operation, maintaining clamp load between service intervals
• Critical Joint Security — a loose or failed safety nut can allow fastened assemblies to shift or separate during operation; replacing a worn nut promptly with the correct OEM part protects the integrity of the surrounding assembly

A safety nut is a self-locking fastener engineered to resist loosening when subjected to vibration, dynamic loads, and thermal cycling — conditions that standard nuts cannot reliably withstand over time. On tandem rollers like the BW series, where drum assemblies and drivetrain components operate under constant vibratory stress, safety nuts are used at critical joints to maintain clamping force between scheduled maintenance intervals. When a safety nut wears, strips, or loses its locking element, the fastened joint becomes vulnerable to movement, accelerating wear on surrounding components and creating a potential safety concern that warrants immediate attention.

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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