HMB Master Bushing 37.5″ for National RT

NOV MPCH Equivalent Master Bushing 37.5"/ Rotary Bushing / HMB Master Bushing, Wirth Equivalent Master Bushing 37.5", DenCon Equivalent Master Bushing 37.5" , Varco Equivalent Master Bushing 37.5", Oilwell Equivalent Master Bushing 37.5", Emsco Equivalent Master Bushing 37.5", HMH Equivalent Master Bushing 37.5", National Equivalent Master Bushing 37.5", Forum Equivalent Master Bushing 37.5", BVm Equivalent Master Bushing 37.5", Master Bushing for Varco Rotary Table, Master Bushing for Wirth Rotary Table, Master Bushing for DenCon Rotary Table, Master Bushing for NOV Rotary Table, Master Bushing for Oilwell Rotary Table, Master Bushing for Emsco Rotary Table, Master Bushing for HMH Rotary Table, Master Bushing for National Rotary Table, Master Bushing for FORUM Rotary Table, Master Bushing for BVm Rotary Table, Master Bushing for Varco 37.5" Rotary Table,Master Bushing for Wirth 37.5" Rotary Table, Master Bushing for Dencon 37.5" Rotary Table, Master Bushing for NOV 37.5" Rotary Table, Master Bushing for Oilwell 37.5" Rotary Table, Master Bushing for Emsco 37.5" Rotary Table, Master Bushing for HMH 37.5" Rotary Table, Master Bushing for National 37.5" Rotary Table, Master Bushing for FORUM 37.5" Rotary Table, Master Bushing for BVm 37.5" Rotary Table, Master Bushing for Varco 49.5" Rotary Table, Master Bushing for DenCon 49.5" Rotary Table, Master Bushing for NOV 49.5" Rotary Table, Master Bushing for Oilwell 49.5" Rotary Table, Master Bushing for Emsco 49.5" Rotary Table, Master Bushing for HMH 49.5" Rotary Table, Master Bushing for National 49.5" Rotary Table, Master Bushing for FORUM 49.5" Rotary Table, Master Bushing for BVm 49.5" Rotary Table

HMB Master Bushing 37.5″ for National RT

Spectrum Drilling Tools International manufactures Hinged Type Pin Drive Master Bushings, Latch Type, designed to fit National 37.1/2”–49.1/2” Rotary Tables for drilling operations. Our HMB Master Bushings strictly adhere to the latest API-7K specifications, and we are proud holders of a valid API-7K Monogram for Master Bushings.

These HMB Master Bushings can be used with any of the Insert Bowls No. 1, 2, or 3 to accommodate various sizes of tubulars. When paired with Insert Bowls, they can handle Drill Collars, Tubing, and Casing ranging from 2.3/8” to 13.3/8”. The HMB Master Bushing securely locks into the rotary table with its latch and features an inbuilt locking mechanism to secure the insert bowls. Additionally, we offer NOV Equivalent and interchangeable HMB Master Bushings for your convenience.

Features & Benefits

API Standard
  • Spectrum Drilling Tools International parent company has an API-7K License for Master Bushings for the past 23 years and continues to do so.
  • We supply Master Bushings that meet API-7K specifications and bear the API-7K Monogram.
Design Features
  • This Master Bushing is compatible with API-standard rotary tables, including those from NOV, Drillmec, and Wirth.
  • Our Master Bushings are equivalent to and can be interchanged with NOV Master Bushings.
  • Rated Load Capacity : 750 Ton
  • Design life : 10 Years
Health, Safety and Environment
  • Our Master Bushings are produced in full compliance with HSE (Health, Safety, and Environment) guidelines.
  • Easy fitment and installation help minimize rig downtime.
  • Our master bushings undergo a comprehensive series of both destructive and non-destructive tests to ensure they not only meet but exceed API quality requirements. This stringent testing process ensures that only top-quality products are supplied to our customers.
Lead Time
  • We provide fast delivery with a maximum lead time of 07 days for Master Bushings.
  • We maintain a substantial inventory of stock to ensure minimal wait times for our customers, reducing rig downtime. Our spares are typically available within one week.
S. No. Description ABI Part No. Ref NOV Part No.
1
Master Bushing Hinged Type Pin Drive 37.1/2" Bare Body (Latch Type) suitable for National Rotary Table.
3710-H
6601-1
2
Insert Bowl No. 1 for 11.3/4" to 13.3/8" tubular for National Rotary Table
3751
6610
3
Insert Bowl No. 2 for 9.5/8" to 10.3/4" tubular for National Rotary Table
3752
6609
4
Insert Bowl No. 3 for 2.3/8" to 8.5/8" tubular for National Rotary Table
3753
6608
5
Lifting Sling for Bowls (Two Hook Hype)
3754
1021
6
Lifting Sling for Master Bushing (Four Hook Type)
3716
6699
7
Bit Breaker Adapter Plate
3717
1816
Scroll to Top