KERUI E-1500-DC (ZJ50D) Drawworks OEM Spare Parts

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.