BOMCO ZP375Z Rotary Table Parts

1.  Product Introduction

This ZP375Z rotary table parts inventory covers all critical subassemblies: general inspection spares, input shaft assembly, and rotary board device components. All parts are direct-fit replacements engineered to match original OEM part numbers (AG series, GB standard fasteners) and assembly drawings, requiring no on-site machining or modification for installation.

2. Key Functional Specifications

• Brake System Parts: Left/right brake shoes, brake pins, and control levers designed for reliable braking performance under max 32362N·m torque loads, preventing slip during drilling and pipe handling.
• Input Shaft Components: Precision bearings (32630, 3630), oil seals, and shaft sleeves that maintain stable power transmission, reducing friction and extending shaft service life.
• Rotary Board Device Parts: Custom-thickness shim sets (0.05mm, 0.1mm, 0.5mm), cylindrical pins, and O-rings for precise alignment and leak-free operation of the rotating assembly.
• Fastening & Sealing Hardware: GB-standard bolts, nuts, spring washers, and oil seals rated for high-vibration, high-torque conditions, eliminating loose connections and fluid leaks.

3. Structural & Quality Advantages

• API 7K Compliance: All load-bearing and rotating components meet API Spec 7K drilling equipment standards, with material certifications and pressure-testing validation.
• Precision Machining: Bearings, shaft sleeves, and cylindrical pins undergo CNC machining and CMM inspection, ensuring perfect alignment with OEM assembly specs.
• Wear Resistance: Brake shoes feature friction-resistant linings; seals use oil-resistant rubber with less than 10% compression set after 1000 hours of use; fasteners feature corrosion-resistant plating.
• Interchangeability: Full cross-referencing with original AG-series part numbers and GB standard hardware for seamless replacement of worn components.

4. Applicable Operating Conditions

These ZP375Z rotary table parts are validated for use in the harshest drilling environments, performing reliably under these conditions:

• Drilling Scenarios: Onshore land drilling rigs, offshore well servicing platforms, and workover rigs
• Load Parameters: Max static load 5850kN, peak torque 32362N·m, operating speed up to 300 RPM
• Environmental Limits: Ambient temperatures -30℃ to 55℃, high-humidity offshore air, dusty onshore sites, and mud-contaminated conditions
• Service Modes: 24/7 continuous drilling duty, intermittent pipe handling, and periodic rotary table overhauls

5. Preventive Maintenance & Service Recommendations

Follow these field-proven maintenance steps to extend part life and avoid unexpected ZP375Z rotary table failures:

1. Daily Checks: Inspect brake shoe wear, check for oil leaks at input shaft seals, and verify fastener tightness to prevent loosening from vibration.
2. Monthly Inspections: Lubricate oil cups, clean mud scrapers, and inspect O-rings and gaskets for wear or damage.
3. 500-Hour Service: Retorque all bolts to specified torque values, replace worn shim sets if alignment is off, and inspect bearing noise and play.
4. 2000-Hour Overhaul Prep: Check brake pin wear, inspect input shaft bearings for fatigue, and replace oil seals at the first sign of leakage.
5. 8000-Hour Major Overhaul: Replace all bearings, brake shoes, seals, and shim sets; realign the rotary board assembly and pressure-test the sealing system.

We supply the following spare parts:

	EQUIPMENT  NAME	Rotary Table
	MAKE	BOMCO
	MODEL	ZP375Z
	SERIAL NUMBER	11000028640
SL. NO.	PART NUMBER	DESCRIPTION	UOM
1	AG375003-03	Name plate	Ea
2	AG37500106	M27Hook bolt	Ea
3	AG37500107	Nut	Ea
4	AG37500108	Brake Pin	Ea
5	AG37500113	washer	Ea
6	AG37500114	retainer	Ea
7	AG37500120	washer	Ea
8	AG27500101	Left brake shoe	Ea
9	AG27500102	Right brake shoe	Ea
10	AG27500105	1/8 Plug	Ea
11	AG2750010600	Control level	Ea
12	AG27500109	1-1/2plug	Ea
13	AG27500111	Mud scraper	Ea
14	AG27500116	pin	Ea
15	GB1152-74	M10×1oil cup	Ea
16	GB70-85	M24×75inner hex screw	Ea
17	GB827-86	3×10 Rivet	Ea
18	GB91-86 5×35	Cotter pin	Ea
19	GB5783-86	M16×35Bolt	Ea
20	GB93-87	16Spring washer	Ea
21	AG3750011102	470×8.6O-ring	Ea
22	AG3750011106	shim	Ea
23	AG3750011107	shim	Ea
24	AG3750011109	key	Ea
25	AG3750011112	shaft sleeve	Ea
26	GB32.1-88	M16×35bolt	Ea
27	GB32.1-88	M20×45bolt	Ea
28	GB5783-86	M20×60bolt	Ea
29	GB93-87 20	spring washer	Ea
30	HG4-692	SG180×220×18 oil seal	Ea
31	GB283-64	32630bearing	Ea
32	GB286-64	3630bearing	Ea
33	AG3750010903	cylindrical pin	Ea
34	AG3750010905	o-ring	Ea
35	AG3750010906	0.5shim	Ea
36	AG3750010907	0.1shim	Ea
37	AG3750010908	0.05shim	Ea
38	2687/1049	2687/1049bearing	Ea
39	GB70-85	M24×60screw	Ea
40	GB93-87	24Spring washer 12	Ea

6. Field Failure Repair Cases (Real Drilling Site Scenarios)

Case 1: Brake Shoe Wear & Loss of Braking Power

Issue: A drilling rig’s ZP375Z rotary table experienced brake slip during pipe handling, creating a safety hazard and halting operations.

Root Cause: Excessive wear on left and right brake shoes, compounded by loose brake pins and worn washers.

Resolution: Installed OEM-matched left/right brake shoes, new brake pins, and replacement washers from this parts list, then adjusted brake clearance. Braking performance was fully restored, meeting API safety standards.

Case 2: Input Shaft Oil Seal Leakage

Issue: Lubricating oil leaked from the input shaft assembly, contaminating drilling mud and increasing bearing wear risk.

Root Cause: Degraded SG180×220×18 oil seal damaged by mud abrasion and high-temperature operation.

Resolution: Replaced the worn oil seal and corresponding O-rings, installed a new shaft sleeve, and replenished lubricating oil. Leakage was completely eliminated, protecting bearings from premature failure.

Case 3: Rotary Board Alignment & Bearing Noise

Issue: Unusual noise and slight wobble from the rotary board device, causing inconsistent drill string rotation.

Root Cause: Worn 2687/1049 bearing and misaligned shim sets leading to assembly imbalance.

Resolution: Swapped in a new precision bearing, replaced full sets of 0.05mm/0.1mm/0.5mm shims, and realigned the rotary board. Noise and wobble were eliminated, restoring smooth rotation.

7. Frequently Asked Questions (FAQ)

Question	Answer
Are these parts direct fits for BOMCO ZP375Z rotary table (SN 11000028640)?	Yes, every part is engineered to match OEM dimensions, part numbers, and API 7K specs, ensuring 100% bolt-on fit without modification or machining.
Do these components meet API 7K drilling equipment standards?	All load-bearing, rotating, and safety-critical parts comply with API Spec 7K, with material certifications and fatigue testing for reliable field performance.
Can I use these parts for full overhauls and small repairs?	Absolutely. This list covers everything from small fasteners, seals, and shims for minor fixes to bearings, brake shoes, and shaft components for complete overhauls.

8. Procurement Guidance & Call to Action

For drilling teams relying on the BOMCO ZP375Z rotary table, having access to high-quality, API-compliant spare parts is critical to minimizing downtime, maintaining drilling efficiency, and upholding job site safety. This parts list serves as a definitive procurement standard and technical reference, simplifying your sourcing process for emergency repairs, scheduled maintenance, and full rotary table overhauls.

Whether you need replacement brake shoes, input shaft bearings, precision shim sets, specialized GB-standard fasteners, or sealing components, every item in this collection is built for durability, precision, and reliable performance in harsh drilling conditions. Use the detailed part numbers and descriptions to submit your procurement request, and leverage the included maintenance and troubleshooting guidance to resolve on-site technical issues quickly.