1. Product Overview
This comprehensive Friction Plate Disc Clutch Parts List covers a full range of precision-engineered components for industrial and drilling disc clutches, including core friction discs, pressure plates, center plates, air tubes, hubs, and auxiliary parts. Key part numbers include W08-07-900 (8″ LI Friction Disc), W14-07-900 (14″ HI-CO Friction Disc), W18-07-900 (18″ LI/PG Friction Disc), W24-11-102 (24″ PG PO Clutch Center Plate), W30-07-902 (30″ HI-CO Friction Disc), and W27-07-900 (27″ HI-CO Friction Disc). Each part is specifically designed to fit exact OEM clutch models and drilling/industrial equipment, including Power Grip PO/PG clutches, LI (Low Inertia) clutches, WCB (Water Cooled Brake) clutches, 214/218/318/324 series clutches, and 224/230/330 power grip clutches. These components are compatible with drilling rigs (NOV, Cameron, Baker Hughes), industrial machinery, drawworks, and winches—critical for transmitting torque and ensuring reliable clutch operation.
2. Key Product Features
Every part in the list is 100% compatible with OEM clutch models (Power Grip PO/PG, LI, WCB, 214/218/318/324 series) and fully certified to API 7K and SAE J1940 standards. Precision machining ensures a tight fit with clutch assemblies, with dimensional tolerance of ±0.05 mm—eliminating the risk of part misalignment, clutch slip, or premature failure. For example, the W14-07-900 14″ HI-CO friction disc is engineered to fit 14″ PG/PTO clutches with a 88-tooth design, ensuring seamless torque transmission. The W30-07-902 30″ friction disc (123T) is specifically matched to 30″ PO clutches, with a maximum torque capacity of 15,000 N·m. All parts are cross-referenced with OEM specifications, ensuring exact compatibility without retrofitting or custom modifications.
3. Structural Characteristics
All clutch parts are designed for easy installation and maintenance, minimizing downtime during repairs or overhauls. Key structural features for serviceability: standard bolt patterns and mounting dimensions that match OEM clutches (no special tools required); clear part marking (part number, size, clutch type) on each component, ensuring correct part selection; and removable friction material (on some discs) for easy replacement, reducing repair time by up to 50%. Air tubes and holding plates feature quick-connect designs, allowing for fast installation and removal without disassembling the entire clutch.
4. Maintenance and Care Recommendations
Routine inspection is critical to prevent clutch part failure and ensure safe, reliable operation—follow these simple steps:
– Pre-Use Check: Inspect friction discs for wear (replace if friction material thickness is less than 2 mm), cracks, or glazing. Check pressure plates for warping (use a straightedge to verify flatness—maximum warpage of 0.1 mm is allowed). Inspect air tubes for leaks (use soapy water to detect bubbles) and damage. Ensure all bolts and fasteners are tight to the OEM torque specs (15–25 N·m for small parts, 30–45 N·m for pressure plates).
– Scheduled Maintenance (Every 500 Operating Hours): Remove the clutch assembly and inspect all parts. Clean friction discs with a non-abrasive solvent to remove oil, dirt, and debris. Check center plates for wear or warping. Inspect air tube seals for wear and replace if damaged. Test clutch engagement/disengagement to ensure smooth operation.
We supply the following spare parts:
| W00-00-901 NAME PLATE, WPT | W14-01-007 HUB, 114 CLUTCH BLANK BORE | W18-02-103 FRONT COVER PLATE F/18″ PO | W24-11-102 CENTER PLATE F/24″ PG PO CLUT |
| W00-20-903 AIR TUBE,2 SPUD, F/CARDWELL | W14-01-013 HUB, 114 LI SPRING SET BRK, BB | W18-03-000 PRESSURE PLATE, 18″ LI | W24-11-103 PRESSURE PLATE F/24″ PO CLUT |
| W08-07-900 FRICTION DISC 8″ LI | W14-02-903 PLATE, AIRTUBE HOLDING, 14″ | W18-03-101 PRESSURE PLATE, 18″ PG/PTO C | W24-OM-304 324 WCB, W/COPPER WP, BB, 2 S |
| W08-20-900 8″ ONE SPUD CONTINUOUS | W14-03-000 253-3-3, 4-253-003-003-7 MOR | W18-03-103 INSULATOR PLATE F/PO 18″ | W25-02-000 AIR TUBE HOLDING PLATE, 24H |
| W08-20-900 AIR TUBE, 8″, ONE SPUD, CONT | W14-03-000 PRESSURE PLATE , 14″ LI C/B | W18-07-305 FRICTION DISC,F/18″ WCB HI-CO | W25-02-005 AIR TUBE HOLDING PLATE 24″, CR |
| W08-20-901 AIR TUBE, 8″, TWO SPUD, CONT | W14-03-100 PRESSURE PLATE, 14″ PG CLUTCH | W18-07-900 18″ LI/PG FRICTION DISC | W25-02-100 ATHP, 24H CLUTCH |
| W08-OD-200 208 ATD PG CLUTCH W/D.RING | W14-03-101 PRESSURE PLATE, 14 | W18-07-900 FRICTION DISC, HI-CO, 18″ LI/P | W25-02-103 AIR TUBE HOLDING PLATE, 24SHD |
| W08-OD-200 208 ATD PG CLUTCH W/D.RING | W14-03-104 INSULATOR PLATE, 14″ PG CLUTCH | W18-07-903 FRICTION DISC HI-CO 18″ | W25-03-000 PRESSURE PLATE F/24″ LI |
| W30-03-101 INSULATOR PLATE, 30″ PO CLUTCH | W14-04-006 RING & BACK PLATE, 114 LI | W18-07-904 FRICTION DISC HI-CO 18″ 2SG | W25-03-100 24H POWER GRIP PRESSURE |
| W30-07-902 30 DRIVE PLATE | W14-04-404 RING, 114 STEEL WATER COOLED | W18-07-907 18 FRICTION DISC-(KEVLAR) | W25-03-100 PRESSURE PLATE, 24H PO CLUTCH |
| W30-07-902 30″ FRICTION DISC, HI-CO, 123T | W14-05-000 PLATE, SPRING, AT 14″ LI | W18-07-907 FRICTION DISC F/18″ PG/PTO | W25-03-300 PRESSURE PLATE 24H KKB |
| W30-07-906 FRICTION DISC, HI-CO,30″ | W14-06-000 PLATE, RELEASE SPRING 14″ LI | W18-07-910 FRICTION DISC HI-CO 18″ 1SG | W25-05-003 AIR TUBE SPRING PLATE 24″, CR |
| W30-09-100 30 SHIM | W14-06-000 SPG RELEASE PLATE, 14 | W18-08-305 DRIVE PLATE ASSY F/18″ WCB | W25-06-002 REL. SPRING PLATE, 24/24H MC |
| W30-11-001 PLATE, CENTER, SLOTTED 30″ LOW | W14-07-900 14 FRICTION DISC,88 TTH | W18-09-100 SHIM, 18″ POWER GRIP CLUTCH | W25-07-100 24″ FRICTION DISC F/24H |
| W30-11-002 CENTER PLATE, VENT F/30″ LI | W14-07-900 FRICTION DISC, HI-CO,14″, 88 | W18-09-300 CLAMP TUBE F/218WCB BRAKE | W25-11-300 COPPER WEAR PLATE 24H |
| W30-11-100 PLATE, CENTER, 30″ | W14-07-901 FRICTION DISC 14″, PG/PTO CLU | W18-0C-208 CLUTCH | W25-11-300 COPPER WEAR PLATE 24H KK |
| W30-11-102 PLATE, CENTER, 30″ POWER GRIP | W14-07-901 FRICTION DISC, HICO, 14″ | W18-11-001 PLATE,CENTER,SLOTTED,18″ LI | W25-20-900 AIR TUBE F/224PG |
| W30-11-103 PRESSURE PLATE F/30″ PO CLUTC | W14-07-907 FRICTION DISC, 14 KEVLAR | W18-11-101 18 CENTER/FLOATING PLATE | W25-OC-114 124H POWER GRIP CLUTCH |
| W30-20-100 DIAPHRAGM, 30″ PO CLUTCH | W14-07-907 FRICTION DISC, HD, 14″ PTO | W18-11-101 CENTER PLATE F/18″ PG CLUTCH | W25-OC-301 324 CLUTCH |
| W30-20-900 AIRTUBE, 30″, FOUR SPUD, | W14-07-915 FRICTION DISC, 14″, 1 SG, 6GR | W18-11-103 FLOATING PLATE 18″ PG/PTO ROLL | W25-OC-304 324SHD PG CLUTCH W/DR |
| W30-20-900 AIRTUBE, 30″, FOUR SPUD, CONT. | W14-08-402 DRIVE PLATE ASSY | W18-40-115 SPIDER | W25-OE-212 224H LI SPRING SET BRAKE, 90PS |
| W30-33-101 SPRING WAVE 30″ | W14-09-001 SEGMENT SHIM F/14″ LI | W18-CG-314 318 POWER GRIP PTO, TYPE 1 | W27-02-003 PLATE, AIRTUBE HOLDING, 27″ |
| W30-34-101 PLATE SEPERATOR W/PIN, PO330 | W14-0C-216A 214 CLUTCH | W18-OC-208 CLUTCH | W27-03-002 PRESSURE PLATE, ALUMINUM, 27″ |
| W30-40-102 DRIVING RING F/PO 330 CLUTCH | W14-11-000 CENTER PLATE, VENT, 14″ LI | W18-OC-301 318 CLUTCH | W27-03-100 PRESSURE PLATE, 27″ PG CLUTCH |
| W30-40-115 PO230 DRIVE RING | W14-11-002 PLATE, CENTER, SLOTTED, 14″ | W18-OC-303 318 PG CLUTCH W/DR, 3 SPUD | W27-07-900 27 FRICTION DISC |
| W30-50-100 CLAMPING RING, OK, POWER GRIP | W14-11-003 14 CENTER PLATE, LI | W18-OC-311 318 PG CLUTCH, W/DRIVE RING | W27-07-900 27″ FRICTION DISC, HI-CO, LI/P |
| W30-50-101 INNER CLAMP RING F/30″ PO | W14-11-006 CENTER PLATE, VENTILATED 14″ | W18-OH-301 318 LOW INERTIA HI-TOR CLUTCH | W27-07-907 FRICTION DISC, HI-CO, 27″ |
| W30-OC-200 230 PWR GRIP CLUTCH W/DR | W14-11-100 14 CENTER PLATE,PG, WPT | W19-OC-202 218H POWER GRIP, W/DR, 3 SPUD | W27-09-100 SHIM SET, 2 SEGMENTS, 27″ PG |
| W30-PO-200 230 PO CLUTCH, LESS DR, W/QRV | W14-11-103 PRESSURE PLATE, 14″ | W19-OC-300 318H PG CLUTCH, W/DR, DMBL BP | W27-11-000 PLATE, CENTER, SLOTTED, 27″ |
| W30-PO-201 230 POWER GRIP PO CLUTCH | W14-11-103 PRESSURE PLATE, 14″ PO CLUTCH | W21-01-103 21″ BACK PLATE | W27-20-000 AIRTUBE, 27″, HIGH-TORQUE |
| W30-PO-300 330 PO CLUTCH, LESS DR, W/QRV | W14-11-104 CENTER PLATE, 14″ PO CLUTCH | W21-02-004 AIR TUBE HOLDING PLATE | W27-20-901 27/30 3-SPUD REG. AIRTUBE |
| W30-PO-301 330 PO CLUTCH, W/DR, W/QRV | W14-20-000 AIRTUBE, 14″, HIGH-TORQUE | w21-03-000 PRESSURE PLATE, 21″ LI CLUTCH | W27-20-901 AIR TUBE, 27″ THREE SPUD, CONT |
| W31-02-100 AIRTUBE HOLDING PLATE,4-SPUD | W14-20-100 DIAPHRAGM,14″ POWER GRIP | W21-03-001 21″, PRESSURE PLATE, LI-HI T | W27-20-902 AIRTUBE, 27″, ONE SPUD, F/224 |
| W31-02-101 ATHP, 30H CL,4 SPUD,PLK,ALUM | W14-20-900 AIR TUBE 14″, PG CLUTCH, 1 SPU | W21-03-100 21 PRESSURE PLATE | W27-20-902 AIRTUBE,27″ ONE SPUD, |
| W31-02-101 PLATE, AIRTUBE HOLDING, 30H | W14-20-901 AIRTUBE, 14 TWO SPUD | W21-03-100 PRESSURE PLATE, 21″ |
5. On-Site Fault Repair Cases (Friction Plate Disc Clutch Parts)
Case 1: Friction Disc Wear in 14″ PG Clutch (W14-07-900)
Symptom: An onshore drilling rig in the Permian Basin experienced clutch slip in a 14″ PG PTO clutch, causing reduced torque transmission and 6 hours of NPT. Inspection revealed the W14-07-900 14″ HI-CO friction disc had worn down to 1.5 mm (below the 2 mm minimum), with glazing on the friction surface from overheating.
Inspection and Repair: The maintenance team replaced the worn W14-07-900 friction disc with a new one. They cleaned the pressure plate and center plate, inspected for warpage (within 0.08 mm), and reinstalled the clutch. After testing, clutch engagement was smooth, torque transmission was restored, and no further slip was detected. The rig resumed normal operations within 2 hours.
Precaution: Inspect friction disc thickness every 500 operating hours and replace when below 2 mm to avoid overheating and clutch slip.
Case 2: Air Tube Leak in 30″ PO Clutch (W30-20-900)
Symptom: An offshore drilling rig in the Gulf of Mexico had an air tube leak in a 30″ PO clutch (air tube W30-20-900), causing inconsistent clutch engagement and failure to hold torque. The leak was caused by corrosion on the air tube spud, a result of saltwater exposure.
Inspection and Repair: The team replaced the corroded W30-20-900 four-spud air tube with a new one. They cleaned the air tube holding plate (W31-02-101), applied fresh thread sealant, and tested the clutch at 120 psi—no leaks were detected. The clutch resumed consistent engagement, and the rig completed the drilling operation without further issues.
Precaution: Inspect air tubes for corrosion every 300 operating hours in offshore environments and replace if damage is detected.
Case 3: Incompatible Pressure Plate in 18″ LI Clutch
Symptom: A maintenance team installed an incorrect pressure plate (W18-03-100 PG) in an 18″ LI clutch, instead of the correct W18-03-000 LI pressure plate. The incompatible plate caused excessive rotational inertia, leading to slow clutch engagement and gear clashing, resulting in 4 hours of NPT.
Inspection and Repair: The team referenced the parts list and installed the correct W18-03-000 LI pressure plate. They inspected the friction disc (W18-07-900) for damage (none detected), adjusted the clutch clearance, and tested the assembly. Clutch engagement speed was restored, and gear clashing stopped immediately. The equipment returned to normal operation.
Precaution: Always verify the clutch type (LI, PG, PO) and part number before selecting a pressure plate—refer to the parts list to ensure compatibility.
6. Frequently Asked Questions (FAQ)
| Question | Answer |
| How do I select the correct friction plate disc clutch part for my clutch model (e.g., LI, PG, PO)? | Select parts based on three key factors: 1) Clutch size (8″–30″—match the part size to your clutch, e.g., 14″ parts for 14″ clutches); 2) Clutch type (LI, PG, PO, WCB—select parts marked for your clutch type, e.g., W18-03-000 for 18″ LI clutches); 3) Part number (cross-reference with this list to ensure exact OEM compatibility, e.g., W08-07-900 for 8″ LI friction discs). Always check your clutch’s OEM manual for the specified part number. |
| What is the difference between HI-CO and KEVLAR friction discs, and which one should I use? | HI-CO (high coefficient) friction discs (e.g., W14-07-900, W18-07-900) have a coefficient of friction of 0.35–0.45, ideal for standard load applications (onshore drilling, industrial machinery) where strong grip is needed. KEVLAR friction discs (e.g., W14-07-907, W18-07-907) have a higher heat resistance (up to 400°C) and longer service life, making them perfect for high-temperature, heavy-load applications (offshore drilling, HTHP wells, continuous operation). |
| How often should I replace clutch parts, and what factors affect their service life? | Service life varies by part and application: Friction discs last 1,500–2,500 operating hours (HI-CO) or 2,500–3,500 hours (KEVLAR); pressure plates last 5,000–7,500 hours; air tubes last 3,000–5,000 hours (onshore) or 2,000–3,000 hours (offshore). Key factors affecting life: operating temperature (higher temps reduce life), load (heavy loads wear parts faster), maintenance frequency (regular inspection extends life by 30%), and environment (saltwater/corrosion shortens life). |
7. Procurement Guide and Call to Action
This Friction Plate Disc Clutch Parts List is the definitive resource for sourcing API 7K and SAE J1940 certified, OEM-compatible clutch components for industrial and drilling applications. With a complete range of parts for all clutch sizes (8″–30″) and types (LI, PG, PO, WCB), including friction discs, pressure plates, center plates, air tubes, and auxiliary parts, it eliminates the risk of incompatible parts, reduces unplanned downtime, and ensures compliance with critical safety standards. Every part is precision-manufactured to OEM specifications, with traceable quality control and a certificate of conformity (COC) verifying API 7K compliance, material specifications, and dimensional accuracy—delivering the reliability your clutch systems depend on. This list also serves as a technical reference for maintenance teams, with clear repair guidelines and fault-solving recommendations to address common clutch part issues in the field.
