BPM Top Drive Centralizing & Jaw Assembly Spare Parts: 9703641220, 9703641130, 9703641014

1. Introduction

This specification covers full sets of centralizing assemblies, jaw plate components, tooth seat structures and matched sealing accessories exclusively manufactured for Beijing Petroleum top drive systems, complying with API 7K drilling equipment standards and onshore drilling mechanical operation specifications. These core structural parts target common field failures that plague daily drilling operations, including unstable drill string centralization, insufficient jaw clamping force, tooth plate wear and slippage, sealing ring aging leakage and hydraulic cylinder positioning deviation. All components pass raw material hardness testing, 2000-hour vibration fatigue bench testing and high-pressure hydraulic sealing inspection, maintaining zero dimensional deviation from original factory standards. This document acts as a dual standard reference for bulk spare parts procurement and on-site technical troubleshooting, helping drilling teams solve long-standing pain points of frequent accessory replacement and inconsistent clamping precision.

2. Core Purpose & Target User Needs

These top drive centralizing and jaw assembly parts are precisely adapted to conventional BPM series onshore top drive equipment, widely used in medium-depth oil and gas drilling, tripping and breakout operations. The targeted user groups include oilfield equipment procurement teams, on-site drilling maintenance technicians, rig supervisors and drilling engineering personnel. In long-cycle high-load working conditions, field crews often face practical operational troubles: worn jaw plates leading to drill pipe slippage, deformed righting rings causing drill string eccentricity, failed sealing components triggering hydraulic system pressure loss, and aging guide assemblies resulting in inaccurate mechanical positioning. The core purpose of these standardized replacement parts is to restore original clamping rigidity and centralizing accuracy, stabilize hydraulic cylinder driving performance, and maintain consistent drill string positioning during continuous drilling and pipe handling processes.

3. Product Introduction

The full product lineup covers front and rear centralizing and jaw system core components, including 9703641220 front righting assembly, 9703641130 rear righting assembly, matched front and rear righting rings and supporting sleeves, 9703641180 front tooth seat assembly, 9703641150 rear tooth seat assembly and 9703641014 jaw plate. It also integrates complete guide structural parts, bullet bezels, righting pins, plugs and limit rings, together with professional sealing series including DA17 dust ring, RU3 sealing ring, support rings and various O-rings. The matched hydraulic cylinder, piston and back cover components form a complete closed-loop clamping and centralizing system, supporting full disassembly and replacement of top drive back pliers and centralizing mechanisms.

4. Core Function Description

Front and rear righting assemblies and righting rings undertake drill string centering tasks, correcting drill pipe eccentricity and avoiding eccentric wear during high-speed rotation. Tooth seat assemblies and jaw plates provide stable friction clamping force, firmly locking drill strings during tripping and breakout to prevent slippage. Guide assemblies and righting pins ensure accurate mechanical positioning of moving parts, eliminating structural jitter and positioning deviation. Complete sealing rings and dust rings isolate external mud, dust and moisture, maintaining stable internal hydraulic pressure. The matched hydraulic cylinder and piston assembly provides power output for clamping actions, ensuring fast and sensitive response of the back pliers system under rated working pressure.

5. Structural Features

All load-bearing and friction components adopt high-hardness alloy steel forging and integral heat treatment, with surface hardness reaching 280HB to resist long-term friction and impact wear. Centralizing rings and guide rings adopt precision turning process, keeping circular runout below 0.03mm to guarantee drill string centering accuracy. Sealing accessories adopt composite rubber and metal skeleton structure, sustaining stable sealing performance under 28MPa continuous hydraulic pressure. All assembly gaps and mounting holes strictly follow original equipment tolerance standards, enabling zero-modification direct installation. The optimized integrated structural design reduces assembly clearance and effectively weakens equipment vibration during high-load operation.

6. Applicable Working Conditions

This series of top drive centralizing and jaw accessories adapts to conventional onshore oilfield working environments, with ambient temperature adaptability ranging from -40°C to 60°C. Mechanical structural parts can withstand continuous vibration load of 15g, suitable for long-cycle 24-hour uninterrupted drilling operations. Sealing and dust-proof components resist mud erosion and particle abrasion, adapting to complex working conditions with high dust and high mud content. The hydraulic matching parts stably operate under standard top drive hydraulic system pressure, fully meeting pipe clamping, centralizing and positioning demands in medium-depth conventional well drilling and well repairing projects.

7. Maintenance & Care Recommendations

Professional field maintenance experience confirms standardized upkeep greatly extends component service life. Inspect jaw plates and tooth seat wear status every 60 days, replace severely worn parts in advance to avoid pipe slipping accidents. Check righting ring deformation and guide ring wear quarterly, calibrating centering deviation timely. Clean dust rings and sealing surfaces every month to prevent mud accumulation from causing sealing failure. Inspect hydraulic cylinder pressure holding performance every 90 days, replace aging O-rings and support rings to avoid pressure loss. Field engineers remind that mixed use of non-standard accessories will cause structural misalignment and accelerate overall component wear.

We supply the following spare parts:

9703641220 Front righting assembly 139

9703641053 Supporting sleeve 139

9703641025 Front righting ring 197

9703641130 rear righting assembly 139

9703641053 Righting sleeve 139

9703641030 Rear righting ring 197

9703641180 Front tooth seat assembly 127

9703641047 Front tooth seat 127

9703641014 jaw plate 127

9703641019 Dental plate

9703641150 Rear tooth deer assembly 127

9703641044 rear seat 127

9703641014 jaw plate 127

9703641019 Dental plate

9703641240 Front guide assembly 127

9703641029 Front guide ring 127

9703641024 Bullet bezel

9703641033 Righting pin

9703641032 rear direction bad 127

DA17 type dust ring 5303990100

RU3 type sealing ring 5303990090

Support ring 5303990080

O-ring 5303100900

Support ring 5303990070

Seal 5303930060

O-ring 5303100890

Plug 9703641035

Plug 9703641034

Righting sleeve 9703641033

Rear guide ring 168 9703641031

Rear righting ring 197 9703641030

Front guide ring 168 9703641028

bezel 9703641027

9703641026 Beijing Petroleum Top Drive

Front Centralizing Ring 197 9703641025

Seal 9701000005

spring stop 9703641024

Front clamp body 9703641049

Front tooth seat 168 9703641020

Tooth plate 9703641019

Back seat 168 9703641016

Jaw holder 168 9703641013

Righting Set 168 9703641008

Front bezel 9703641007

Front blocking plate 9703641006

Piston 9703641042

Back cover 9703641004

Limit ring 9703610003

Backstop ring 9703610002

Hydraulic cylinder 9703610001

8. On-Site Fault Maintenance Cases

Case 1: Changqing Oilfield Drill Pipe Slippage Fault

Working condition: BPM top drive, 380t continuous clamping load, medium-depth conventional well drilling. Fault phenomenon: Worn 9703641014 jaw plate caused insufficient clamping force and occasional pipe slippage. Solution: Replace new jaw plate and calibrate clamping gap. Repair index: Clamping force restored to rated standard value, no slippage during 6 months of continuous operation. Customer feedback: Pipe handling stability improved significantly with zero safety hazards.

Case 2: Shengli Oilfield Drill String Eccentric Rotation Fault

Working condition: Standard drilling load, long-cycle continuous rotation operation. Fault phenomenon: Deformed front righting ring caused obvious drill string eccentricity and eccentric wear. Solution: Replace 9703641220 front righting assembly and matching guide ring. Repair index: Drill string rotation runout controlled within standard tolerance range. Customer feedback: Drilling vibration reduced, tool wear rate decreased obviously.

Case 3: Tarim Oilfield Hydraulic Pressure Holding Failure

Working condition: Desert high-temperature working condition, frequent clamping action. Fault phenomenon: Aging RU3 sealing ring caused hydraulic system slow pressure loss. Solution: Replace full set of sealing rings and support rings. Repair index: System maintains stable pressure holding for over 8 hours continuously. Customer feedback: Back pliers action sensitivity fully recovered.

Case 4: Daqing Oilfield Mechanical Positioning Jitter Fault

Working condition: Low-temperature field environment, repeated tripping operation. Fault phenomenon: Worn righting pin and guide assembly caused structural positioning jitter. Solution: Replace righting pin and front guide assembly. Repair index: Mechanical positioning error eliminated, operation smooth. Customer feedback: Equipment operates stably in seasonal temperature changes.

9. Frequently Asked Questions

10. Procurement Guide & Technical Support

We specialize in the professional production and stable supply of full-series BPM top drive centralizing assemblies, jaw plate components and matched sealing spare parts. Every batch of products undergoes strict material inspection, dimensional calibration and hydraulic performance testing before delivery, with complete factory test reports and industry standard certification documents provided to support accurate model selection and standardized procurement management. We provide professional technical services including part matching verification, on-site installation guidance, daily maintenance training and common fault troubleshooting. Focusing on high-standard manufacturing quality, we deliver high-reliability drilling accessories to help oilfield enterprises reduce equipment failure frequency, lower long-term maintenance costs and stabilize drilling construction efficiency. You can provide accurate part numbers and equipment matching demands to obtain professional parameter matching and technical consulting support.