Rotary Table Drive Lower Box Z06110000001AA for ZJ40 Drilling Rig

1

Z06110000001AA

Rotary table drive lower box

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

1. Inspect for deformation and cracks quarterly; 2. Check oil level weekly and replace lubricant every 500 working hours; 3. Tighten fasteners monthly to reduce vibration impact.

Integrated assembly with Q355B low-alloy steel box body; precision-machined internal cavity; compatible with ZJ40 rotary table transmission system; meets API 7K performance standards.

2

Z06110100001AA

Box body

1. Impact damage from drilling debris; 2. Corrosion from drilling mud and moisture; 3. Fatigue cracking at welding joints from continuous vibration.

1. Clean external surface regularly to remove mud and debris; 2. Apply anti-corrosion paint annually; 3. Inspect welding joints quarterly for cracks.

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

3

Z06110101001AA

Oil level stick

1. Wear at the sealing end from repeated insertion/removal; 2. Corrosion from lubricant and moisture; 3. Breakage from improper handling.

1. Insert and remove gently to avoid bending/breakage; 2. Wipe clean before each use to prevent contamination; 3. Replace if the sealing end is worn or the stick is bent.

45# carbon steel; surface galvanized for anti-corrosion; precision-marked oil level scales; compatible with Z06110000001AA box body oil cavity.

4

Z03070100003AA

Air exhausting plug

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

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

H62 brass; precision-tapped threads; small-diameter vent hole for air release; designed to prevent lubricant leakage while exhausting air.

5

QBJ120108

Screw plug

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

1. Tighten with a torque wrench (15-20 N·m) to avoid over-tightening; 2. Replace the seal ring when disassembled; 3. Clean threads before reinstallation.

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

1

P3300001AA

Bull gear

1. Tooth wear from long-term meshing with the small gear; 2. Fatigue cracking from torque fluctuations; 3. Abrasive wear from contaminated lubricant.

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

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

2

P3300002AA

Small gear

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

1. Check gear meshing alignment quarterly; 2. Lubricate the shaft connection end weekly; 3. Replace if tooth deformation or cracks are found.

20CrMnTi alloy steel; heat-treated for wear resistance; precision-ground gear teeth; perfectly matched with P3300001AA bull gear for smooth transmission.

3

P2400047AA

Output shaft

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

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

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

4

P2400048AA

Input shaft

1. Wear at the gear connection end; 2. Bending from improper installation; 3. Fatigue fracture from continuous vibration.

1. Ensure precise alignment during installation; 2. Inspect for wear and cracks monthly; 3. Avoid overloading the input end with excessive torque.

40Cr alloy steel; heat-treated for strength; precision-machined to fit the small gear and bearings; compatible with ZJ40 rig power input system.

1

P0200347AA

Bearing seat, output end

1. Wear at the bearing contact surface; 2. Deformation from installation pressure; 3. Corrosion from lubricant and moisture.

1. Ensure proper installation torque to avoid deformation; 2. Clean the contact surface before installing the bearing; 3. Inspect for wear during each maintenance cycle.

45# carbon steel; precision-machined contact surface; surface anti-rust treatment; designed to fix and protect the output end bearing.

2

P0100045AA

Lower bearing glande, output end

1. Wear from bearing rotation; 2. Deformation from over-tightening; 3. Corrosion from oil leakage.

1. Tighten to specified torque (25-30 N·m); 2. Check for oil leaks regularly; 3. Replace if wear or deformation affects bearing protection.

Q235B carbon steel; precision-machined; anti-corrosion coating; fits the output end bearing seat to prevent bearing displacement.

3

P0200061AA

Upper bearing press plate, output end

1. Wear at the bearing contact surface; 2. Fatigue deformation from vibration; 3. Corrosion from oil contamination.

1. Inspect for flatness during maintenance; 2. Retighten fasteners monthly; 3. Clean and apply anti-corrosion grease regularly.

45# carbon steel; heat-treated for rigidity; precision-machined to ensure flatness; used to compress and fix the output end upper bearing.

4

P0200348AA

Gland,bearing

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

1. Install evenly to avoid uneven pressure on the bearing; 2. Replace the seal ring when disassembled; 3. Clean the gland before reinstallation.

Q235B carbon steel; zinc-plated surface; precision-machined sealing surface; compatible with the input end bearing seat.

5

P1100592AA

Left bearing gland

1. Wear at the bearing contact edge; 2. Deformation from impact during maintenance; 3. Corrosion from drilling mud.

1. Handle carefully during disassembly/installation; 2. Clean external surface regularly to remove mud; 3. Replace if wear affects bearing positioning.

Q235B carbon steel; anti-corrosion spray coating; precision-machined to fit the left bearing seat; ensures bearing stability during operation.

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P0100217AA

Left bearing press plate, output end

1. Wear from long-term contact with the bearing; 2. Corrosion from oil and moisture; 3. Deformation from over-tightening.

1. Use a torque wrench to avoid over-tightening; 2. Inspect for corrosion monthly; 3. Replace if deformation is detected.

45# carbon steel; surface galvanized; precision-machined contact surface; designed to fix the left bearing of the output end.

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P0200060AA

Bearing seat, input end

1. Wear at the bearing contact surface; 2. Corrosion from lubricant impurities; 3. Deformation from input end vibration.

1. Clean the bearing seat before installing the bearing; 2. Replace lubricant regularly to avoid contamination; 3. Inspect for wear and deformation quarterly.

45# carbon steel; precision-machined; internal anti-rust coating; fits the input end bearing (4500100244, 4500100317) perfectly.

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4500100244

Bearing 352220

1. Wear from contaminated lubricant; 2. Overheating damage from poor lubrication; 3. Fatigue failure from long-term high torque.

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

GCr15 bearing steel; double-row spherical roller bearing; model 352220; complies with GB/T 307-2015; rated dynamic load suitable for ZJ40 rigs.

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4500100317

Bearing NU220E

1. Abrasive wear from metal debris in lubricant; 2. Bearing cage damage from improper installation; 3. Corrosion from moisture in the system.

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

GCr15 bearing steel; cylindrical roller bearing; model NU220E; high load-bearing capacity; designed for the input end of the drive box.

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P1000361AA

Spacer, output end

1. Wear at contact surfaces with bearings and shafts; 2. Deformation from installation pressure; 3. Corrosion from oil leakage.

1. Ensure proper installation torque to avoid deformation; 2. Clean contact surfaces before installation; 3. Inspect for wear during each oil change.

45# carbon steel; precision-machined to ensure dimensional accuracy; surface anti-rust treatment; used to adjust output end bearing clearance.

2

P1000358AA

Washer

1. Wear from bolt tightening pressure; 2. Deformation from uneven pressure; 3. Corrosion from environmental moisture.

1. Use with matching bolts to ensure even pressure; 2. Replace if deformed or corroded; 3. Clean before installation to remove debris.

Q235B carbon steel; galvanized surface; precision-machined to ensure flatness; distributes bolt pressure to protect components.

3

P1100071AA

Spacer

1. Abrasive wear from contaminated lubricant; 2. Wear from bearing rotation; 3. Deformation from long-term load stress.

1. Replace lubricant regularly to avoid contamination; 2. Inspect for dimensional deviation during maintenance; 3. Replace if wear affects bearing positioning.

45# carbon steel; heat-treated for wear resistance; precision-ground surfaces; fits the input end bearing and shaft.

4

P1400232AA

Spacer

1. Wear at connection points with transmission components; 2. Corrosion from oil and moisture; 3. Damage from improper disassembly.

1. Disassemble carefully using proper tools; 2. Clean and apply anti-corrosion grease after disassembly; 3. Inspect for cracks before reinstallation.

45# carbon steel; surface galvanized; precision-machined to fit Z06110000001AA internal components; ensures precise alignment.

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P1000360AA

Press plate

1. Wear from long-term contact with components; 2. Deformation from torque and vibration; 3. Corrosion from oilfield contaminants.

1. Inspect for flatness quarterly; 2. Retighten connection fasteners monthly; 3. Clean and apply anti-corrosion grease regularly.

Q235B carbon steel; 5mm thickness; surface anti-corrosion treatment; designed to compress and fix internal components.

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P1000362AA

Adjusting shim

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

1. Handle carefully to avoid bending; 2. Adjust evenly to ensure uniform pressure; 3. Replace if wear or deformation is detected.

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

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P1000363AA

Adjusting shim

1. Wear from bearing pressure; 2. Corrosion from oil contamination; 3. Damage from over-adjustment.

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

65Mn spring steel; same material as P1000362AA; different thickness for flexible adjustment; compatible with internal bearing seats.

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P1000364AA

Adjusting shim

1. Wear at contact surfaces with other shims; 2. Deformation from long-term load; 3. Corrosion from moisture in the system.

1. Inspect the contact surface for wear during maintenance; 2. Store in a dry environment when not in use; 3. Replace if deformation affects adjustment accuracy.

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

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P1000362AA

Adjusting shim

1. Wear from repeated disassembly and adjustment; 2. Bending from improper handling; 3. Corrosion from oil and environmental moisture.

1. Disassemble and store carefully; 2. Clean after each use; 3. Replace if bending or wear exceeds 0.05mm.

65Mn spring steel; consistent material and precision with other adjusting shims; ensures compatibility and adjustment accuracy.

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P1000361AA

Seal shim

1. Wear from repeated assembly and disassembly; 2. Damage from debris on mating surfaces; 3. Deformation from over-tightening.

1. Replace every time components are disassembled; 2. Clean mating surfaces thoroughly before installation; 3. Avoid over-compression to prevent deformation.

Non-asbestos fiber reinforced with nitrile rubber; heat-resistant up to 120°C; oil-resistant; ensures leak-tight sealing between components.

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5300200116

Oil seal PG120X150X14

1. Wear and aging from long-term high-temperature operation; 2. Damage from contaminated oil; 3. Deformation from improper installation.

1. Replace every 6 months or during oil changes; 2. Use clean lubricant to avoid contaminant damage; 3. Install with a press tool to avoid lip deformation.

Nitrile rubber (NBR) seal lip; steel skeleton; size PG120×150×14; heat-resistant up to 120℃; oil-resistant and wear-resistant.

1

4301316040

Bolt M16X40

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

1. Tighten to 45-50 N·m torque; 2. Apply anti-corrosion grease to threads; 3. Replace after 3-5 disassembly cycles.

8.8-grade carbon steel; zinc plating for anti-corrosion; thread size M16X40; complies with GB/T 3098.1-2010.

2

4313000016

Spring washer M16

1. Fatigue failure from repeated vibration; 2. Deformation from over-tightening; 3. Corrosion from oil and moisture.

1. Replace after each disassembly; 2. Use a torque wrench to avoid over-tightening; 3. Store in a dry environment when not in use.

65Mn spring steel; size M16; complies with GB/T 93-1987; heat-treated for elasticity; prevents bolt loosening.

3

4301312030

Bolt M12X30

1. Thread deformation from over-tightening; 2. Fatigue fracture from heavy-load vibration; 3. Corrosion from mud and moisture.

1. Use a torque wrench (30-35 N·m); 2. Clean threads before installation; 3. Inspect for cracks quarterly.

8.8-grade alloy steel; galvanized; thread size M12X30; high strength for securing bearing glands and press plates.

4

4313000012

Spring washer M12

1. Fatigue deformation from repeated vibration; 2. Breakage from over-tightening; 3. Corrosion from moisture and oil.

1. Replace after each disassembly; 2. Use with matching M12 bolts; 3. Avoid over-compression during installation.

65Mn spring steel; size M12; complies with GB/T 93-1987; heat-treated for elasticity; prevents M12 bolt loosening.

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4301308025

Bolt M8X25

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

1. Tighten to 12-15 N·m torque; 2. Apply anti-corrosion grease; 3. Inspect for cracks and wear monthly.

8.8-grade carbon steel; galvanized; thread size M8X25; complies with GB/T 3098.1-2010; used for securing small components.

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4313000008

Spring washer M8

1. Wear from bolt pressure; 2. Corrosion from oil and moisture; 3. Deformation from improper use.

1. Select matching size with M8 bolts; 2. Replace if deformed or rusted; 3. Install correctly (curved side towards the nut).

65Mn spring steel; size M8; complies with GB/T 93-1987; anti-corrosion surface treatment; used for general fastening.

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4301310020

Bolt M10X20

1. Thread wear from repeated use; 2. Vibration-induced loosening; 3. Corrosion from environmental moisture.

1. Tighten to 18-22 N·m torque; 2. Pair with spring washer M10; 3. Inspect threads for damage before reuse.

8.8-grade carbon steel; zinc plating; thread size M10X20; complies with GB/T 3098.1-2010; used for securing bearing glands.

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4313000010

Spring washer M10

1. Fatigue failure from long-term vibration; 2. Corrosion from oil and moisture; 3. Deformation from over-tightening.

1. Replace after each disassembly; 2. Use a torque wrench to avoid overloading; 3. Store in a dry, clean environment.

65Mn spring steel; size M10; complies with GB/T 93-1987; heat-treated for elasticity; prevents M10 bolt loosening.

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4301306016

Bolt M6X16

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

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

6-grade carbon steel; zinc plating; thread size M6X16; complies with GB/T 3098.1-2010; for securing small auxiliary components.

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4313000006

Spring washer M6

1. Fatigue deformation from vibration; 2. Corrosion from moisture; 3. Breakage from over-tightening.

1. Replace after each disassembly; 2. Use with matching M6 bolts; 3. Avoid over-tightening to prevent breakage.

65Mn spring steel; size M6; complies with GB/T 93-1987; heat-treated for elasticity; used for M6 bolt locking.

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P5400106AA

Input and output end key

1. Shear damage from excessive torque; 2. Wear at contact surfaces with shafts and gears; 3. Deformation from improper installation.

1. Ensure proper fit during installation (no loose/tight fit); 2. Avoid sudden torque changes; 3. Inspect for wear monthly.

45# carbon steel; precision-machined to GB/T 1096-2003; designed to transmit torque between input/output shafts and gears.

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P5400113AA

Key

1. Wear from repeated assembly and disassembly; 2. Shear failure from torque overload; 3. Corrosion from oil and moisture.

1. Install and remove carefully to avoid damage; 2. Replace if wear or deformation is detected; 3. Apply anti-corrosion grease during installation.

45# carbon steel; heat-treated for strength; precision-machined to fit shaft and component keyways; compatible with internal transmission parts.

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P0200333AA

Flange disc

1. Wear at the connection surface; 2. Corrosion from oil and environmental contaminants; 3. Deformation from uneven torque.

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

Q235B carbon steel; precision-machined connection surface; galvanized for anti-corrosion; designed to connect the drive box to other components.

What lubricant is suitable for the Z06110000001AA drive box?

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

How to identify early signs of bearing failure in the drive box?

Early warning signs include abnormal grinding/squeaking noise from the drive box, increased bearing temperature (exceeding 80℃), and uneven torque transmission. Additionally, oil leakage around the bearing gland may indicate seal damage, leading to bearing contamination. If any signs appear, stop operation to inspect and avoid further damage.

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

Most components (gears, bearings, seals, fasteners, shims) can be replaced individually. Use genuine parts matching the original part numbers (e.g., bearing 352220 with 4500100244) to ensure compatibility. The entire drive box only needs replacement if the box body is severely deformed, cracked, or welded joints fail—per API 7K safety standards.