Rotary Table Drive Upper Box Z06110000002AA for SJ Petro ZJ40 Drilling Rig

1

Z06110000002AA

Rotary table drive upper box

1. Structural deformation from long-term high torque and continuous vibration; 2. Oil leakage from aged seals/shims; 3. Internal component wear from contaminated lubricant.

1. Inspect for deformation, cracks, and oil leaks quarterly; 2. Replace lubricant every 500 working hours; 3. Tighten all fasteners monthly to reduce vibration impact.

Integrated assembly with Q355B low-alloy steel box body; precision-machined internal cavity; fully compatible with SJ Petro ZJ40 rotary table drive system; meets API 7K performance and safety standards.

2

Z06110100002AA

Box body

1. Impact damage from drilling debris and on-site handling; 2. Corrosion from drilling mud, salt spray, and environmental moisture; 3. Fatigue cracking at welded joints from prolonged vibration.

1. Clean external surfaces regularly to remove mud and debris; 2. Apply anti-corrosion paint annually to vulnerable areas; 3. Inspect welded joints quarterly for cracks or looseness.

Q355B low-alloy steel; one-piece welded structure for high rigidity; internal anti-rust coating; precision-machined to fit all internal components without gaps or misalignment.

3

P0100224AA

Upper cover

1. Wear at the sealing edge from repeated opening/closing; 2. Deformation from over-tightening fasteners; 3. Corrosion from oil leakage and environmental moisture.

1. Tighten fasteners evenly with a torque wrench to avoid deformation; 2. Replace the seal shim every time the cover is removed; 3. Clean the sealing surface before reinstallation.

Q235B carbon steel; surface galvanized for anti-corrosion; precision-machined sealing surface; designed to protect internal components from contaminants and retain lubricant.

4

Z06110101001AA

Oil level stick

1. Wear at the sealing end from repeated insertion/removal; 2. Corrosion from lubricant and environmental moisture; 3. Breakage from improper handling or on-site impact.

1. Insert and remove gently to avoid bending or breakage; 2. Wipe clean before each use to prevent lubricant contamination; 3. Replace immediately if bent, worn, or corroded.

45# carbon steel; surface galvanized for anti-corrosion; precision-marked oil level scales; perfectly matched with Z06110000002AA box body oil cavity for accurate lubricant level checking.

5

Z03070100003AA

Air exhausting plug

1. Thread wear from repeated opening/closing during lubricant filling; 2. Corrosion from oil and environmental moisture; 3. Blockage from lubricant impurities or drilling debris.

1. Open slowly during lubricant filling to release air gradually; 2. Clean the thread and vent hole after each use; 3. Apply anti-corrosion grease to threads monthly to prevent seizing.

H62 brass; precision-tapped metric threads; small-diameter vent hole for efficient air release; designed to prevent lubricant leakage while ensuring complete air exhaust.

6

QBJ120108

Screw plug

1. Thread wear from repeated disassembly for maintenance; 2. Seal damage from improper tightening; 3. Corrosion from drilling mud and moisture infiltration.

1. Tighten with a torque wrench (15-20 N·m) to avoid over-tightening or under-tightening; 2. Replace the seal ring every time it is disassembled; 3. Clean threads thoroughly before reinstallation.

Q235B carbon steel; zinc-plated surface for anti-corrosion; standard metric threads; compatible with the box body’s oil drain/inspection port; ensures leak-tight sealing in harsh environments.

1

P3300001AA

Bull gear

1. Tooth wear and pitting from long-term meshing with the pinion; 2. Fatigue cracking from torque fluctuations during drilling; 3. Abrasive wear from contaminated lubricant containing metal debris.

1. Use clean, high-quality gear oil (ISO VG 68) to reduce friction and wear; 2. Inspect tooth wear monthly (replace if wear exceeds 0.5mm); 3. Avoid sudden torque changes during rig operation.

20CrMnTi alloy steel; carburizing and quenching treatment (HRC 58-62) for high wear resistance; precision-machined gear teeth; designed for high-torque transmission in SJ Petro ZJ40 rigs.

2

P3300002AA

Pinion

1. Tooth deformation from excessive input torque; 2. Wear at the shaft connection end from misalignment; 3. Corrosion from lubricant impurities and environmental moisture.

1. Check gear meshing alignment quarterly to avoid uneven wear; 2. Lubricate the shaft connection end during each oil change; 3. Replace immediately if tooth deformation or cracks are found.

20CrMnTi alloy steel; heat-treated for enhanced strength and wear resistance; precision-ground gear teeth; perfectly matched with P3300001AA bull gear for seamless power transfer.

3

P2400049AA

Input shaft, upper box

1. Fatigue deformation from long-term high torque and vibration; 2. Wear at bearing and gear connection points; 3. Corrosion from internal oil leakage and moisture infiltration.

1. Inspect shaft straightness quarterly (replace if deviation exceeds 0.1mm); 2. Lubricate bearing connection points during each maintenance cycle; 3. Check for oil leaks regularly to prevent internal corrosion.

40CrNiMoA alloy steel; heat-treated for high toughness and rigidity; precision-ground surface; complies with GB/T 3077-2015 standards for transmission shafts in heavy-duty drilling equipment.

4

P2400314AA

Output shaft, upper box

1. Wear at the gear and bearing connection surfaces; 2. Bending from improper installation or on-site impact; 3. Fatigue fracture from continuous high-load operation.

1. Ensure precise alignment during installation to avoid uneven stress; 2. Inspect for wear, cracks, and straightness monthly; 3. Avoid overloading the output end with excessive torque.

40Cr alloy steel; heat-treated for strength and durability; precision-machined to fit gears, bearings, and the output shaft sleeve; compatible with SJ Petro ZJ40 rig’s rotary table system.

5

P1100690AA

Output shaft sleeve

1. Abrasive wear from contact with the output shaft and bearings; 2. Deformation from excessive pressure during installation; 3. Corrosion from lubricant contamination and moisture.

1. Install with a press tool to avoid uneven pressure and deformation; 2. Clean the inner and outer surfaces before installation; 3. Inspect for wear and dimensional deviation during each oil change.

45# carbon steel; heat-treated for wear resistance; precision-machined inner and outer surfaces; designed to protect the output shaft and ensure smooth rotation with bearings.

6

P5400106AA

Key

1. Shear damage from excessive torque transfer between shaft and gear; 2. Wear at contact surfaces from repeated assembly/disassembly; 3. Deformation from improper installation (too tight/loose).

1. Ensure proper fit during installation (no loose or forced fitting); 2. Avoid sudden torque changes that exceed the key’s load capacity; 3. Inspect for wear and deformation monthly.

45# carbon steel; precision-machined to GB/T 1096-2003 standards; heat-treated for strength; designed to transmit torque between the input shaft and pinion/bull gear.

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P5400113AA

Key

1. Wear from long-term contact with shaft and gear keyways; 2. Shear failure from torque overload; 3. Corrosion from lubricant and environmental moisture.

1. Apply a thin layer of anti-corrosion grease during installation; 2. Replace if wear exceeds 0.2mm or if cracks are detected; 3. Handle carefully during disassembly to avoid bending.

45# carbon steel; heat-treated for enhanced shear strength; precision-machined to fit shaft and gear keyways; compatible with internal transmission components of the upper box.

1

P0200347AA

Bearing seat

1. Wear at the bearing contact surface from long-term rotation; 2. Deformation from improper installation pressure; 3. Corrosion from lubricant impurities and moisture.

1. Use a press tool for bearing installation to avoid uneven pressure on the seat; 2. Clean the contact surface thoroughly before installing the bearing; 3. Inspect for wear and deformation quarterly.

45# carbon steel; precision-machined bearing contact surface; surface anti-rust treatment; designed to fix and protect bearings, ensuring precise alignment and stable operation.

2

P0200061AA

Press plate, bearing

1. Wear at the bearing contact surface; 2. Fatigue deformation from continuous vibration; 3. Corrosion from oil leakage and environmental contaminants.

1. Tighten fasteners evenly to ensure uniform pressure on the bearing; 2. Inspect for flatness during each maintenance cycle; 3. Clean and apply anti-corrosion grease regularly.

45# carbon steel; heat-treated for rigidity and wear resistance; precision-machined to ensure flatness; used to compress and fix bearings in place, preventing displacement.

3

P0100175AA

Press plate

1. Wear from long-term contact with internal components; 2. Deformation from over-tightening fasteners; 3. Corrosion from oil and moisture in the drive box.

1. Use a torque wrench to avoid over-tightening; 2. Inspect for deformation and wear during each oil change; 3. Replace if the surface is warped or corroded.

Q235B carbon steel; surface galvanized for anti-corrosion; 4mm thickness for stability; designed to secure internal components and prevent vibration-induced loosening.

4

P0100222AA

Gland, output shaft end

1. Wear from contact with the output shaft and oil seal; 2. Deformation from uneven torque or over-tightening; 3. Corrosion from drilling mud and moisture.

1. Ensure precise alignment with the output shaft during installation; 2. Tighten fasteners evenly to avoid deformation; 3. Clean the sealing surface regularly to prevent debris buildup.

Q235B carbon steel; zinc-plated surface; precision-machined sealing surface; designed to protect the output shaft end bearing and oil seal from contaminants.

5

P0100223AA

Gland, bearing, output end

1. Wear from bearing rotation; 2. Seal damage from improper installation; 3. Corrosion from oil leakage and environmental moisture.

1. Install evenly to avoid uneven pressure on the bearing and seal; 2. Replace the oil seal when disassembling the gland; 3. Clean and apply anti-corrosion grease to the threads before reinstallation.

Q235B carbon steel; anti-corrosion spray coating; precision-machined to fit the output end bearing seat; ensures bearing stability and prevents lubricant leakage.

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P0100226AA

Gland, bearing, output end

1. Wear at the bearing contact edge; 2. Deformation from impact during maintenance; 3. Corrosion from oilfield contaminants and moisture.

1. Handle carefully during disassembly/installation to avoid impact damage; 2. Inspect for wear and deformation during each maintenance cycle; 3. Replace if it no longer secures the bearing properly.

45# carbon steel; heat-treated for strength; precision-machined contact surface; compatible with the output end bearing and designed to prevent bearing displacement during operation.

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4500100244

Bearing 352220

1. Wear and damage from contaminated lubricant containing metal debris; 2. Overheating failure from poor lubrication or insufficient grease; 3. Fatigue failure from long-term high torque and vibration.

1. Use high-quality lithium-based grease (NLGI Grade 2) for lubrication; 2. Inspect bearing temperature during operation (replace if >80℃); 3. Clean the bearing seat thoroughly before installation.

GCr15 bearing steel; double-row spherical roller bearing; model 352220; complies with GB/T 307-2015; high load-bearing capacity and resistance to vibration, suitable for heavy-duty drilling.

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4500100317

Bearing NU220E

1. Abrasive wear from metal debris in contaminated lubricant; 2. Bearing cage damage from improper installation (forced fitting); 3. Corrosion from moisture infiltration into the drive box.

1. Filter lubricant before refilling to remove debris; 2. Install with a press tool to avoid cage damage; 3. Apply anti-corrosion grease during storage or prolonged shutdowns.

GCr15 bearing steel; cylindrical roller bearing; model NU220E; high radial load capacity; designed for the input shaft of the upper box, ensuring smooth rotation under high torque.

1

P1100592AA

Spacer

1. Abrasive wear from contaminated lubricant; 2. Wear from contact with bearings and shafts; 3. Deformation from long-term load stress and vibration.

1. Replace lubricant regularly to avoid contamination; 2. Inspect for dimensional deviation during each maintenance cycle; 3. Replace if wear affects bearing or shaft alignment.

45# carbon steel; heat-treated for wear resistance; precision-ground surfaces; designed to adjust bearing clearance and ensure precise alignment of internal components.

2

P1400046AA

Lower spacer

1. Wear at contact surfaces with the lower oil seal seat and bearing; 2. Corrosion from oil leakage and moisture; 3. Damage from improper disassembly/installation.

1. Disassemble and install carefully using proper tools; 2. Clean the contact surfaces before installation; 3. Inspect for cracks or wear before reinstallation.

45# carbon steel; surface galvanized for anti-corrosion; precision-machined to fit the lower part of the drive box; ensures proper spacing between the oil seal seat and bearing.

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P0200362AA

Lower oil seal seat

1. Wear at the oil seal contact surface; 2. Corrosion from oil and environmental moisture; 3. Deformation from improper installation pressure.

1. Install evenly to avoid deformation; 2. Replace the oil seal every time the oil seal seat is removed; 3. Clean the contact surface to prevent debris from damaging the seal.

45# carbon steel; precision-machined oil seal contact surface; anti-rust coating; designed to fix and protect the lower oil seal, preventing lubricant leakage.

4

P0200363AA

Gland, oil seal

1. Wear from contact with the oil seal; 2. Thread wear from repeated disassembly; 3. Corrosion from oil leakage and drilling mud.

1. Tighten to specified torque to avoid damaging the oil seal; 2. Clean the thread and sealing surface before reinstallation; 3. Replace if the sealing surface is worn or corroded.

Q235B carbon steel; zinc-plated surface; precision-machined sealing surface; designed to compress the oil seal and ensure leak-tight sealing in harsh oilfield environments.

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5300200116

Oil seal PG120X150X4

1. Wear and aging of the seal lip from long-term high-temperature operation; 2. Damage from contaminated oil containing debris; 3. Deformation from improper installation (forced fitting).

1. Replace every 6 months or during each oil change; 2. Use a press tool for installation to avoid lip deformation; 3. Ensure the sealing surface is clean before installation.

Nitrile rubber (NBR) seal lip; steel skeleton; size PG120×150×4; heat-resistant up to 120℃; oil-resistant and wear-resistant, designed to prevent lubricant leakage from the drive box.

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P1000360AA

Adjusting shim

1. Wear from repeated adjustment and pressure; 2. Deformation from improper handling (bending); 3. Corrosion from lubricant and moisture.

1. Handle carefully to avoid bending or damage; 2. Adjust evenly to ensure uniform pressure on bearings/gears; 3. Replace if wear or deformation affects adjustment accuracy.

65Mn spring steel; precision-machined to different thicknesses; heat-treated for elasticity and wear resistance; used to adjust bearing clearance and gear meshing alignment.

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P1000362AA

Adjusting shim

1. Wear from bearing pressure and vibration; 2. Corrosion from oil contamination; 3. Damage from over-adjustment (excessive pressure).

1. Avoid over-adjustment to prevent excessive pressure on components; 2. Clean the shim before installation to remove debris; 3. Replace if the surface is worn or corroded.

65Mn spring steel; same high-quality material as P1000360AA; different thickness for flexible adjustment; compatible with internal bearing seats and gears.

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P1000363AA

Adjusting shim

1. Wear at contact surfaces with other shims or components; 2. Deformation from long-term load stress; 3. Corrosion from moisture in the drive box.

1. Inspect for flatness and wear during each maintenance cycle; 2. Store in a dry environment when not in use; 3. Replace if deformation exceeds 0.05mm.

65Mn spring steel; precision-machined for dimensional accuracy; anti-rust coating; used in conjunction with other adjusting shims for precise clearance adjustment.

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P1000364AA

Adjusting shim

1. Wear from repeated disassembly and adjustment; 2. Abrasive wear from contaminated lubricant; 3. Damage from improper handling.

1. Disassemble and store carefully to avoid damage; 2. Replace lubricant regularly to reduce abrasive wear; 3. Check for cracks before reinstallation.

65Mn spring steel; consistent material and precision with other adjusting shims; ensures compatibility and accurate adjustment of internal components.

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P1000398AA

Pad

1. Wear from long-term contact with components and vibration; 2. Compression deformation from excessive pressure; 3. Corrosion from oil and environmental moisture.

1. Ensure proper alignment during installation to avoid uneven pressure; 2. Inspect for compression and wear monthly; 3. Replace if thickness is reduced by more than 10%.

Rubber-reinforced fiber material; oil-resistant and wear-resistant; designed to reduce vibration, protect components, and fill gaps between mating surfaces.

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P1000399AA

Pad

1. Wear from contact with fasteners and components; 2. Degradation from exposure to high temperature and oil; 3. Damage from improper installation.

1. Install correctly to ensure full contact with mating surfaces; 2. Replace if hardened, cracked, or worn; 3. Avoid using damaged pads that could cause component misalignment.

High-temperature resistant rubber material; compatible with gear oil and drilling fluids; designed to protect fastener contact surfaces and reduce vibration-induced noise.

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P0200333AA

Flange disc

1. Wear at the connection surface from long-term torque transfer; 2. Corrosion from oil and environmental contaminants (mud, salt spray); 3. Deformation from uneven torque or improper installation.

1. Clean the connection surface thoroughly before installation; 2. Tighten bolts evenly to avoid deformation; 3. Inspect for corrosion and wear monthly.

Q235B carbon steel; precision-machined connection surface; galvanized for anti-corrosion; designed to connect the upper box to other components of the SJ Petro ZJ40 rig’s drive system.

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4301316035

Bolt M16X35

1. Thread wear from repeated assembly/disassembly; 2. Fatigue fracture from continuous vibration; 3. Corrosion from oilfield contaminants and moisture.

1. Tighten to 40-45 N·m torque with a torque wrench; 2. Apply anti-corrosion grease to threads before installation; 3. Replace after 3-5 disassembly cycles to avoid fatigue failure.

8.8-grade carbon steel; zinc plating for anti-corrosion; thread size M16X35; complies with GB/T 3098.1-2010; used for securing major components like the box body and upper cover.

2

4313000016

Spring washer16

1. Fatigue failure from long-term vibration-induced stress; 2. Deformation from over-tightening the matching bolt; 3. Corrosion from oil and environmental moisture.

1. Replace after each disassembly to maintain elasticity; 2. Use with matching M16 bolts to ensure proper fit; 3. Avoid over-tightening to prevent deformation or breakage.

65Mn spring steel; size M16; complies with GB/T 93-1987; heat-treated for elasticity; designed to prevent M16 bolts from loosening due to vibration.

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4301308025

Bolt M8X25

1. Thread wear from repeated use; 2. Corrosion from drilling mud and moisture; 3. Fatigue fracture from vibration in high-stress areas.

1. Tighten to 12-15 N·m torque; 2. Clean threads before installation to remove debris; 3. Inspect for cracks and wear monthly, replace if damaged.

8.8-grade carbon steel; galvanized surface for anti-corrosion; thread size M8X25; complies with GB/T 3098.1-2010; used for securing press plates and small components.

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4313000008

Spring washer 8

1. Wear from bolt pressure; 2. Corrosion from oil and moisture; 3. Deformation from improper installation (reverse fitting).

1. Install with the curved side towards the nut to ensure proper locking; 2. Replace if deformed, rusted, or worn; 3. Use only with matching M8 bolts.

65Mn spring steel; size M8; complies with GB/T 93-1987; heat-treated for elasticity; prevents M8 bolts from loosening during rig operation.

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4301312030

Bolt M12X30

1. Thread deformation from over-tightening; 2. Fatigue fracture from heavy-load vibration; 3. Corrosion from oil and environmental contaminants.

1. Use a torque wrench (30-35 N·m) to avoid over-tightening; 2. Apply anti-corrosion grease to threads; 3. Inspect for cracks quarterly, replace if damaged.

8.8-grade alloy steel; galvanized surface; thread size M12X30; complies with GB/T 3098.1-2010; used for securing bearing glands and flanges.

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4313000012

Spring washer 12

1. Fatigue deformation from continuous vibration; 2. Breakage from over-tightening the matching M12 bolt; 3. Corrosion from moisture and oil.

1. Replace after each disassembly to ensure effective locking; 2. Avoid over-compression during installation; 3. Store in a dry environment when not in use.

65Mn spring steel; size M12; complies with GB/T 93-1987; heat-treated for elasticity; designed to lock M12 bolts in place, preventing vibration-induced loosening.

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4301806020

Bolt M6X20

1. Cross-threading damage during installation; 2. Vibration-induced loosening; 3. Wear from small-component movement and contact.

1. Align threads manually before tightening to avoid cross-threading; 2. Use a small torque wrench (8-10 N·m); 3. Replace after 5+ uses to ensure reliability.

6-grade carbon steel; zinc plating for anti-corrosion; thread size M6X20; complies with GB/T 3098.1-2010; used for securing small auxiliary components like pads.

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4301308020

Bolt M8X20

1. Thread wear from repeated assembly/disassembly; 2. Corrosion from environmental moisture; 3. Fatigue fracture from vibration in low-stress areas.

1. Tighten to 10-12 N·m torque; 2. Clean threads before installation; 3. Inspect for wear and corrosion monthly, replace if needed.

8.8-grade carbon steel; galvanized surface; thread size M8X20; complies with GB/T 3098.1-2010; used for securing gland components and small covers.

9

4301212025

Bolt M12X25

1. Thread wear from repeated use; 2. Deformation from over-tightening; 3. Corrosion from oil leakage and drilling mud.

1. Tighten to 25-30 N·m torque with a torque wrench; 2. Apply anti-corrosion grease to threads; 3. Replace if threads are damaged or corroded.

8.8-grade alloy steel; zinc plating for anti-corrosion; thread size M12X25; complies with GB/T 3098.1-2010; used for securing bearing glands and output shaft components.

What lubricant should I use for the Z06110000002AA rotary table drive upper box?

For gears (bull gear, pinion), use ISO VG 68 industrial gear oil (API GL-4 compliant) to reduce tooth wear and ensure smooth torque transfer. For bearings (352220, NU220E), use high-temperature lithium-based grease (NLGI Grade 2) to resist overheating and contamination. Replace lubricant every 500 working hours, or immediately if contaminated by mud or water—complying with API 7K maintenance guidelines.

How do I detect early signs of gear failure in the upper box?

Early warning signs include abnormal grinding or squeaking noise during operation (indicating uneven meshing), reduced rotary table torque, and visible tooth wear (check during maintenance). Additionally, increased lubricant temperature or metal debris in the oil (detected during oil changes) may signal gear damage. Stop operation immediately to inspect and avoid further component failure.

Can I replace individual components of the upper box, or do I need to replace the entire assembly?

All individual components (gears, bearings, seals, fasteners, shims) can be replaced separately. Always use genuine parts matching the original part numbers (e.g., Bearing 352220 with 4500100244, Oil Seal PG120X150X4 with 5300200116) to ensure compatibility. The entire upper box only needs replacement if the box body is severely deformed, cracked, or welded joints fail—per API 7K safety standards.