Revised Concise Version for 4812112200 Drum Travel Motor

R7C217458 is an integrated two-speed planetary torque hub drive motor, a direct OEM interchange replacement for Ingersoll Rand PRO PAC70 SD-70D single drum soil compactors. Custom configurable options are supported, including reworked SAE standard hydraulic ports, OEM matching mounting flanges, heavy-duty floating oil seals and two-speed variable displacement internal structures. Fitted with carburized hardened planetary gear assemblies, high-load tapered roller bearings and multi-layer pressure-resistant oil seals, this unit delivers consistent power output under continuous compaction vibration, heavy climbing torque and frequent hydraulic pressure spikes on construction sites. Fully compatible with the original Fairfield factory torque hub assembly, all overall dimensions, hydraulic port layouts, mounting flanges and output splines achieve 1:1 matching for plug-and-play installation, no extra cutting, machining or pipeline refitting required.

The R7C217458 hydraulic torque hub is a compact high-torque all-in-one travel drive assembly built for heavy-duty single drum rollers, providing reliable traction power for the drive wheel of Ingersoll Rand SD-70D compactor. It operates at a rated working pressure of 210 bar, with a maximum intermittent peak pressure of 260 bar, stable enough for long-duration full-load construction operations. Commonly deployed for highway subgrade compaction, asphalt road paving and municipal earthmoving projects, it boasts outstanding impact resistance and extended service life under sustained vibration and static heavy loads. As the core wheel traction component of the SD-70D roller, it features an integrated heavy cast housing, reinforced output bearing set and spring-applied hydraulic release multi-disc parking brake, capable of enduring frequent pressure surges to fit harsh muddy, dusty construction working conditions.

This torque hub assembly accepts a full range of customized upgrades: reinforced gear tooth profiles, heavy-duty full seal kits, optimized two-speed shift control valves and reinforced output splines, perfectly matching the original main hydraulic pump system of PRO PAC70 SD-70D rollers. Customized variants remove unnecessary transition adapters, connecting seamlessly to the compactor drive wheel via precise spline and port alignment. It serves as the ideal heavy-traction drive solution for single-drum compactors with compact wheel mounting space and modular hydrostatic drive chassis, extensively used in highway, municipal and water conservancy infrastructure construction projects.

Q: What machine does the R7C217458 torque hub fit?

A: R7C217458 is an OEM torque hub exclusively for Ingersoll Rand PRO PAC70 SD-70D single drum soil compactors, serving as the rear wheel integrated travel drive core assembly.

Q: Is it a direct OEM replacement?

A: Yes. All flanges, bolt positions, splines, ports and dimensions are1:1 OEM matched. No modification is needed, supporting plug-and-play installation.

Q: What are the key pressure and torque parameters?

A: Rated pressure: 210 bar; peak pressure: 260 bar; max continuous torque: 28500 N·m. The 2-speed variable structure adapts to full-load compaction and slope climbing.

Q: Does it match the original machine hydraulic system?

A: Fully compatible. It perfectly fits the SD-70D original closed-loop hydrostatic system and main hydraulic pump, ensuring synchronized and stable driving performance.

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

A: Yes. It is integrated with a spring-applied & hydraulic-release multi-disc safety parking brake, realizing reliable anti-slip parking on slopes.

Q: Are custom options available?

A: Yes. We offer upgraded heavy-duty seals, reinforced gear sets, optimized shift valves and customized splines/ports for harsh working conditions.

Q: What hydraulic oil and maintenance cycle is recommended?

A: Use ISO VG46 anti-wear hydraulic oil. Inspect oil condition every 500 hours; replace oil and check all seals every 2000 hours.

Q: How to fix common leakage and overheating issues?

A: Retighten bolts for minor leakage; replace professional seal kits for persistent leakage. Overheating is usually caused by deteriorated or insufficient hydraulic oil. Timely oil replacement and wear inspection are recommended. Unauthorized disassembly is prohibited.

Q: What is the warranty policy?

A: We provide a12-month factory warranty, with free technical support and replacement parts for non-artificial damage under standard use.