NOV Elmagco 7838W Aux Brake Baylor

Manufacturer: NOV
Model: 7838W
Type: Refurbished
Location: UAE

NOV Elmagco 7838W Aux Brake Baylor Details

• 2 units - Reconditioned Elmagco Baylor Brake Model 7838W Fully Overhauled 2013 Unused and stored undercover
• 1 unit - Newly Overhauled July 2024 Elmagco 7838 W Baylor Brake #RHZ 11052W
• Recertified Elmagco Model 7838W Aux Brake Baylor
• (Less Coupling), Serial No: RHZ11052W

NOV Elmagco 7838W Aux Brake Baylor Specifications

• Principal of Operation: Induced Eddy Current Braking
• Torque-Maximum @ 150 RPM, lb-ft (n-m): 117,000 (158,631)
• Torque @ 50 RPM, lb-ft (n-m): 96,000 (130,159)
• Number of Magnets: 2
• Number of Coils per Magnet: 2
• Coil Internal Resistance @ 68° F (20° C), Ohms: 13.4-13.9, 11.0-11.5 Prior to July 1985)
• Total Brake Input Resistance @ 68° F (20° C), Ohms: 3.9-4.1, 2.8-2.9 (Prior to July 1985)

Brake Excitation

• Voltage, volts DC: 250
• Current-Coil Temperature @ 68° F (20° C), Amps DC: 74.07, 89.29 (Prior to July 1985)
• Power Input @ 68° F (20° C), kW: 18.5, 22.3 (Prior to July 1985)

Cooling Water Requirements

• Flow @ 100° F (38 Deg. C) At Brake Inlet, gpm (lpm) 150 (568)
• pH: 7.0-7.5
• Maximum Discharge Temperature, oF (oC): 165° (74°)

Cooling Water Piping

• Inlet: (2) 2in NPT
• Outlet: (2) 4in NPT
• Overflow: (2) 1.25in NPT

Overall Sizes

• Height, in (mm): 78 (1,981)
• Width, in (mm): 38 (965)
• Weight, lbs (kg): 28,000 (12,701)
• Inertia (WK2)-Shaft and Rotor, lb-ft2 (kg-cm2): 37,938 (15,987,118)
• Weight-Shaft and Rotor, lbs (kg): 6,458 (2,929)

Shaft Size (Oilfield Standard)

• Diameter, in (mm): 7.5 in (190.5)
• Taper per foot, in (mm): 1 ¼ in (31.75)

Average Rotor Radial Clearance (Air Gap) Over Magnets (Without Paint or Other Build up), in (mm): 0.055-0.065 (1.397-1.651)

Maximum RPM: 600

**IMPORTANT BUYERS NOTICE**

All items are Sold AS-IS WITH NO WARRANTY expressed or implied. Items offered for sale may be damaged, inoperable and/or missing parts. We STRONGLY RECOMMEND a careful review of each photo and video and PERSONALLY INSPECT the item(s) before making a decision to purchase. Free Oilfield Quote IS NOT responsible for ANY missing or damaged equipment, part, item or accessory and shall not be held liable for any damage prior to or during the removal and/or delivery of the equipment. Any and all agreements contrary to the above disclaimer must be in writing and agreed upon up front and prior to any transaction.