The Thwaites Spicer Intermediate Disc (OEM T53654) is a replacement steel mating disc designed for the oil-immersed brake assembly of compatible Thwaites dumpers. The disc forms part of the multi-plate braking system, working alongside the friction discs to transmit braking force and provide controlled deceleration of the machine.
Manufactured for use within the demanding environment of a heavy-duty dumper axle, the disc is designed to operate within the oil-immersed brake pack while withstanding repeated braking loads, heat and continuous machine operation. Replacing worn or damaged discs helps maintain correct brake pack operation and reliable braking performance.
FUNCTION AND OPERATION
- Forms part of the oil-immersed multi-plate brake assembly
- Provides a steel mating surface for the brake friction plates
- Transfers braking forces through the brake pack
- Allows controlled friction between the mating and friction plates
- Designed for repeated braking cycles and elevated operating temperatures
- Replacement for a worn or damaged original intermediate brake disc
TECHNICAL DETAILS
- OEM Number: T53654
- Manufacturer: Thwaites
- Component: Intermediate brake disc
- Type: Steel mating disc
- Application: Spicer axle/brake assembly
- Brake system: Oil-immersed multi-plate brake
- Quantity: 6 in the applicable 4.5-tonne Powerswivel rear axle assembly
- OD: 178mm
- ID: 114mm
- Thickness: 3.65mm
TYPICAL APPLICATIONS
- Fits: 3 Ton models with Dana Spicer Axle inc MACH 2070
- Thwaites Powerswivel dumpers
- Thwaites 4.5-tonne Powerswivel
- Spicer rear axle assemblies
- Oil-immersed brake systems
- Dumper brake repair and overhaul
IMPORTANT INFORMATION
When replacing an intermediate brake disc, the complete brake pack should be inspected for wear, contamination and damage. Friction plates, mating discs, seals and associated components should be checked to ensure the brake assembly operates correctly.
Always confirm the machine model and serial number before ordering, as Thwaites used different axle and brake configurations across its dumper range. Ensure the correct replacement disc is selected for the specific Spicer axle assembly.