473-003
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BOS 3-Rib Gearbox Jockey Unit 50mm with Base Plate
The BOS 50mm 3-Rib Gearbox Jockey Unit is designed for caravanning and trailer use, allowing easy lifting using a standard cordless drill or manual handle. It removes the need for manual cranking, offering smooth height adjustment, reliable gearing, and stable ground contact.
Features
- Patented BOS Gearbox: Smooth gear mechanism with 12mm drive adapter for quick cordless drill operation.
- 3-Rib Height Adjustment: Precision ribs ensure a secure, non-slip clamp hold.
- Marine-Grade Stainless Inner Pipe: 42mm stainless steel inner tube resists corrosion and grit.
- Articulated Base Plate: Ball joint base pivots up to 30° to maintain contact on uneven surfaces.
- Built-in Serviceability: Integrated grease nipple for easy lubrication of bearings, drive thread, and gearbox.
Specifications
- Outer Tube Diameter: 50mm
- Travel Stroke: 400mm (up to 990mm max extension with base plate; 1,108mm with 120mm extension)
- Load Capacity: Tested to 1,800kg LMATS with rigid clamp
- Drive Fitting: 12mm slotted drive (not standard 1/2")
- Finish: Heavy-wall CNC machined steel with textured black powder coat
Includes
- BOS 3-Rib 50mm Gearbox Jockey Unit (473-003)
- Articulated Base Plate (010-062)
- 120mm Stainless Steel Extension Tube
- 12mm Drill Drive Piece (020-007)
- Manual Handle (020-003)
- Quick Release Safety Pins
- BOS Travelling Strap (370-Strap)
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