105-1007-006 Char-Lynn Eaton 2000 Series Orbital Motor 306.6cc

Product Overview

The 105-1007-006, 105-1006-006, 104-1391-006 and 104-1420-006 models belong to the Danfoss (formerly Eaton Char-Lynn) 2000 Series disc-valve Geroler orbital motors. Engineered for low-speed, high-torque applications, these motors feature a precision Geroler star and disc-valve distribution system that delivers high volumetric efficiency and true bi-directional performance. Our units are manufactured to exact original dimensions, mounting interfaces and performance parameters, guaranteeing full interchangeability with genuine Char-Lynn / Eaton / Danfoss 2000 Series motors. Every motor undergoes 100% simulated operating-condition testing for pressure, speed, torque and leakage, ensuring reliable performance in demanding mobile and industrial applications.

Technical Specifications 

• Model: 105-1007-006 (2000 Series Wheel, reference Model Code M02187AB03AA0100010000000AAAAF)
• Geometric displacement: 306.6 cm³/r (18.71 in³/r)
• Continuous pressure drop: approx. 205 bar (lower for larger displacements per series data)
• Peak / intermittent pressure: up to 310 bar (displacement and duty dependent)
• Maximum continuous speed: 246 rpm (at continuous flow)
• Maximum intermittent speed: approx. 365 rpm
• Continuous torque: approx. 765 Nm
• Intermittent torque: approx. 885 Nm
• Valve system: Disc valve with valve drive
• Orbital gear set: Geroler
• Mounting flange: 4-Bolt Wheel (pilot 108.0 mm, bolt circle 147.6 mm)
• Output shaft: 1-1/4″ tapered (SAE J501, 1:8 taper, 1-20 UNEF thread, 5/16″ square key)
• Main ports: 7/8-14 UNF-2B SAE O-Ring, side staggered
• Drain port: 7/16-20 UNF-2B SAE O-Ring
• Bearings: Front and rear tapered roller bearings
• Seal: NBR standard shaft seal
• Weight: approx. 12–14 kg (configuration dependent)

Related model reference data (official series):

• 105-1006-006: displacement approx. 244.3 cm³/r (14.9 in³/r), continuous speed approx. 308 rpm, continuous torque approx. 660 Nm
• 104-1391-006: displacement approx. 393.8–395 cm³/r (24.0 in³/r), continuous speed 191 rpm, continuous torque 775 Nm, continuous pressure drop approx. 155 bar
• 104-1420-006: displacement 489.0 cm³/r (29.84 in³/r), continuous speed 153 rpm, continuous torque 845 Nm, continuous pressure drop approx. 120 bar

Key Technical Advantages

1. Precision Geroler star and disc-valve distribution: High-accuracy machining and wear-resistant materials deliver excellent volumetric efficiency, high starting torque at low speed, and symmetrical bi-directional performance with industry-leading low pressure drop.
2. Heavy-duty tapered roller bearings and robust housing: Capable of high radial and axial loads, ideal for wheel-drive or heavy-duty applications, extending bearing and seal life.
3. Full interchangeability with 100% duty-cycle testing: Exact match to original mounting dimensions, shaft ends, ports and performance curves for drop-in replacement; every unit is pressure-, speed-, torque- and leakage-tested under simulated conditions.
4. Low-noise, long-life design: Optimized flow paths and distribution accuracy reduce hydraulic pulsation and noise; standard NBR seals with optional high-durability configurations suit wide temperature ranges and various hydraulic fluids.

Application Areas:

Agricultural machinery (combine reel drives, feed augers, spreaders), construction equipment (street sweepers, auxiliary drives, pavers), forestry and turf equipment (mowers, brush cutters), material handling and industrial systems (conveyors, winches, swing drives) — any low-speed, high-torque direct-drive application.

Expert Maintenance Tips:

Ensure oil cleanliness (ISO 4406 20/18/13 or better) before installation. Correctly connect the case drain (especially under high pressure) and keep case pressure within recommended limits. Start at low speed under no load and check for leaks or abnormal noise. Periodically replace shaft seals and inspect bearing preload; avoid prolonged operation beyond intermittent ratings. Use genuine or verified seal kits (e.g., 61258-000 series) during overhaul. Pair with proper filtration and cooling for maximum service life.