ZDPE JC-70DB Drawworks Parts

Detailed Product Introduction

This ZDPE JC-70DB drawworks parts collection covers all core functional modules: high-load drum shaft bearings (SKF 23148CA, 22336CC series), gearbox input/output/intermediate shaft components, air-control and water-cooling pipeline accessories, lubrication system filters and pressure gauges, main/emergency brake caliper assemblies, and OEM-specified fasteners, seals, and O-rings. Each item is cross-referenced to JC-70DB drawing numbers, OEM part numbers, and assembly locations, ensuring perfect drop-in fit and zero compatibility errors for the JC-70DB drawworks and its DS/ODS gearboxes.

The parts are curated to address the highest-failure points of heavy-duty drawworks, including load bearings, hydraulic seals, brake caliper components, and lubrication system valves. Load-bearing components use forged alloy steel and premium SKF bearings, while seals and gaskets utilize oil-resistant, high-temperature materials to withstand drawworks operating conditions and drilling mud exposure.

Functional Performance & Value Highlights

• Eliminate Drawworks Downtime: OEM-matched components cut diagnostic and repair time by 68%, preventing costly drilling shutdowns from gearbox or brake failures.
• Heavy-Duty Load Capacity: Premium SKF spherical roller bearings and caliper hardware maintain full JC-70DB drawworks lifting ratings, withstanding peak operational loads without deformation.
• Leak-Proof Sealing Performance: OEM-spec O-rings, gaskets, and oil seals eliminate lubricant and coolant leaks, reducing fluid loss and environmental contamination risks.
• Extended Service Life: Forged fasteners, wear-resistant brake pads, and precision bearings double the lifespan of generic aftermarket parts, lowering long-term maintenance costs.

Structural & Engineering Features

• JC-70DB Exact Drop-In Fit: Precision-machined to match OEM drawing dimensions, no modifications or custom machining required for installation.
• Modular Subsystem Design: Parts grouped by drum shaft, gearbox, brake, air control, and lubrication systems for targeted sourcing and streamlined inventory management.
• High-Strength Material Construction: Load-bearing components use heat-treated alloy steel; seals use oil-resistant nitrile rubber for durability in harsh drilling conditions.
• Standardized Fastener Grades: All bolts and nuts meet GB/T 8.8/10.9 high-strength standards, ensuring secure assembly under heavy vibration and loads.

Applicable Operating Conditions

• These ZDPE JC-70DB drawworks parts are engineered for harsh onshore and offshore drilling environments where reliable drawworks performance is critical, including:
• 7000-meter class drilling rigs with heavy-duty hoisting operations
• 24/7 continuous drilling operations with high drawworks load demand
• Remote rig sites with limited access to specialized drawworks components
• Offshore platforms with high humidity, saltwater, and vibration conditions
• API 7K compliant drilling operations requiring certified drawworks components

Professional Maintenance & Troubleshooting Recommendations

1. Bearing Installation Protocol: Use thermal installation for SKF heavy-duty bearings, apply OEM-recommended lubricant, and verify radial clearance to prevent premature failure.
2. Seal & O-Ring Replacement: Replace all sealing components during gearbox or shaft overhauls; use only OEM-spec seals to maintain leak-proof performance.
3. Brake System Calibration: After installing new caliper assemblies, adjust brake pad clearance and test braking torque to meet JC-70DB safety specifications.
4. Lubrication System Flush: Clean oil lines and replace filters before installing new pressure gauges and valves to prevent contamination and blockages.
5. Scheduled Inspection Intervals: Inspect bearings, fasteners, and seals every 1,500 operating hours; replace worn components before catastrophic failure occurs.

We supply the following spare parts:

SR No	DRAWING REF. No.	PART No.	DESCRIPTION
1	10	JC70DB-17.00	Air-control system
2	12	JC70DB-02	Bolt M36x125
3	19	T100-006.00	Rope clamp
4	20	JC70DB-03	Bolt M36x120
5	32	JC70DB-05	Pin shaft Ø 9.5×32
6	34	JC70DB-07	Movable screw bolt M12x70
7	36	TYJ03.00	Wire line stop sheave
8	37	JC70DB-09	Bolt M36x160
9	40	JC50DB01-23	Adjustable washer III
10	41	JC70DB01-17	Adjustable washer I
11	45	JC70DB-31-00	Waterway conduit
12	48	GB/T6170-M36-6	Nut M36
13	49	GB/T6172-M36-6	Thin Nut M36
14	50	Z03-01	Check nut M36
15	51	GB/T5782-M12x25-4.6	Bolt M 12×25
16	52	GB/T93-87-12	Grower washer 12
17	53	GB/T62-M12-5	Saucer nut M12
18	54	GB/T5783-M16x40-8.8	Bolt M16x40
19	55	GB93-87-16	Grower washer 16
20	56	GB/T97.1-12	Plain washer 12
21	57	GB/T6170-M12-6	Nut M12
22	58	GB/T5782-M12x40-6.8	Bolt M 12×40
23	1	70DBSL-01.01.00	Inlet pipe assembly
24	2	70DBSL-01.02.00	Return pipe assembly
25	4	BV-RC1	Ball valve RC1
26	6	QB/HTQ-05	Hose adapter Փ 25x^35
27	7	RT-Փ 25x Փ 35	Rubber tube Փ 25x^35
28	15	RT-Փ 51x^63	Rubber tube Փ 51x Փ 63
29	4	GB/T3452.1-1992-90 X 5.3	O-ring 90X5.3
30	3	JC70DB-13.17.03	Pipe clamp assembly
31	12	GB3452.1-92-33.5X3.55	O-ring 33.5X3.55
32	13	GB3289.26-86-R1 1/4	Inside adapter R1 1/4
33	6	T005-010.00	Pipe clamp assembly Փ19
34	7	QB/HTQ-09	Adapter M 16×1.5G-R1/4
35	9	QB/HTQ-04	Hose connector Փ 16x Փ 28
36	12	QB/HTQ-03	Hose connector G10x019
37	14	FV-NPT1/2	Fast air release valve NPT 1/2
38	15	RF-XJ-L15	Rotary table fitting outlet XJ-L15
39	19	BV-RC1/2	Ball valve RC1/2
40	22	GB/T5781-2000-M12x50-4.8	Bolt M12x50
41	23	GB93-87-12	Washer 12
42	24	RT-Փ 16x Փ 28	Rubber tube Փ 16x Փ 28
43	25	RT-Փ 10X Փ 19	Rubber tube Փ 10xՓ 19
44	7	JC70DB-18.15.00	Pipe clamp assembly Փ50
45	8	JC70DB-18.16.00	Pipe clamp assembly Փ38
46	19	T001-1702	Copper packing
47	20	T001-1701	Copper packing
48	21	T005-001.00	Pipe clamp assembly Փ10
49	22	Z03-24	Electric type oil pressure gauge assembly
50	23	QB/HTQ-83	Casing Փ10
51	24	QB/HTQ-69	Nut M16x1.5
52	30	GB3452.1-92-28×3.55	O-ring 28×3.55
53	33	JB982-77-40	Combination washer 40
54	34	MG30G1.2	Choke valve MG30G1.2
55	37	JB1885-77-25I	A-pigeonholding type hose 25I –
56	38	GB3452.1-92-23.6×3.55	O-ring 23.6×3.55
57	40	JB1885-77-25 I	A-pigeonholding type hose 25I –
58	41	JB1885-77-25I	A-pigeonholding type hose 25I –
59	43	Z03-38	Oil pressure detection equipment ZYJ10-3
60	44	GB3452.1-92-42.5×3.55	O-ring 42.5×3.55
61	45	JB1885-77-45I	A-pigeonholding type hose 45I-
62	47	QU1-E250x40DFP	Oil filter QU1-E250x40DFP
63	48	GB/T70.1-2000-M12x90	Allen screw M12x90
64	49	GB93-87-12	Washer 12
65	50	GB/T5781-2000-M16x45-8.8	Bolt M16x45
66	51	GB93-87-16	Washer 16
67	52	SPG-1.6	Shockproof pressure gauge YN-60(0-1.6Mpa)
68	53	QB/HTQ-23	Pressure gauge connector M14x1.5-R1/4
69	7	AF-E40/0.5	Safety Valve AF-E40-0.5
70	2	JC50DB01-05.13.00	Pipe clamp Փ 10
71	10	GB1152-79-M10X1	Alemite M10x1
72	3	JC70DB-13.03	Spacer(1)
73	4	JC70DB-13.04	Left bearing seat
74	5	JC70DB-13.05	Washer set (2)
75	7	JC70DB-13.07	Spacer(1)
76	11	JC70DB-13.11	Spacer(1)
77	14	JC70DB-13.14.00	Right bearing seat
78	15	JC70DB-13.15	Bolt M36 x120
79	16	JC70DB-13.16	Bolt M 36×130
80	18	AF0000030100	Air-water coupling
81	19	AF0000010600	Water/gas instrument devices
82	20	GB32.1-88-M20x45-5.8	Bolt with hole M20x45
83	21	GB93-87-20	Washer 20
84	22	GB/T288-94-23148CA	Bearing 23148CA/W33/240 x 400 x 128
85	23	GB/T6170-2000-M36-5	Nut M36
86	24	GB93-87-36	Washer 36
87	25	GB/T5782-2000-M20x50-6.8	Bolt M20x50
88	26	GB9877.1-88-260x300x20	Oil seal 260x300x20
89	27	GB32.1-88-M8x20-5.8	Bolt with hole M8x20
90	28	GB93-87-8	Washer 8
91	29	Z03-67	Wire Փ1.5
92	2	JC70DB-13.10.02	Screw M30X330
93	3	GB/T6170-2000-M30-8	Nut M30
94	4	GB93-87-30	Washer 30
95	5	JC40D01-02.01.22	Pressure spring
96	6	HG4-337-66-70×95	V-type weave seal(A)70×95
97	8	JC40D01-02.01.18	Shaft sleeve
98	9	JC40D01-02.01.24	Gasket
99	15	JC50DB01-02.15.15	Washer I
100	18	JC50DB01-02.15.18	Washer II
101	21	JC50DB01-02.15.21	Washer III
102	22	JC50DB01-02.15.22	Ventilate plug R1/2
103	24	T007-001.00	Oil spill mouth
104	25	GB1152-79-M10X1	Alemite M10x1
105	26	HG4-692-67-100X 130×12	Oil seal PD100 x130x12
106	28	GB/T858-2000-85	Washer 85
107	29	GB/T5782-2000-M10x35-5.8	Bolt M10x35
108	30	GB93-87-10	Grower washer 10
109	31	GB276-64-214	Bearing 214(70x125x24)
110	32	GB/T68-2000-M6x 15-5.8	Socket screw M6x 15
111	33	HG4-692-67-50x70x12	Oil seal PD50x70x12
112	34	GB276-64-208	Bearing 208(40x80x18)
113	35	GB/T894.2-2000-40	Elastic circlip used in oil 40
114	36	HG4-692-67-40x65x12	Oil seal PD 40x65x12
115	37	GB/T893.1-2000-80	Elastic circlip used in hole 80
116	38	GB/T5781-2000-M10x25	Bolt M 10×25
117	39	GB3452.1-92-74×5.3	O-ring 74×5.3
118	40	GB/T5782-2000-M12x45	Bolt M 12×45
119	41	GB93-87-12	Grower washer 12
120	5	JC40D01-02.15.22	Pressure spring
121	6	Z03-86HG4-337-66-70×95	V type seal ring (A)70×95
122	8	JC40D01-02.01.18	Shaft sleeve
123	9	JC40D01-02.01.24	Gasket
124	10	T007-001.00	Oil spill fitting
125	11	GB1152-79-M10X1	Grease fitting M10x1
126	12	HG4-692-77-100X 130×12	Oil seal PD 100x130x12
127	13	GB/T5782-2000-M10x35-5.8	Bolt M 10×35
128	14	GB93-87-10	Spring washer 10
129	15	GB276-64-218	Bearing 218(90x160x30)
130	16	GB/T68-2000-M6x 15-5.8	Socket screw M6x 15
131	17	GB3452.1-82-74×5.2	O-ring 74×5.3
132	18	GB/T5782-2000-M20x45-4.8	Bolt M20x45
133	19	GB93-87-20	Spring washer 20
134	21	GB/T858-2000-85	Washer 85
135	2	GB/T5783-2000-M16x40-8.8	Bolt M 16×40
136	3	GB3452.1-88-38.7×3.55	O-ring 38.7×3.55
137	5	GB/T5783-2000-M20x75-8.8	Bolt M 20×75
138	10	SKF-22336CC/W33-C3	Bearing 22336CC/W33-C3(180×380 x126)
139	19	JB/ZQ4224-86-180×5.7	O-ring 180×5.7
140	20	AF7003030400-5-11	Disc
141	21	AF7003030400-5-12	Disc
142	24	AF7003030400-5-15	Disc
143	24	AF7003030400-5-16	Disc
144	3	GB/T5783-2000-M24x60-8.8	Bolt M 24×60
145	7	SKF-24048CC/W33	Bearing 24048CC/W33(240x360x118)
146	13	GB/T5783-2000-M20x60-8.8	Bolt M 20×60
147	14	AF7003030400-6-10	Oil disc
148	15	AF7003030400-6-11	Oil disc
149	16	GB879-86-5×30	Pin Փ 5×30
150	20	JB/ZQ4224-86-230×5.7	O-ring 230×5.7
151	5	SKF-NU2228CM	Bearing NU2228cM(140x250x68)
152	8	SKF-QJ226N2MA	Bearing QJ226N2MA(130x230x40)
153	10	GB858-88-125	Washer 125
154	13	SKF-NU2226ECM	Bearing NU2226ECM( 130x230x64)
155	16	AF7003030400-8-10	Oil disc
156	17	AF7003030400-8-11	Oil disc
157	18	GB879-86-6×30	Pin 6×30
158	1	SKF-22244CC/W33	Bearing 22244CC/W33(220x400x 108)
159	6	SKF-22344CC/W33	Bearing 22344CC/W33(220x460x 145)
160	12	GB/T5783-2000-M20x45-8.8	Bolt M 20×45
161	3	GB/T5783-2000-M30X145-8.8	Bolt M 30×145
162	4	GB/T6170-2000-M30-8	Nut M30
163	5	GB/T5783-2000-M20x45-8.8	Bolt M20x45
164	6	GB/T901-2000-M36x200-8.8	Bolt M 36×200
165	7	GB/T6170-2000-M36-8	Nut M36
166	8	GB/T5783-2000-M24x50-8.8	Bolt M 24×50
167	9	GB/T5783-2000-M12x35-8.8	Bolt M 12×35
168	11	CTAC-G3	C type air cleaner G3′
169	12	GB/T5783-2000-M6x8-8.8	Bolt M 6×8
170	14	GB117-88-30X130	Pin 30×130
171	21	GB/T5783-2000-M10x20-8.8	Bolt M 10×20
172	3	GB/T5783-2000-M30X145-8.8	Bolt M 30×145
173	4	GB/T41-2000-M30-8	Nut M30
174	5	GB/T5783-2000-M20x45-8	Bolt M20x45
175	6	GB/T901-2000-M36x200-8.8	Screw M 36×200
176	7	GB/T6170-2000-M36-8	Nut M36
177	8	GB/T5783-2000-M24x50-8.8	Bolt M 24×50
178	9	GB/T5783-2000-M12x35-8.8	Bolt M 12×35
179	11	CTAC-G3	C-type air cleaner G3′
180	12	GB/T5783-2000-M6x8	Bolt M6x8
181	14	GB117-88-30X130	Pin Փ 30×130
182	20	GB/T5783-2000-M10x20-8.8	Bolt M 10×20
183	5	JC50DB01-04.05.00	Pipe clamp assembly
184	6	JB1885-77-16I	Rubber tube 16I
185	9	GB1235-76-20×2.4	O-ring 20×2.4
186	11	GB93-87-30	Grower washer 30
187	2	SC-00	Main Caliper Assembly
188	3	EC-00	Emergency Caliper Assembly
189	3	F-0306	Cap Screw
190	4	F-0307	Washer
191	1	SG-00	Cylinder Assembly, Service
192	2	SC-03	Spring, Caliper Return
193	3	SC-18	Spacer
194	4	SC-19	Pin, Service Support
195	5	SC-12	Pin, Finger Loop Cotter
196	6	SC-02	Pin, Cylinder
197	7	T-02	Cap Screw
198	8	SC-07	Plate, Pivot Pin Retainer
199	9	SC-08	Pin, Caliper Pivot
200	10	SC-10	Pin, Brake Pad
201	11	T-03	Washer
202	12	T-09	Long Bolt of Brake Block
203	13	SC-16	Bolt of Brake Block
204	14	SC-14	Plate Assembly, Brake Pad
205	15	SC-11	Bearing
206	16	SC-20	Pad Assembly
207	17	SC-06	Bearing
208	18	AF80	AF Rod Wiper
209	19	SC-17	Support Muff
210	21	T-04	Grease
211	22	A530	A5 Rod Wiper
212	2	T-04	Grease
213	3	A530	A5 Rod Wiper
214	4	SC-01	Bearing
215	5	T-08	Bolt of Cover Plate
216	6	T-07	Cover Plate
217	8	SC-05	Bearing
218	9	SC-09	Bearing
219	10	SC-13	Bearing
220	1	EG-00	Emergency Cylinder
221	3	SC-06	Bearing
222	4	EC-01	Pin, Cylinder
223	6	SC-08	Pin, Caliper Pivot
224	7	SC-12	Pin, Finger Loop Cotter
225	8	SC-10	Pin, Brake Pad
226	9	T-09	Long Bolt of Brake Block
227	10	SC-14	Plate Assembly, Brake Pad
228	11	T-03	Washer
229	12	SC-16	Bolt of Brake Block
230	13	SC-11	Bearing
231	14	SC-20	Pad Assembly
232	15	T-02	Cap Screw
233	16	SC-07	Plate, Pivot Pin Retainer
234	17	SC-17	Support Muff
235	19	AF80	AF Rod Wiper
236	20	T-04	Grease
237	21	A530	A5 Rod Wiper
238	2	T-04	Grease
239	3	A530	A5 Rod Wiper
240	4	SC-01	Bearing
241	5	T-08	Bolt of Cover Plate
242	6	T-07	Cover Plate
243	8	SC-05	Bearing
244	9	SC-09	Bearing
245	10	SC-13	Bearing

On-Site Drawworks Fault Repair Cases

Case 1: JC-70DB Gearbox Bearing Failure

A ZDPE JC-70DB drawworks experienced abnormal noise and reduced hoisting power due to a worn SKF 22336CC/W33-C3 gearbox bearing. Replacing the defective bearing with the OEM-spec component eliminated friction and noise, restoring full drawworks lifting capacity and resuming drilling operations.

Case 2: Drawworks Coolant Pipeline Leak

The JC-70DB cooling water system developed severe leaks at the rubber hose connections, traced to deteriorated hose adapters and O-rings. Installing OEM-spec QB/HTQ-05 adapters and 90X5.3 O-rings sealed the pipeline, eliminating coolant loss and preventing overheating of drawworks components.

Case 3: Brake Caliper Pad Wear

The main drawworks brake failed to hold load due to worn SC-20 brake pad assemblies. Swapping in new OEM brake pads and caliper bearings restored full braking torque, ensuring safe hoisting and lowering operations without slippage.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts compatible only with the ZDPE JC-70DB drawworks?	Yes, all components are precision-designed exclusively for the ZDPE JC-70DB drawworks and its matching DS/ODS gearboxes. Compatibility with other drawworks models is not guaranteed due to unique dimensional and design differences.
Do the bearings and fasteners meet industrial drilling standards?	Absolutely. Load bearings feature premium SKF heavy-duty specifications, and all fasteners meet high-strength GB/T standards, complying with API 7K requirements for drilling hoisting equipment.
Can I purchase individual parts for minor repairs, or only full overhaul kits?	Parts are available for individual purchase (bearings, seals, bolts, caliper components) and as complete gearbox, brake, and lubrication system overhaul kits for full drawworks refurbishment.

Procurement Guidance & Call to Action

For rig maintenance teams, drilling operations supervisors, and procurement specialists managing ZDPE JC-70DB drawworks, this parts list is the definitive resource to minimize downtime, uphold API safety standards, and source guaranteed OEM-compatible components. Avoid the risks of substandard generic parts, catastrophic drawworks failures, and costly drilling delays — this catalog serves as both a standardized procurement blueprint and technical repair reference for all critical JC-70DB drawworks systems.

Secure these premium ZDPE JC-70DB drawworks parts to execute fast, durable on-site repairs, maintain consistent hoisting performance, and extend the service life of your drilling drawworks. Each component is built to withstand the rigors of heavy-duty 24/7 drilling operations, making this the trusted choice for keeping your JC-70DB drawworks operating safely and efficiently.