NOV 7838 Elmagco Brake

General Information

• Manufacturer: National Oilwell Varco (NOV)

• Type: Eddy Current Brake (Water Cooled)

• Model Number: 7838

• Serial Number: X112160W

• Part Number: 100037716_001

• Estimated Weight: 28,500 lbs

• Maximum RPM: 600

Electrical Specifications

• Max Input D.C. Amperage (at 20°C): 74 A

• Max Input D.C. Voltage: 250 VDC

Cooling Requirements

• Minimum Coolant Flow Rate: 150 GPM

• Maximum Coolant Inlet Temperature: 100°F

• Maximum Coolant Discharge Temperature: 165°F

Mechanical Clearances

• Inboard Bearing and Housing Radial Clearance: 0.013 in.

• Average Inboard Air Gap: 0.053 in.

• Average Outboard Air Gap: 0.051 in.

Environmental Rating

• Max Ambient Temperature: 55°C