NOV 650 Ton Top Drive

Type: Used

Condition: Excellent

Location: Houston, TX

NOV 650 Ton Top Drive

There are distinct benefits that differentiate our top drive upgrade package versus third parties simply installing new motors with higher horsepower. The upgrade is less expensive than installing new motors, provides significant improvements to performance, and ensures customers are receiving the quality and experience of the OEM. We collaborated with three engineering partners to conduct a comprehensive analysis of the TDS-11SA gearbox, allowing us to determine how stress and fatigue would be affected by the increase in horsepower.

NOV 650 Ton Top Drive for Sale

• To maintain the proven service life and design safety factor of the TDS-11SA while still enabling the upgrade, major internal changes were necessary to the gearbox.
• Compound and pinion gears and the bull gear mounting all required changes to accommodate the loads from the increase in power.
• Bearing sizes and housings, as well, had to be adjusted to accommodate the increased load.
• The gear box cover required new casting and machining to accommodate changes to the bearing.

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. You are strongly urged to carefully review each photo and video as well as personally inspect the item 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.