Core Application & Equipment Compatibility
These parts are dedicated to LANZHOU LS drilling rigs, covering key components for sheave shaft systems, lock pawl mechanisms, transmission assemblies, bearings, and seals. Compliant with GB standards (GB/T32.1-1988, GB91-86, etc.), they adapt to high-load transmission and dust-proof sealing needs. Designed for maintenance engineers and procurement teams, they ensure rig transmission accuracy and operational durability in harsh drilling environments.
1. Sheave Shaft System Parts
This set constitutes the core of the rig’s hoisting transmission system, supporting sheave rotation and load bearing. A site resolved sheave jamming by replacing worn bearings (260X360X134) and dust rings, restoring smooth transmission and preventing dust-induced bearing damage.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Shaft | 101.52.40.02 | Alloy steel, heat-treated, precision-machined | Bearing friction wear; bending deformation; fatigue crack | Lubricate shaft surface with lithium-based grease; inspect straightness quarterly; replace if cracked |
2 | Spacer | 101.51.40.03 | Alloy steel, quenched, wear-resistant | Axial force impact; friction wear; corrosion | Ensure tight fit with shaft; inspect thickness monthly; replace if wear exceeds 0.5mm |
3 | Dust Ring | 101.51.20.04 | Rubber, oil-resistant, dust-proof | Aging brittle; oil erosion; mechanical scratch | Replace every 3 months; avoid sharp objects during installation; store in dry environment |
4 | Bearing (260X360X134) | 260X360X134 | High-carbon chromium bearing steel (GCr15) | Lubricant depletion; dust contamination; high-load fatigue | Fill with lithium-based grease (NLGI 2); match with dust rings; replace after 2000 working hours |
5 | Sheave (φ1270) | 101.51.20.02 | Alloy steel, quenched, anti-corrosion coated | Wire rope friction; bearing jamming; groove wear | Inspect groove wear monthly; lubricate sheave bearings weekly; replace if groove depth reduces by 10% |
6 | End Shield | 101.51.20.01 | Carbon steel, anti-corrosion coated | Impact damage; corrosion; seal failure | Check seal tightness; replace gaskets if leaking; touch up paint on rust spots annually |
7 | Oil Cup (M10×1) | GB1152-89(M10×1) | Carbon steel, zinc-plated | Thread wear; clogging; corrosion | Clean before refueling; close cap after use; apply anti-seize compound to threads |
8 | Plug (M24) | 101.51.20.07 | Alloy steel, high-strength | Vibration loosening; thread wear; corrosion | Torque to 200N·m; apply anti-rust oil; inspect monthly for looseness |
9 | Iron Wire (φ2) | GB343-82(φ2) A.R. | Stainless steel, flexible | Fatigue fracture; corrosion; overload stretching | Inspect for broken strands before use; avoid sharp bends; replace every 6 months |
2. Lock Pawl & Transmission Components
These parts form the rig’s locking and transmission mechanism, ensuring stable operation of kelly and master bushings. Compliant with GB standards, regular lubrication and replacement of worn pins prevent lock pawl jamming during drilling operations.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Lock Pawl—Left | 105.06.1 | Alloy steel, heat-treated, wear-resistant | Impact friction; fatigue crack; corrosion | Lubricate with anti-seize compound; inspect for cracks weekly; replace if locking fails |
2 | Lock Pawl—Right | 105.06.2 | Alloy steel, heat-treated, wear-resistant | Impact friction; fatigue crack; corrosion | Align with locking mechanism; lubricate monthly; replace if worn |
3 | Pin, Handle Lock Pawl | 105.06.03-1 | Alloy steel, precision-machined | Friction wear; shear stress; corrosion | Lubricate surface; inspect monthly; replace if diameter wears over 0.8mm |
4 | Grease Fitting (M10×1) | GB1152-89(M10×1) | Carbon steel, zinc-plated | Clogging; thread wear; corrosion | Clean before refueling; close cap after use; replace if clogged |
5 | Pin, Lock Pawl | 105.11.01 | Alloy steel, quenched | Friction wear; shear damage; corrosion | Lubricate with lithium-based grease; inspect for shear marks; replace if damaged |
6 | Plug (1/8") | 105.06.05 | Carbon steel, zinc-plated | Thread wear; corrosion; vibration loosening | Apply anti-seize compound; torque to 50N·m; inspect monthly |
7 | Screw, Hex Soc Hd | 105.06.10.00 | Alloy steel, high-strength | Vibration loosening; thread wear; corrosion | Torque to specification; apply anti-rust oil; retighten quarterly |
8 | Grease Fitting (M24×75) | GB70-85(M24×75) | Alloy steel, 8.8-grade | Clogging; thread wear; impact damage | Clean before refueling; avoid collision; replace if damaged |
9 | Plate, I.D | 105.11.27 | Carbon steel, anti-corrosion coated | Impact damage; corrosion; deformation | Install firmly; inspect for cracks; touch up paint on rust spots |
10 | Screw (M4×8) | GB67-85(M4×8) | Carbon steel, 4.8-grade | Vibration loosening; thread wear; corrosion | Torque to 5N·m; apply anti-rust oil; inspect monthly |
11 | Dipstick, Oil | 105.11.10.0 | Stainless steel, corrosion-resistant | Scratch; corrosion; handle damage | Clean after use; store properly; replace if bent |
12 | Plug (1 1/2") | 105.06.07 | Alloy steel, high-strength | Thread wear; corrosion; vibration loosening | Apply anti-seize compound; torque to 300N·m; inspect quarterly |
13 | Housing | 105.11.20.00 | Alloy steel, integrated casting, anti-corrosion | Impact damage; corrosion; seal failure | Inspect for cracks quarterly; check seal tightness; apply anti-rust paint annually |
14 | Tongue | 105.11.03 | Alloy steel, heat-treated, wear-resistant | Impact friction; fatigue crack; corrosion | Lubricate contact surface; inspect weekly; replace if worn |
15 | Cover | 105.11.30.00 | Carbon steel, anti-corrosion coated | Impact damage; corrosion; vibration loosening | Tighten fixing screws; replace gaskets if leaking; touch up paint |
16 | Ring Gear (Spiral Teeth) | 105.11.31 | Alloy steel, carburized, high-hardness | Tooth surface wear; impact pitting; fatigue crack | Lubricate with gear oil; inspect tooth wear monthly; replace if tooth thickness reduces by 15% |
17 | Ring Gear (Bevel Teeth) | 105.11.28 | Alloy steel, carburized, high-hardness | Tooth surface wear; impact pitting; misalignment wear | Align with pinion shaft; lubricate weekly; replace if teeth are chipped |
18 | Bearing (91682/530) | 91682/530 | GCr15 bearing steel, precision | Lubricant deterioration; dust contamination; high-load fatigue | Replace lubricant every 1500 working hours; seal with O-rings; replace if noisy |
19 | Table | 105.11.05-1 | Alloy steel, anti-corrosion coated | Impact damage; corrosion; deformation | Inspect flatness quarterly; reinforce if deformed; clean surface regularly |
20 | Lock Pawl | 105.11.50.00 | Alloy steel, heat-treated | Impact friction; fatigue crack; corrosion | Lubricate with anti-seize; inspect locking performance; replace if worn |
21 | Pin | 105.11.24 | Alloy steel, precision-machined | Friction wear; shear stress; corrosion | Lubricate surface; inspect monthly; replace if cracked |
22 | Pin, Cotter (5×36) | GB91-86(5×36) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend both ends tightly; replace if rusted; avoid over-bending |
23 | Kelly Bushing (3 1/2") | 105.11.30 | Alloy steel, wear-resistant, anti-corrosion | Kelly friction; impact damage; corrosion | Lubricate inner surface; inspect wear monthly; replace if clearance exceeds 2mm |
24 | Kelly Bushing (5") | 105.11.32 | Alloy steel, wear-resistant, anti-corrosion | Kelly friction; impact damage; corrosion | Align with kelly; lubricate weekly; replace if worn |
25 | Master Bushing | 105.11.29 | Alloy steel, integrated casting, high-hardness | Drill pipe impact; friction wear; corrosion | Inspect inner surface wear; lubricate monthly; replace if damaged |
26 | Bearing (1689/520) | 1689/520 | GCr15 bearing steel, precision | Lubricant shortage; dust contamination; high-load fatigue | Fill with lithium-based grease; seal with O-rings; replace after 2500 working hours |
27 | Shim | 105.11.10 | Stainless steel, thin-gauge | Deformation; corrosion; wear | Select thickness per assembly gap; avoid overlapping; store flat |
28 | Pinion Shaft Assembly | 105.11.40.00 | Alloy steel, integrated, heat-treated | Bearing friction; gear wear; fatigue crack | Lubricate gear and bearings weekly; inspect alignment; replace if noisy |
29 | Drain Plug (1") | — | Alloy steel, high-strength | Thread wear; corrosion; vibration loosening | Apply anti-seize compound; torque to 150N·m; inspect after oil change |
30 | Seal | 105.11.18 | Rubber, oil-resistant, high-temperature | Aging; oil erosion; mechanical damage | Replace every 6 months; avoid sharp objects during installation; store in cool place |
31 | O-Ring | 105.11.14 | Nitrile rubber, oil-resistant | Aging; compression deformation; oil erosion | Replace when installing new seals; avoid over-compression; store sealed |
32 | Screw (M20×65) | 105.11.17 | Alloy steel, 8.8-grade | Vibration loosening; thread wear; corrosion | Torque to 180N·m; apply anti-rust oil; retighten quarterly |
33 | Support, Bearing | 105.11.12 | Alloy steel, precision-machined | Bearing friction; impact damage; corrosion | Lubricate monthly; inspect for cracks; replace if worn |
36 | Screw (M16×40) | GB5783-86(M16×40) | Alloy steel, 8.8-grade | Vibration loosening; thread wear; corrosion | Torque to 120N·m; apply anti-seize; retighten monthly |
37 | Slinger | 105.11.13 | Alloy steel, anti-corrosion coated | Friction wear; corrosion; impact damage | Lubricate surface; inspect monthly; replace if deformed |
38 | O-Ring | 105.11.11 | Nitrile rubber, oil-resistant | Aging; compression deformation; oil erosion | Replace with bearing support; avoid over-compression; store in cool place |
39 | Chain Wheel | 105.11.21-1 | Alloy steel, quenched, wear-resistant | Chain friction; tooth wear; corrosion | Lubricate with chain oil; inspect tooth wear monthly; replace if teeth are chipped |
3. Fasteners
Fasteners secure rig components, complying with GB/T32.1-1988 and GB93-1987 standards. Proper torque application and regular inspection prevent loosening in high-vibration environments, ensuring structural stability of transmission and shaft systems.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Bolt (M20×45) | GB/T32.1-1988(M20×45) | Alloy steel, 8.8-grade, high-strength | Vibration loosening; thread wear; corrosion | Torque to 180N·m; use spring washers; apply anti-rust oil |
2 | Washer (20) | GB/T93-1987(20) | Spring steel, zinc-plated | Compression fatigue; rust; deformation | Replace with bolts; discard flattened washers; store in dry place |
3 | Washer, Spring (20) | GB93-87 | Spring steel, zinc-plated | Elastic fatigue; rust; deformation | Match with M20 screws; replace if elasticity decreases; inspect monthly |
4 | Washer, Spring (16) | GB93-87 | Spring steel, zinc-plated | Elastic fatigue; rust; deformation | Match with M16 screws; discard flattened washers; apply anti-rust oil |
FAQs
Question | Answer |
How to select lubricants for different components? | Bearings: Lithium-based grease (NLGI 2); gears/chain wheels: Industrial gear oil (ISO VG 150); lock pawls/screws: Anti-seize compound. Avoid mixing lubricants; refuel per component working hours to prevent wear. |
What are the wear limits for key transmission parts? | Sheave groove wear ≤1mm; gear tooth thickness reduction ≤15%; kelly bushing clearance ≤2mm. Replace parts exceeding limits per GB standards to avoid transmission failure and secondary damage. |
Procurement Guidance
Genuine parts are critical for maintaining LANZHOU LS drilling rig transmission accuracy and operational safety. Whether for bearing replacement, lock pawl maintenance, or fastener upgrade, we provide authentic parts matching original specifications and GB standards. Contact our team for tailored recommendations and professional technical support to minimize downtime and ensure efficient drilling operations.
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