Core Application & Equipment Compatibility
These parts are dedicated to the sprocket and pinion shaft transmission system of LANZHOU LS drilling rigs, covering core assemblies, bearings, seals, fasteners, and accessories. Compliant with GB standards (GB91-86, GB5783-86, etc.), they adapt to high-torque transmission and sealed lubrication needs. Designed for maintenance engineers and procurement teams, they ensure stable operation of the rig’s power transmission chain in harsh drilling environments.
1. Pinion Shaft Assembly & Core Components
This category constitutes the core of the rig’s transmission system, bearing high torque and power transfer. A site resolved pinion shaft jamming by replacing worn bearings (32622EH) and oil seals, and cleaning the magnet to remove iron filings, restoring smooth transmission and preventing secondary component wear.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Pinion Shaft Assembly | 105.11.40.00 | Alloy steel, integrated heat-treated, precision-machined | Bearing friction fatigue; gear meshing wear; iron filings contamination | Lubricate with industrial gear oil; clean magnet monthly; inspect alignment quarterly |
2 | Pinion Shaft Component | 105.11.40.12 | Alloy steel, quenched, wear-resistant | Impact load; friction wear; corrosion | Ensure tight fit with assembly; inspect for cracks monthly; replace if worn |
3 | Pinion Shaft Component | 105.11.40.13 | Alloy steel, quenched, wear-resistant | Impact load; friction wear; corrosion | Lubricate contact surface; inspect thickness; replace if deformation occurs |
4 | Bearing End Plate | 105.11.40.02 | Carbon steel, anti-corrosion coated | Bearing vibration impact; corrosion; seal failure | Tighten fixing screws; replace gaskets if leaking; touch up paint annually |
5 | Bearing (32622EH) | 32622EH | High-carbon chromium bearing steel (GCr15), precision grade | Lubricant deterioration; iron filings contamination; high-torque fatigue | Fill with lithium-based grease (NLGI 2); clean surrounding area; replace after 2500 working hours |
6 | O-Ring | 105.11.40.03 | Nitrile rubber, oil-resistant, high-temperature resistant | Aging brittle; oil erosion; compression deformation | Replace with bearing end plate; avoid over-compression; store in cool dry place |
7 | Spacer | 105.11.40.04 | Alloy steel, precision-machined | Axial force impact; friction wear; corrosion | Select thickness per assembly gap; inspect wear monthly; replace if thickness reduces by 0.5mm |
8 | Drain Plug (1") | 105.08.60.01 | Alloy steel, high-strength, zinc-plated | Thread wear; corrosion; vibration loosening | Apply anti-seize compound; torque to 150N·m; inspect after oil change |
9 | Magnet | 105.08.60.02 | Permanent magnet material, corrosion-resistant coating | Iron filings accumulation; corrosion; impact damage | Clean iron filings monthly; avoid strong impact; replace if magnetic force weakens |
10 | Pinion Shaft | 105.11.40.05 | Alloy steel, carburized, high-hardness | Gear meshing wear; bearing friction; fatigue crack | Lubricate gear teeth weekly; inspect runout monthly; replace if teeth are chipped |
11 | Bearing (53622H) | 53622H | GCr15 bearing steel, high-load capacity | Lubricant shortage; dust contamination; high-torque fatigue | Refuel per 1500 working hours; seal with O-rings; replace if noisy |
12 | Shim (105.11.40.06) | 105.11.40.06 | Stainless steel, thin-gauge, precision | Deformation; corrosion; wear | Install flatly without overlapping; select thickness per gap; store in dry place |
13 | Capsule | 105.11.41.00 | Alloy steel, anti-corrosion coated, sealed | Impact damage; corrosion; seal failure | Inspect seal tightness monthly; avoid collision; replace if leaking |
14 | Shim (105.11.40.07) | 105.11.40.07 | Stainless steel, thin-gauge, precision | Deformation; corrosion; wear | Match with pinion shaft assembly; inspect thickness; replace if deformed |
15 | Oil Seal | D7-1-67(140*170*15) | Rubber, oil-resistant, high-temperature resistant | Aging; shaft friction; oil erosion | Replace every 6 months; avoid sharp edges during installation; lubricate seal lip |
16 | Pinion End Retainer | 105.11.40.10 | Alloy steel, quenched, wear-resistant | Friction wear; impact damage; corrosion | Lubricate contact surface; inspect for cracks; replace if worn |
17 | Pinion Shaft Nut | — | Alloy steel, high-strength, 8-grade | Thread wear; vibration loosening; corrosion | Torque to specification; apply anti-seize; retighten quarterly |
18 | Pinion Shaft Housing | 105.11.40.08 | Alloy steel, integrated casting, anti-corrosion | Impact damage; corrosion; internal contamination | Inspect for cracks quarterly; clean internal cavity; apply anti-rust paint annually |
19 | Key | 105.11.40.09 | Alloy steel, quenched, precision-machined | Shear stress; friction wear; corrosion | Lubricate before installation; inspect fit tightness; replace if sheared |
20 | Sprocket Retainer | C6-3-92(125) | Alloy steel, wear-resistant, anti-corrosion coated | Sprocket friction; impact damage; corrosion | Align with sprocket; lubricate monthly; replace if deformation occurs |
21 | Flange | 105.11.19 | Carbon steel, anti-corrosion coated, precision-machined | Impact load; corrosion; seal failure | Tighten fixing fasteners; replace gaskets if leaking; inspect flatness |
22 | Lift Hook | 105K.11.21 | Alloy steel, forged, high-load capacity | Overload; fatigue crack; corrosion | Never exceed rated load; inspect for cracks weekly; apply anti-rust oil |
2. Fasteners
Fasteners secure pinion shaft assembly and related components, complying with GB5783-86 and GB93-87 standards. Proper torque application and spring washer matching prevent loosening in high-vibration, high-torque environments, ensuring transmission system integrity.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Cotter Pin (2×12) | GB91-86(2×12) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend both ends tightly; replace if rusted; avoid over-bending |
2 | Screw (M20×60) | GB5783-86(M20×60) | Alloy steel, 8.8-grade, high-strength | Vibration loosening; thread wear; corrosion | Torque to 180N·m; use spring washers; apply anti-rust oil |
3 | Screw (M16×50) | GB5783-86(M16×50) | Alloy steel, 8.8-grade, high-strength | Vibration loosening; thread wear; corrosion | Torque to 120N·m; apply anti-seize compound; retighten monthly |
4 | Spring Washer (20) | GB93-87 | Spring steel, zinc-plated | Compression fatigue; rust; deformation | Match with M20 screws; discard flattened washers; store in dry place |
5 | Spring Washer (16) | GB93-87 | Spring steel, zinc-plated | Compression fatigue; rust; deformation | Match with M16 screws; inspect elasticity; replace if flattened |
6 | Screw with Head Holes | GB32.1-88 | Alloy steel, 8-grade, high-strength | Thread wear; corrosion; vibration loosening | Torque to specification; use cotter pins for locking; apply anti-rust oil |
7 | General Screw | — | Alloy steel, 8-grade | Thread wear; corrosion; vibration loosening | Match with corresponding components; torque properly; replace if worn |
FAQs
Question | Answer |
How to maintain the pinion shaft assembly to extend service life? | Replace gear oil every 3000 working hours; clean the magnet monthly to remove iron filings; inspect bearing temperature during operation (normal ≤80℃); align gear meshing quarterly. Follow GB standards for wear limits to avoid secondary damage. |
What are the key points for installing oil seals and O-rings? | Lubricate the seal lip with grease before installation; avoid sharp edges scratching the seal; ensure proper compression (neither over-compression nor under-compression). Replace seals and O-rings in pairs with related components to ensure sealing effect. |
Procurement Guidance
Genuine sprocket and pinion shaft series parts are vital for maintaining the transmission efficiency and operational safety of LANZHOU LS drilling rigs. Whether for bearing replacement, seal upgrade, or fastener maintenance, we provide authentic parts that comply with original specifications and GB standards. Contact our team for tailored recommendations and professional technical support to minimize downtime and ensure stable, efficient drilling operations.
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