101-1066-009 104-3055-006 Danfoss OMR Char-Lynn Gerotor Motor

Product Overview

The OMR / OMRS / BMRS / S/T 103 / 158 / 185 / 101 / 104 / TE/TB series and specific models 101-1066-009, 101-2104-009, 104-3055-006 are Danfoss OMR and Char-Lynn (Eaton) H-Series / 2000 Series low-speed high-torque Gerotor orbital hydraulic motors. Featuring precision Gerotor / Geroler designs, they deliver high starting torque, high volumetric efficiency, and reliable radial load capacity. Fully interchangeable with genuine Danfoss / Char-Lynn units and subjected to 100% simulated operating condition testing, these motors are optimized for micro excavators and other compact mobile equipment drives and work functions.

Technical Specifications 

• Model: 101-1066-009 / 101-2104-009 (Char-Lynn H Series typical)
  • Displacement: approx. 14–23 in³/rev (approx. 230–370 cm³/rev range, code-dependent)
  • Continuous differential pressure: approx. 100–140 bar
  • Intermittent/peak differential pressure: approx. 150–175 bar
  • Maximum continuous speed: approx. 200–600 rpm
  • Maximum continuous torque: medium range (displacement-dependent)
  • Control type: Fixed-displacement Gerotor spool valve, bidirectional
  • Approximate weight: 10–15 kg
• Model: 104-3055-006 (Char-Lynn 2000 Series typical)
  • Displacement: approx. 14.9 in³/rev (approx. 244 cm³/rev)
  • Continuous differential pressure: approx. 200–205 bar (3000 psi)
  • Intermittent/peak differential pressure: approx. 240–260 bar
  • Maximum continuous speed: approx. 300 rpm
  • Maximum continuous torque: approx. 660 Nm
  • Maximum continuous flow: approx. 75 L/min
  • Control type: Fixed-displacement Geroler disc valve
  • Approximate weight: 13–15 kg
• OMR / OMRS / BMRS series reference (103 / 158 / 185 etc.)
  • Displacement coverage: 50–375 cm³/rev
  • Continuous pressure drop: approx. 140–175 bar
  • Intermittent pressure drop: approx. 175–200 bar
  • Maximum continuous speed: 150–800 rpm (displacement-dependent)
  • Control type: Fixed-displacement orbital, needle bearing versions available

(Note: Exact parameters vary with shaft, flange, and port configuration. Data based on typical values from Danfoss and Char-Lynn official technical literature.)

Key Technical Advantages

• Precision Gerotor / Geroler rotor set minimizes internal leakage and friction, delivering high volumetric efficiency and smooth low-speed operation.
• High starting torque characteristics ideal for micro excavators and frequent start-stop, heavy-load applications.
• Robust bearing and shaft seal design supports elevated side loads and return pressure for extended service life.
• Full drop-in interchangeability with genuine Danfoss / Char-Lynn motors plus 100% simulated duty-cycle testing ensure reliable performance while reducing maintenance costs.

Application Areas

Micro excavator drives and work functions, compact construction equipment, agricultural attachments, conveyor and feeding systems, sweepers, and light mobile hydraulic equipment.

Expert Maintenance Tips

Verify system cleanliness and oil viscosity before installation. Ramp pressure gradually on start-up to avoid dry running. Periodically inspect shaft seals and bearings. Prefer verified interchangeable units for replacement to ensure exact port and flange match. Observe intermittent duty time limits and maintain proper oil cleanliness to maximize service life.