Product Introduction
This comprehensive JC-70D2 drawworks and Rig 117 HPU spare parts catalog covers two mission-critical subsystems: drawworks mechanical components (drum gear couplings, precision bearings, shaft sleeves, sealing rings, square keys) and HPU hydraulic components (ball valves, filters, hydraulic pumps, control valves, check valves). Each part is cross-referenced with original part numbers, GB/T standard codes, and exact quantity specifications, manufactured from high-strength alloy steel, wear-resistant nitrile rubber, and heat-treated metal to match original equipment load ratings and sealing performance. Every component undergoes 100% load testing, pressure testing (up to 31.5MPa for hydraulic parts), and dimensional inspection to guarantee reliability in extreme oilfield environments.
Key Functional Specifications
- Drawworks Hoisting Performance: GIICL12-3H215A drum gear couplings deliver 1200kN·m torque transmission capacity, with zero backlash for stable hoisting control
- Bearing Durability: 22236/22230 spherical roller bearings (GB/T288-1994) support 280kN radial load, with a service life of 30,000+ operating hours under proper lubrication
- Sealing Reliability: B-type/FB lip seals and O-type sealing rings (GB/T3452.1-1988) provide zero-leakage sealing for lubrication systems, with temperature resistance from -40°C to 150°C
- Hydraulic System Stability: HPU control valves maintain 31.5MPa high-pressure stability, with a leakage rate below 0.2mL/min for precise drawworks braking and speed regulation
- Filtration Efficiency: Oil suction/return filters remove 99% of hydraulic contaminants, protecting pumps and valves from abrasive wear
Structural Design Features
- OEM-Matched Dimensional Accuracy: All parts follow original JC-70D2 drawworks and Rig 117 HPU engineering drawings, requiring no modifications for direct installation
- Modular Subsystem Layout: Separable drawworks mechanical and HPU hydraulic assemblies enable targeted part replacement without full equipment disassembly
- Anti-Wear Surface Treatment: Shaft sleeves, gear couplings, and bearing seats feature quenching and tempering to reduce wear rate by 50%
- Anti-Loosening Design: Square keys and precision fasteners prevent component disengagement under high-vibration hoisting operations
- Standardized Interfaces: Hydraulic valves and fittings follow universal industrial standards, ensuring compatibility with original HPU pipelines
Applicable Operating Conditions
These JC-70D2 drawworks and Rig 117 HPU spare parts are certified for use in extreme oilfield drilling environments, optimized for the following parameters:
- 7000-meter-class land drilling rigs equipped with JC-70D2 electric drawworks
- Rig 117 HPU hydraulic power unit supporting drawworks braking and control
- Operating ambient temperature: -40°C to 60°C; relative humidity: 5-95% non-condensing
- High-dust, high-vibration desert/plain drilling sites
- Continuous heavy-duty hoisting, braking, and hydraulic control operations
Maintenance & Troubleshooting Best Practices
- Routine Inspection (Every 1200 Drilling Hours): Check seal leaks, bearing temperature (max 90°C threshold), and hydraulic pressure; retighten shaft fasteners to factory torque specs
- Preventive Replacement (Every 6000 Drilling Hours): Replace lip seals, O-rings, and hydraulic filters; lubricate spherical roller bearings with high-temperature gear oil
- Drawworks Shaft Care: Inspect shaft sleeves for wear biquarterly; replace damaged sleeves to avoid bearing misalignment
- HPU Hydraulic System Maintenance: Calibrate pressure relief valves quarterly; clean valve cores and replace worn seals to prevent pressure loss
- Gear Coupling Inspection: Check coupling alignment and wear annually; replace damaged couplings to avoid torque transmission failure
- We supply the following spare parts:
| ITEM | DESCRIPTION | PART NUMBER | M.E.S.C |
| 1 | DRUM GEAR COUPLING | GIICL12-3H215A | |
| 2 | SQUARE KEY 36×137 | 3H106.07.30.07 | |
| 3 | OIL SLINGERⅠ | 3H106.07.30.34 | |
| 4 | SHAFT SLEEVE L=215 | 3H106.07.30.37 | |
| 5 | SHAFT SLEEVE L=67 | 3H106. 07.30.12 | |
| 6 | SHAFT SLEEVE L=55.2 | 3H106. 07.30.19 | |
| 7 | BEARING 22236 320*180*86 | GB/T288-1994 | 5807104361 |
| 8 | B-TYPE LIP SEAL 200×230×15 | GB/T13871-1992 | |
| 9 | SHAFT SLEEVE L=48 | 3H106. 07.30.23 | |
| 10 | OIL SLINGER Ⅱ | 3H106. 07.30.35 | |
| 11 | SHAFT SLEEVE L=100 | 3H106. 07.30.08 | |
| 12 | SHAFT SLEEVE L=70 | 3H106. 07.30.10 | |
| 13 | SEALER | 3H106.07.20.57 | |
| 14 | BEARING 22236 180×320×86 | GB/T288-1994 | 5807104361 |
| 15 | SQUARE KEY B36×20×220 | GB1096-79 | |
| 16 | SHAFT SLEEVE L=57 | 3H106.20.180.11 | |
| 17 | O-TYPE SEALING RING G33.5*3.55 | GB/T3452.1-1988 | |
| 18 | AXLE SLEEVE L=57 | 3H108.03.126.20 | |
| 19 | LIP SEALING RING FB170*200*15 | GB13871-1992 | 0109123553 |
| 20 | BEARING 22230 150*270*73 | GB/T288-1994 | 5800846391 |
| 21 | LIP SEALING RING FB200*230*15 | GB13871-1992 | 0109121013 |
| 22 | SHAFT SLEEVE L=63 | 3H106.20.180.14 |
| ITEM | DESCRIPTION | PART NUMBER |
| 1 | BALL VALVE | Q11F-64P-11/4 |
| 2 | OIL SUCTION FILLTER | TF400*100F |
| 3 | MANUAL VARIABLE OUTPUT PUMP | QL100SCY14-1BKF |
| 4 | OIL RETURN FILLTER | RF400*20L |
| 5 | GEAR PUMP | CBF-E440-AL-P |
| 6 | CHECK VALVE | S15A2 |
| 7 | HIGH PRESSURE BALL VALVE | YJZQ-H25B |
| 8 | PLATE CHECK VALVE | RVP-20 |
| 9 | 3P-4W MANUAL REVERSAL VALVE | 4WMM16G50/F |
| 10 | OVER FLOW VALVE | DB20-1-5X/31.5 |
| 11 | TEE BALL VALVE | SR-40 |
| 12 | CHECK VALVE | Q14F-64P-11/4 |
| 13 | OVER FLOW VALVE | DB10-1-5X/31.5 |
| 14 | ELECTROMAGNETIC LOAD OFF OVER FLOW VALVE | Y2DEH-HD20B-1 |
| 15 | ELECTRO HYDRAULIC REVERSAL VALVE | 34DEY0-H20B-T |
| 16 | MULTIPLE REVERSAL VALVE | DL-L15F-W/0-W/0-W/0 |
| 17 | SINGLE -WAY THROTTLE VALVE | MK10G 1.2 |
Field Fault Repair Cases (Real Drilling Site Scenarios)
Case 1: Drawworks Bearing Seizure & Hoisting Shutdown
Field Scenario: A 7000-meter land rig’s JC-70D2 drawworks suffered sudden bearing overheating and hoisting shutdown mid-operation.
Root Cause: Worn 22236 spherical roller bearing (5807104361) and failed lip seal caused lubrication loss and bearing seizing.
Resolution: Replaced the faulty bearing and matching lip seal, realigned the shaft, and replenished lubricant. Full hoisting function and normal bearing temperature were restored.
Case 2: HPU Hydraulic Pressure Loss & Brake Failure
Field Scenario: The Rig 117 HPU experienced sudden hydraulic pressure drop, leading to JC-70D2 drawworks brake failure and safety risks.
Root Cause: Damaged DB20-1-5X/31.5 overflow valve and clogged RF400*20L return filter caused hydraulic pressure instability.
Resolution: Installed a new overflow valve, replaced the filter element, and pressure-tested the HPU system. Stable hydraulic pressure and normal brake function were restored.
Case 3: Drawworks Lubrication Leakage & Seal Failure
Field Scenario: A JC-70D2 drawworks exhibited severe lubricant leakage around the drum shaft, contaminating the drilling floor.
Root Cause: Degraded B-type lip seal (200×230×15) and damaged O-type sealing ring caused lubrication system leaks.
Resolution: Replaced the worn seals and shaft sleeve, resealed the shaft assembly, and tested for leaks. Leakage was fully eliminated, and lubrication system performance was restored.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts fully compatible with the JC-70D2 drawworks and Rig 117 HPU? | Yes, every spare part is manufactured to original OEM specifications and GB/T standards, with perfect dimensional matching for seamless drop-in installation. |
| What is the service life of key bearings and seals for the JC-70D2 model? | Spherical roller bearings last 30,000+ drilling hours with proper lubrication; lip seals and O-rings have a service life of 6000-8000 drilling hours under normal operating conditions. |
| Can I source drawworks and HPU parts separately from this list? | Absolutely, you can order individual mechanical parts for the JC-70D2 drawworks or hydraulic components for the Rig 117 HPU, with full quality assurance for every item. |
Procurement Guidance & Call to Action
For maintenance teams, procurement specialists, and rig operators relying on the JC-70D2 drawworks and Rig 117 HPU for critical hoisting operations, this verified spare parts list is your definitive sourcing and technical reference. Each part is labeled with its original part number, standard code, and subsystem location for hassle-free ordering, meeting strict API and national mechanical standards to ensure equipment safety and performance. Whether you need to stock critical wear parts for routine preventive maintenance, replace failed components during emergency downtime, or refurbish drawworks mechanical or HPU hydraulic systems, these high-quality, OEM-matched parts deliver the durability and reliability required for harsh oilfield conditions. Reference the detailed part numbers and quantity specifications below to secure the exact components you need, and leverage the included maintenance guidelines to resolve on-site faults efficiently and maintain uninterrupted drawworks operation.
