7HPA02FZZ8B029 is an integrated 2-stage planetary torque hub gearbox, a direct OEM replacement for original Fairfield drives on mini skid steer wheel loaders. It supports custom SAE hydraulic ports, OEM mounting flanges and heavy-duty floating seals. Fitted with carburized hardened gears and high-load bearings, it delivers stable torque amid frequent start-stops and uneven site terrain. All dimensions, flanges and splines match genuine Fairfield units 1:1 for plug-and-play installation without extra machining.

This compact high-torque wheel drive powers mini skid steer loader traction wheels. It runs at 210 bar rated pressure with a 260 bar peak pressure, stable for long full-load operation. Ideal for landscaping, municipal minor works and narrow-space indoor construction, it offers great impact resistance and long service life. Built with a reinforced housing, heavy output bearings and spring-on hydraulic-release multi-disc parking brake, it withstands pressure surges in muddy, dusty job sites.

Customization options include reinforced gear teeth, heavy seal kits, adjustable reduction ratios and strengthened output splines, compatible with mainstream hydraulic motors for mini loaders. No extra adapters are required for seamless wheel connection via matched splines and ports. It is the perfect compact traction drive for small hydrostatic wheel loaders, widely used in landscape, municipal and light earthmoving projects.

Q: What machine does the 7HPA02FZZ8B029 gearbox fit?

A: 7HPA02FZZ8B029 is an OEM Fairfield torque hub gearbox specially for mini skid steer wheel loaders, acting as the core wheel travel drive assembly.

Q: Is it a direct OEM replacement?

A: Yes. All mounting flanges, bolt holes, splines, hydraulic ports and overall dimensions match genuine Fairfield units 1:1. No machining modification required for plug-and-play installation.

Q: What are the key pressure and torque parameters?

A: Rated working pressure: 210 bar; peak intermittent pressure: 260 bar; max output torque: 8000 N·m. Two-stage planetary structure provides strong traction for bumpy ground and slope climbing.

Q: Does it match standard hydraulic motors for mini loaders?

A: Fully compatible. It adapts to mainstream axial piston and orbit hydraulic motors for mini skid steer loaders to deliver stable driving power.

Q: Does it include a built-in parking brake?

A: Yes. Equipped with integrated spring-applied, hydraulic-release multi-disc parking brake to prevent sliding on slopes.

Q: Are custom options available?

A: Yes. Customizable items include reinforced gear sets, heavy-duty seal kits, adjustable reduction ratios and customized output splines & hydraulic ports.

Q: What lubricant and maintenance cycle is recommended?

A: Use 85W-140 heavy-duty gear oil or ISO VG220 industrial gear oil. Check oil level and sealing every 500 working hours; fully replace gear oil and inspect all seals every 2000 hours.

Q: How to resolve common leakage and overheating faults?

A: Retighten mounting bolts for slight oil leakage; replace complete seal kits for persistent leaks. Overheating mainly results from degraded or insufficient gear oil. Replace lubricant and check worn parts timely; unauthorized disassembly is forbidden.

Q: What is your warranty policy?

A: 12-month factory warranty provided. Free technical consultation and spare part replacement available for non-human damaged products under normal operation.