We supply below spare parts: TDS-11SA IBOP UPPER OEM#110103-500 NOV Varco TDS-11SA top drive IBOP assembly NOV TDS-11SA TOP DRIVE IBOP ASSY IBOP UPPER,OEM#110103-500 IBOP,UPPER,H2S TRIM OEM#110103-502 IBOP,LOWER,OEM#114706-500 IBOP,LOWER,H2S TRIM OEM#114706-502

We supply the ROTATING LINK ADAPTER ASSY - 500 TON. Quality guaranteed, welcome to order! Any question feel free to contact us.

We supply the high quality YOKE,IBOP ACTUATOR OEM#30157225 , any question free feel to contact us.

About the Lubrication and Maintenance of TDS-11SA（1）Selecting the proper gearbox oil TDS transmissions operate under a combination of heavy and shock loads. Under these conditions oil tends to extrude out of the gear mesh. Keeping an effective film of oil on the gear mesh requires oil with an AGMA “