Product Introduction
This curated assortment covers all mission-critical wear components, mechanical assemblies, sealing parts, and brake hardware for the KERUI E-1500-DC (ZJ50D) drawworks, including oilfield chains (RC160/RC120/08B series), high-torque clutches (LT1170/LT1070), precision bearings (22238CC/W33, NU238ECMA), friction wheels, sprockets, lip seals, O-rings, brake caliper components, fasteners, axle sleeves, pneumatic valves, and hydraulic/pneumatic fittings. All parts comply with API 4F drilling equipment standards, ISO 9001 quality benchmarks, and KERUI OEM performance requirements, with full material traceability and factory load testing up to rated 1500HP capacity. The lineup features heat-treated alloy steel structural parts, wear-resistant friction materials, oil-resistant elastomer seals, and precision-machined drive components, fully mapped to KERUI OEM part numbers for simplified inventory management and emergency field repairs.
Functional Performance Specifications
These KERUI E-1500-DC drawworks spare parts deliver industry-leading reliability and operational stability: oilfield drive chains meet SY/T 5595-1997 standards, with a tensile strength rating of 80,000+ lbs and a service life of 12,000+ operating hours; LT-series pneumatic clutches provide 250T/200T torque capacity with zero slippage under full load; precision spherical roller and cylindrical bearings support heavy radial/axial loads with an L10 service life of 25,000+ hours; lip seals and O-rings maintain zero leakage for lubrication and pneumatic systems, with a maximum leak rate of ≤0.005 SCFM; inertia brake devices deliver consistent braking torque to prevent runaway loads; and sprocket/gear assemblies ensure 99.5% efficient power transmission for smooth hoisting.
Structural & Material Features
- OEM Precision Machining: All metal components are machined to tight tolerances (±0.0005 inch), ensuring perfect fitment with E-1500-DC drawworks modules and eliminating premature wear from misalignment
- High-Strength Material Selection: Heat-treated alloy steel for chains, bearings, and fasteners; friction-resistant composite materials for brake blocks and clutch plates; nitrile/FKM elastomers for seals; and corrosion-resistant steel for hardware to withstand harsh drilling environments
- Modular Repair Design: Pre-matched seal kits, bearing sets, and brake assemblies reduce field overhaul time by 65%, minimizing non-productive time on the rig floor
- Load-Bearing Reinforcement: Thick-wall axle sleeves and reinforced bearing seats distribute heavy hoisting loads evenly, preventing structural fatigue and cracking
- Wear-Resistant Surface Treatment: Hardened gear/sprocket teeth and coated brake components reduce friction wear and extend component lifespan under high-cycle operation
Applicable Operating Conditions
These spare parts are built for harsh onshore and offshore drilling environments, optimized for KERUI E-1500-DC 1500HP drawworks used in drill string hoisting, casing running, and heavy-load rig floor operations. They perform reliably in ambient temperatures ranging from -30°F to 380°F, resist exposure to drilling mud, corrosive brine, and gear oil, and endure continuous high-cycle hoisting loads. Components are suitable for land rigs, desert drilling sites, and offshore platforms, complying with API 4F and global oilfield safety standards.
Maintenance & Service Recommendations
- Inspect oilfield drive chains (RC160/RC120) for wear, elongation, and link damage every 500 operating hours; replace full chain assemblies when elongation exceeds 2% to prevent breakage
- Lubricate chains, bearings, and clutch components with high-temperature gear oil every 300 operating hours to reduce friction and prevent premature wear
- Check lip seals, O-rings, and gasket sets quarterly for hardening, cracking, or extrusion; replace full seal kits during scheduled overhauls (every 12 months or 4,000 operating hours)
- Inspect brake blocks, caliper pins, and return springs monthly; replace worn brake blocks when thickness is reduced by 50% to maintain safe braking performance
- Test clutch engagement and pneumatic valve operation every 6 months to ensure responsive control and eliminate slippage
- Stock critical high-wear parts (chains, bearings, seals, brake blocks, clutches) at recommended minimum levels to avoid unplanned downtime during emergency repairs
- We supply the following spare parts:
| SPARE PARTS FOR DRAWWORKS KERUI TYPE ZJ50D E- 1500 -DC | |||
| 1 | RC160*3 160-3×200 oilfield chain (200 Pitch) | SY/T 5595-1997 | EA |
| 2 | RC120*4 120-4×146 oilfield chain (146 Pitch) | SY/T 5595 -1997 | EA |
| 3 | Chain 08B-2×156 (RC40-2) (156 Pitch) | JB-T1243-2006 | EA |
| 4 | Clutch | LT 1170/250T | EA |
| 5 | Friction wheel | KR106.32.20.02 | EA |
| 6 | Cotter 6.3X50 | GB/T 91-2000 | EA |
| 7 | Nut M30 | GB/T 6178-1986 | EA |
| 8 | Bolt M30X100 | GB/T 28-1988 | EA |
| 9 | Low clutch drive plate | KR106.32.20.03 | EA |
| 10 | Square key 36×230 | KR106.32.20.04 | EA |
| 11 | Axle sleeve L=79 | KR106.32.20.05 | EA |
| 12 | Lip type seal ring FB 220X250X15 | GB/T 13871-1992 | EA |
| 13 | Cotter 5×50 | GB/T 91- 2000 | EA |
| 14 | Nut A16 | GB/T 5647-2000 | EA |
| 15 | Bearing 22238CC/W33 | GB/T 288-1994 | EA |
| 16 | Bearing NU238ECMA | GB/T 283-1994 | EA |
| 17 | Axle sleeve L=120 | KR106.32.20.14 | EA |
| 18 | Left bearing box | KR106.32.20.16 | EA |
| 19 | Axle sleeve L=106.5 | KR106.32.20.18 | EA |
| 20 | Gasket 30 | GB/T 93-1987 | EA |
| 21 | Bolt M30X180 | GB/T 5782-2000 | EA |
| 22 | NUT M30 | GB/T 6170-2000 | EA |
| 23 | Bolt M27X90 | KR106.32.20.35 | EA |
| 24 | Nut M27 | GB/T 6178-2000 | EA |
| 25 | Axle sleeve L=116 | KR106.32.20.19 | EA |
| 26 | Right bearing seat | KR106.32.20.20 | EA |
| 27 | Axle sleeve L=123 | KR106.32.20.21 | EA |
| 28 | Nut A10 | GB/T 5647 -2000 | EA |
| 29 | Fittings body A10/R1/4″ | GB/T 5626-2008 | EA |
| 30 | High clutch | LT 1070/200T | EA |
| 31 | Low clutch drive plate | KR106.32.20.29 | EA |
| 32 | Axle sleeve L=90 | KR106.32.20.30 | EA |
| 33 | Fittings body R1/2″-M24x1.5 | KR106.07.20.50 | EA |
| 34 | Quick release valve | 116.15 | EA |
| 35 | Bearing 22240CC/W33 | GB/T 288 -1994 | EA |
| 36 | Sealing element | KR106.07.20.40 | EA |
| 37 | Fittings body | KR106.07.20.42 | EA |
| 38 | Rubber washer ?14x?25 t3 | KR106.32.20.38 | EA |
| 39 | Orthogonal joint | KR106.07.20.43 | EA |
| 40 | Sealing ring | KR106.07.20.44 | EA |
| 41 | Nozzle | KR106.07.20.46 | EA |
| 42 | Pressing sleeve | KR106.07.20.45 | EA |
| 43 | Fittings body M16x1.5-R1/4″ | KR106.07.20.62 | EA |
| 44 | Grease fitting joint | KR106.16.30.25 | EA |
| 45 | Fittings body M39x2-R1″ | KR106.16.20.16 | EA |
| 46 | Clamp assembly | KR129.08.01.00 | EA |
| 47 | Nut M20 | GB/T 6170 -2000 | EA |
| 48 | Bolt type “U” M20 | KR106.07.21.01 | EA |
| 49 | U Bolt | KR129.08.01.02 | EA |
| 50 | Inertia brake device LT600/125 | KR106.22.31.00 | EA |
| 51 | Fittings body M20X1.5/M22X1.5 | KR106.07.32.01 | EA |
| 52 | Gasket 14 | JB1002-77 | EA |
| 53 | external gear ring | KR106.07.30.22 | EA |
| 54 | Nut M27 | GB/T 6170-2000 | EA |
| 55 | Bolt M27X100 | GB/T5783-2000 | EA |
| 56 | Sprocket z=22 p=38.1 | KR106.32.30.03 | EA |
| 57 | Sprocket z=26 p=38.1 | KR106.32.30.04 | EA |
| 58 | Little Sprocket P=12.7 Z=62 | KR106.22.30.12 | EA |
| 59 | Lip seal FB 210x180x15 | GB/T 13871-1992 | EA |
| 60 | Left bearing seat | KR106.32.30.16 | EA |
| 61 | gasket t1 | KR106.32.30.17 | EA |
| 62 | gasket t0.5 | KR106.32.30.18 | EA |
| 63 | gasket t1 | KR106.07.30.27 | EA |
| 64 | gasket t0.5 | KR106.07.30.28 | EA |
| 65 | gasket t0.25 | KR106.07.30.29 | EA |
| 66 | gasket t1 | KR106.07.30.08 | EA |
| 67 | O-sealing ring 200×5.3 | GB/T3452.1-2005 | EA |
| 68 | Friction wheel | KR106.07.30.06 | EA |
| 69 | Inner gear Sleeve | KR106.07.30.07 | EA |
| 70 | gasket t0.5 | KR106.07.30.35 | EA |
| 71 | Split pin 4×40 | GB/T 91 -2000 | EA |
| 72 | Nut M20 | GB/T 6178 -2000 | EA |
| 73 | Bolt M20x70 | GB/T 31.1-1988 | EA |
| 74 | Right bearing seat | KR106.32.30.08 | EA |
| 75 | Gasket t1 | KR106.32.30.14 | EA |
| 76 | Sprocket P=50.8 Z=19 | KR106.32.40.04 | EA |
| 77 | axle sleeve L=32 | KR106.32.40.06 | EA |
| 78 | Left bearing seat | KR106.32.40.07 | EA |
| 79 | axle sleeve L=177.5 | KR106.32.40.09 | EA |
| 80 | Sprocket P=38.1 Z=66 | KR106.32.40.12 | EA |
| 81 | shifting fork | KR106.07.42.00 | EA |
| 82 | annular gear Z=44 m=8 | KR106.07.40.16 | EA |
| 83 | Sprocket P=38.1 Z=47 | KR106.32.40.16 | EA |
| 84 | external gear ring Z=44 m=8 | KR106.07.40.17 | EA |
| 85 | Bearing NU1038ML | GB/T 283 -1994 | EA |
| 86 | Bearing 23038CC/W33 | GB/T 288-1994 | EA |
| 87 | Gasket 27 | GB/T 93- 1987 | EA |
| 88 | Bolt M27x90 | GB/T 5783-2000 | EA |
| 89 | Gasket t1.5 | KR106.32.40.24 | EA |
| 90 | Gasket t1 | KR106.32.40.25 | EA |
| 91 | Gasket t0.5 | KR106.32.40.26 | EA |
| 92 | axle sleeve L=88 | KR106.32.40.19 | EA |
| 93 | Right bearing seat | KR106.32.40.20 | EA |
| 94 | Lip seal FB 190x220x15 | GB 13871-1992 | EA |
| 95 | Sprocket P=50.8 Z=27 | KR106.32.40.22 | EA |
| 96 | Jaw | 1822122004 | EA |
| 97 | Connecting rod | KR106.22.180.01 | EA |
| 98 | gear shift rod | KR106.32.183.00 | EA |
| 99 | Oil baffle plate t10 | KR106.22.180.03 | EA |
| 100 | Discharge filter | WUI-A100x40 | EA |
| 101 | Gear oil pump | P124A085TRZA17- 55 | EA |
| 102 | elastic coupling | CC-80 | EA |
| 103 | Key B6x35 | GB/T 1096-1979 | EA |
| 104 | Sprocket t=12.7 z=47 | KR129.09.01.03 | EA |
| 105 | Key B8x32 | GB/T 1096-1979 | EA |
| 106 | cycloid gear oil pump | 3KNB-40B | EA |
| 107 | Shadt elastic ring A type 50 | GB/T 894.1-1986 | EA |
| 108 | Anti-collision valve FP-L6 | Qy434 | EA |
| 109 | 90° hose assembly?C?10-?-2000 | GB/T 9065.5/3683 | EA |
| 110 | Joint M18x1.5-NPT1/4” | GB/T 14383-2008 | EA |
| 111 | Fittings body R1/2” | GB/T 14383-2008 | EA |
| 112 | fittings body R1/2″-M16x1.5 | KR106.16.270.10 | EA |
| 113 | fittings body M18x1.5-M16x1.5 | KR106.22.270.04 | EA |
| 114 | Nut M18x1.5 | GB/T 6173-2000 | EA |
| 115 | fittings body R1/4″-M16x1.5(D) | GB/T 14383 -2008 | EA |
| 116 | fittings body R1/4″-M16x1.5 | GB/T 14383 – 2008 | EA |
| 117 | Tee joint Rc1/4” | GB/T 14383-2008 | EA |
| 118 | shuttle valve SM-L6 | QY425 | EA |
| 119 | fittings body NPT1/4”-M16x1.5(D) | GB/T 14383-2008 | EA |
| 120 | 90° joint G1/8″-M16x1.5(D) | GB/T 14383- 2008 | EA |
| 121 | 90°d joint G3/8″-M16x1.5(D) | GB/T 14383-2008 | EA |
| 122 | Quick release valve | KPJ-L10 | EA |
| 123 | fittings body Rc3/8″-M18x1.5 | KR106.22.270.08 | EA |
| 124 | Nut M16x1.5 | GB/T 6173 -2000 | EA |
| 125 | fittings body Rc3/8″-M16x1.5 | KR106.22.210.08 | EA |
| 126 | Nut A10 | GB/T 5647-2008 | EA |
| 127 | fittings body Rc1/2″-M27x1.5 | KR106.22.270.09 | EA |
| 128 | Nut M27x1.5 | GB/T 810-1988 | EA |
| 129 | Hose assembly?C?16-? | GB/T 9065.5/3683 | EA |
| 130 | Hose assembly?C?10-?-2500 | GB/T 9065.5/3683 | EA |
| 131 | Hose assembly?C?10-?-12000 | GB/T 9065.5/3683 | EA |
| 132 | Joint M16x1.5(D)-R 1/2” | GB/T 14383-2008 | EA |
| 133 | Hose assembly?C?8-?-1800 | GB/T 9065.5/3683 | EA |
| 134 | Regulating relay | QY411 | EA |
| 135 | Air filter | QSL-L25 | EA |
| 136 | Roller | KR106.09.12.00 | EA |
| 137 | Bearing 1207 35x72x17 | GB/T281-1994 | EA |
| 138 | Shaft | KR106.09.10.03 | EA |
| 139 | Check ring | KR106.09.10.04 | EA |
| 140 | Oil cup M10x1 | JB/T 7940.1-1995 | EA |
| 141 | Small shaft II | KR129.01.04 | EA |
| 142 | Shaft | KR129.01.05 | EA |
| 143 | Lip type seal ring FB 80X100 | GB 13781-1992 | EA |
| 144 | V fabric insertion seal ring (A)70X95 | HG4-337-66 | EA |
| 145 | Compressed spring | KR129.01.06 | EA |
| 146 | Gear Z=34 m=3 | KR129.01.09 | EA |
| 147 | Bearing 6208(40X80X18) | GB/T 276-1994 | EA |
| 148 | Circlips for shaft-type 40 | GB/T894.2-86 | EA |
| 149 | Lip seal ring FB 40×55 | GB 13781-1992 | EA |
| 150 | Lip type seal ring FB 50×68 | GB 13781-1992 | EA |
| 151 | Round nut M68x2 | GB/T 812-1988 | EA |
| 152 | Gasket 68 | GB/T 858-1988 | EA |
| 153 | axle sleeve II | KR129.01.12 | EA |
| 154 | Shell | KR129.01.14 | EA |
| 155 | Spring seat | KR129.01.15 | EA |
| 156 | Flat head screw M6x15 | GB/T 68-2000 | EA |
| 157 | O-sealing ring 75X5.3 | GB/T 3452.1-2005 | EA |
| 158 | Hollow shaft water hoist | 116.18C.00 | EA |
| 159 | Main service cyliner assembly | KG-00 | EA |
| 160 | Spring, Caliper return | KQ-48 | EA |
| 161 | Pin, Emergency support | KQ-12 | EA |
| 162 | Spacer 35 | KQ-55 | EA |
| 163 | Pin, Cylinder | KQ-08 | EA |
| 164 | Cap Screw | KQ-51 | EA |
| 165 | Pin, Caliper Pivot | KQ-10 | EA |
| 166 | Spacer 42 | KQ-56 | EA |
| 167 | Pin, Brake Pad | KQ-11 | EA |
| 168 | Long Bolt of Brake Block | KQ-49 | EA |
| 169 | Bolt of Brake Block | KQ-50 | EA |
| 170 | Bush | KQ-33 | EA |
| 171 | Brake block | KQ-21 | EA |
| 172 | Bush | KQ-32 | EA |
| 173 | Bush | KQ-34 | EA |
| 174 | O ring | KG-81 | EA |
| 175 | BA seal ring | KG-82 | EA |
| 176 | Dust-Proof ring | KG-83 | EA |
| 177 | Wiper, Rod | KG-84 | EA |
| 178 | BA seal ring | KG-85 | EA |
| 179 | Combined Seal Washer 14 | KG-72 | EA |
| 180 | One-Way Oil Injecting Valve | KG-61 | EA |
| 181 | Articulated Body | KQ-59 | EA |
| 182 | Hollow Adapter | KQ-54 | EA |
| 183 | Bush | KG-31 | EA |
| 184 | Bush | KB-36 | EA |
| 185 | Bush | KB-35 | EA |
| 186 | Bush | KB-37 | EA |
| 187 | Bush | KB-38 | EA |
| 188 | Pin, Emergency support | BG-13 | EA |
| 189 | Bush | BQ-34 | EA |
| 190 | Emergency cyliner assembly | BG-00C | EA |
| 191 | Pin, Cylinder | BQ-09 | EA |
| 192 | Pin, Caliper Pivot | BQ-10 | EA |
| 193 | Pin, Brake Pad | BQ-11 | EA |
| 194 | Bush | BQ-33 | EA |
| 195 | Brake block | BQ-22 | EA |
| 196 | Bush | BQ-32 | EA |
| 197 | Bush | BG-31 | EA |
| 198 | Pressure joints | BQ-53 | EA |
| 199 | O Ring | BG-81 | EA |
| 200 | BA Seal ring | BG-82 | EA |
| 201 | BA Seal Ring | BG-89 | EA |
| 202 | Wiper, Rod | BG-88 | EA |
| 203 | Working plunger | BG-07 | EA |
| 204 | Spring | BG-47 | EA |
| 205 | Ring, Guide | BG-05 | EA |
| 206 | Seal ring | BG-86C | EA |
| 207 | Dust-Proof ring | BG-87 | EA |
| 208 | Bush | BB-36 | EA |
| 209 | Bush | BB-35 | EA |
| 210 | Bush | BB-37 | EA |
| 211 | Bush | BB-38 | EA |
| 212 | axle sleeve L=198 | KR106.32.30.07 | EA |
| 213 | Casing 10 | GB/T 5646-2008 | EA |
| 214 | Inner joint Rc1/4”-M18x1.5(D) | GB /T 14383-2008 | EA |
| 215 | Joint M18x1.5-NPT1/4” | GB/ T 14383 – 2008 | EA |
| 216 | Hose assembly ?C?25-? | GB /T 9065.5/3683 | EA |
| 217 | Clamp | KR129.08.01.01 | EA |
| 218 | Drum gear coupling | G-315-B | EA |
| 219 | Bearing 6310 2RS | GB/T 276-1994 | EA |
| 220 | Small shaft I | KR129.01.03 | EA |
| 221 | Disc | P553-04 | EA |
| 222 | Pipe sleeve 16 | GB/T 5646-2000 | EA |
| 223 | Pipe sleeve 10 | GB/T 5646 -2000 | EA |
| 224 | Two cylinder and lock unit Ref (PRA-DA-080-0100-0 -2-2-4-1-1-ACC) | PRA-DA-080-0100- 0 2-2-4-1 | EA |
| 225 | Friction wheel | KR106.32.20.28 | EA |
Field Failure Repair Case Studies
Case 1: RC160 Drive Chain Breakage & Hoisting Downtime
A ZJ50D rig experienced sudden hoisting shutdown due to a fractured RC160 oilfield chain, caused by excessive wear and lack of lubrication. Installing OEM RC160*3 drive chains (SY/T 5595-1997 compliant) restored power transmission, eliminated breakage risks, and resumed normal drilling operations.
Case 2: LT1170 Clutch Slippage & Torque Loss
The E-1500-DC drawworks suffered severe clutch slippage during heavy hoisting, traced to worn friction wheels (KR106.32.20.02) and damaged drive plates. Replacing OEM clutch friction components restored full 250T torque capacity, eliminating slippage and ensuring consistent load handling.
Case 3: Spherical Roller Bearing Failure & Abnormal Vibration
Excessive vibration and noise from the drawworks main shaft indicated a failed 22238CC/W33 bearing, caused by contamination and fatigue. Swapping in OEM precision bearings eliminated vibration, restored smooth shaft rotation, and prevented further damage to internal components.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all KERUI E-1500-DC (ZJ50D) drawworks? | Yes, this parts list is designed exclusively for the KERUI E-1500-DC 1500HP drawworks paired with ZJ50D rigs, matching OEM part numbers and API 4F specs for full drop-in fitment. |
| Do the drive chains meet SY/T 5595-1997 oilfield standards? | Absolutely, all RC160/RC120 oilfield chains comply with SY/T 5595-1997 standards, matching KERUI OEM tensile strength and wear resistance requirements. |
| Can these parts be used for routine maintenance and emergency drawworks repairs? | Yes, these OEM-grade spares work for scheduled preventive maintenance, full drawworks overhauls, and emergency field repairs to minimize costly rig downtime. |
Procurement Guidance & Closing Value Statement
This KERUI E-1500-DC (ZJ50D) drawworks spare parts catalog serves as both a formal procurement benchmark and a technical troubleshooting reference, designed to eliminate the risks of substandard aftermarket parts, reduce long-term maintenance expenses, and uphold the safety and operational reliability of your 1500HP drilling drawworks. Every part is a verified OEM-certified component that guarantees perfect fitment, consistent high-load performance, and compliance with API 4F and industry quality standards, making it the definitive resource for maintaining KERUI E-1500-DC drawworks.
