BOMCO F-1300/1600 Mud Pump Crankshaft Assembly

1

Crankshaft AH130102020400 (F-1300/F-1600)

High-strength alloy steel (40CrNiMoA) with carburizing, quenching, and tempering for fatigue resistance

1. Fatigue cracks from continuous high-load operation; 2. Surface wear from misaligned bearings.

1. Conduct quarterly non-destructive testing per API 7K Clause 9.3; 2. Ensure precise alignment during installation.

2

Bearing Carrier, Right AH1301020201 (F-1300), AH1601020101 (F-1600)

Cast alloy steel, heat-treated for toughness, corrosion-resistant coating

1. Deformation from uneven bearing pressure; 2. Corrosion from drilling mud contamination.

1. Monitor bearing pressure regularly; 2. Clean and inspect for mud residue after each drilling job.

3

Bearing Carrier, Left AH1301020206 (F-1300), AH1601020103 (F-1600)

Cast alloy steel, hardened surfaces, anti-rust coating

1. Wear from bearing rotation; 2. Stress cracks from vibration during drilling.

1. Replace if surface wear exceeds 0.3mm; 2. Use vibration-damping mounts to reduce stress.

4

Eccentric Strap AH1301020202 (F-1300), AH1601020102 (F-1600) (Qty:3)

Alloy steel (20CrMnTi), precision-machined, wear-resistant lining

1. Lining wear from eccentric rotation; 2. Bolt loosening leading to misalignment.

1. Inspect lining thickness monthly; 2. Retighten bolts per OEM torque specs before each use.

5

Eccentric Ring Gear (Solid type) AH130101021000 (F-1300), AH160101010400 (F-1600)

High-carbon alloy steel, carburized gear teeth, anti-wear coating

1. Gear tooth wear from meshing friction; 2. Tooth chipping from sudden load spikes.

1. Lubricate gear teeth before each operation; 2. Avoid sudden load changes during drilling.

6

Eccentric Ring Gear (Split Type) AH130101021900 (F-1300), AH160101010900 (F-1600) (R1)

Alloy steel, split design for easy installation, hardened gear teeth

1. Split joint wear from vibration; 2. Gear tooth fatigue from continuous operation.

1. Inspect split joint for wear quarterly; 2. Replace if gear teeth show signs of chipping.

7

Main Bearing Cover AH130101020100 (F-1300/F-1600) (Qty:2)

Cast iron, reinforced structure, rubber gasket seal

1. Warping from high temperature; 2. Seal damage leading to lubricant leakage.

1. Monitor operating temperature (max 85℃); 2. Replace gaskets annually or if leaks occur.

8

Spacer, Main Bearing AH1301010211 (F-1300/F-1600) (Qty:2)

Stainless steel, precision-machined for tight tolerance

1. Wear from bearing pressure; 2. Corrosion from lubricant contamination.

1. Inspect for wear during lubricant replacement; 2. Use clean, OEM-specified lubricant.

1

Main Bearing AH1301010218 (F-1300), AH1601010108 (F-1600) (Qty:2)

Chrome steel (GCr15), precision bearings, high-temperature grease filling

1. Seizure from insufficient lubrication; 2. Wear from contaminated lubricant.

1. Replace lubricant every 500 working hours; 2. Install filters to keep lubricant clean.

2

Eccentric Bearing AH1301010217 (F-1300), AH1601010107 (F-1600) (Qty:3)

Alloy steel bearings, synthetic grease seal, wear-resistant raceways

1. Raceway wear from eccentric rotation; 2. Seal damage leading to grease loss.

1. Inspect seal integrity monthly; 2. Replenish grease every 200 working hours.

3

Inner Race Retainer AH1301010204 (F-1300/F-1600) (Qty:2)

Carbon steel, heat-treated for strength, corrosion-resistant coating

1. Wear from bearing rotation; 2. Loosening leading to bearing misalignment.

1. Tighten to OEM torque specs during installation; 2. Inspect for looseness weekly.

4

Inner Race Retainer (I) AH1301020203 (F-1300/F-1600)

Carbon steel, precision-machined, anti-rust treatment

1. Deformation from bearing pressure; 2. Corrosion from moisture in the assembly.

1. Replace if deformation is detected; 2. Keep the assembly dry during storage.

5

Inner Race Retainer (II) AH1301020205 (F-1300/F-1600)

Carbon steel, hardened surfaces, wear-resistant coating

1. Surface wear from bearing contact; 2. Fatigue from continuous vibration.

1. Inspect surface wear monthly; 2. Replace if wear exceeds 0.2mm.

6

Outer Race Retainer AH130101020500 (F-1300), AH160101010200 (F-1600) (Qty:3)

Alloy steel, rigid structure, precision-fit design

1. Wear from outer bearing rotation; 2. Loosening leading to bearing damage.

1. Retighten fasteners quarterly; 2. Inspect for fitment issues during maintenance.

7

Outer Race Retainer-main bearing AH1301010213 (F-1300), AH1601010106 (F-1600) (Qty:2)

Carbon steel, reinforced design, anti-corrosion coating

1. Wear from main bearing rotation; 2. Corrosion from lubricant moisture.

1. Replace lubricant regularly to reduce moisture; 2. Inspect for corrosion annually.

8

Inner Race Retainer-main bearing AH1301010214 (F-1300/F-1600) (Qty:2)

Alloy steel, heat-treated, precision-machined for bearing fit

1. Misalignment-induced wear; 2. Fatigue from high-load operation.

1. Ensure precise alignment during installation; 2. Monitor load to avoid overstress.

9

Shim set AH130101021600 (F-1300/F-1600)

Stainless steel, thin-gauge precision sheets, corrosion-resistant

1. Bending from improper installation; 2. Wear from bearing pressure.

1. Install per OEM alignment specs; 2. Replace if bent or worn.

1

Nut 1 1/2-8UN T501-303.0 (F-1300/F-1600) (Qty:12)

High-strength carbon steel, heat-treated, zinc-plated for corrosion resistance

1. Thread wear from repeated tightening; 2. Loosening from drilling vibration.

1. Use lock wire or thread locker; 2. Retighten every 100 working hours.

2

Bolt 1 1/2-8UN×5 1/2 T500-2023 (F-1300/F-1600) (Qty:12)

Alloy steel (10.9 grade), heat-treated, precision threads

1. Thread fatigue from high torque; 2. Bend from uneven load.

1. Tighten to OEM torque specs (avoid over-tightening); 2. Replace if threads are damaged.

3

Bolt 1 1/2-8UN×7 T500-2033 (F-1300/F-1600) (Qty:12) (R2)

High-strength alloy steel, corrosion-resistant coating, 10.9 grade

1. Fatigue from vibration; 2. Corrosion from drilling mud exposure.

1. Apply thread locker (243) during installation; 2. Clean threads after use.

4

Bolt 5/8-11UNC×1 1/2 T500-1018K (F-1300/F-1600) (Qty:72)

Carbon steel, zinc-plated, precision threads

1. Thread wear from frequent disassembly; 2. Rust from moisture.

1. Store in dry conditions; 2. Replace if rust or thread damage occurs.

5

Bolt 5/8-11UNC×1 3/4 T500-1008 (F-1300/F-1600) (Qty:28)

Alloy steel, heat-treated, anti-rust coating

1. Loosening from vibration; 2. Head damage from improper tool use.

1. Use proper socket tools; 2. Secure with lock washers.

6

Main bearing bolt AH1301010215 (F-1300/F-1600) (Qty:4)

High-strength alloy steel (12.9 grade), carburized, precision threads

1. Fatigue from high bearing pressure; 2. Thread damage from over-tightening.

1. Tighten to exact OEM torque; 2. Replace after 2000 working hours.

7

Bolt 5/8-11UNC×4 T500-3004K (F-1300/F-1600) (Qty:2)

Alloy steel, zinc-plated, 10.9 grade

1. Corrosion from lubricant moisture; 2. Loosening from vibration.

1. Apply anti-corrosion grease; 2. Check tightness monthly.

8

Bolt 5/8-11UNC×4 3/4 T500-3006K (F-1300/F-1600) (Qty:2)

High-strength carbon steel, heat-treated, anti-wear threads

1. Wear from repeated use; 2. Bend from uneven torque.

1. Use torque wrench for installation; 2. Inspect for straightness before reuse.

9

Washer16 （GB848） 420501036160200000 (F-1300/F-1600) (Qty:28)

Stainless steel, flat design, corrosion-resistant

1. Deformation from high torque; 2. Rust from moisture exposure.

1. Replace if deformed; 2. Pair with compatible bolts to distribute torque.

10

Gasket AH1301010203 (F-1300/F-1600) (Qty:2)

Nitrile rubber, oil-resistant, high-temperature tolerance (-20℃ to 80℃)

1. Deterioration from high temperature; 2. Damage from improper installation.

1. Replace during each assembly disassembly; 2. Avoid over-tightening to prevent tearing.

11

Lock WireΦ1.5 （GB343） 040101010150600000 (F-1300/F-1600) (Qty:40m)

Stainless steel, flexible, corrosion-resistant

1. Fatigue from repeated bending; 2. Rust from saltwater (offshore use).

1. Use proper bending techniques to avoid breakage; 2. Replace after each disassembly.

12

Lock WireΦ3 （GB343） 040101010300600000 (F-1300/F-1600) (Qty:3m)

High-strength stainless steel, rigid, wear-resistant

1. Breakage from over-bending; 2. Wear from contact with moving parts.

1. Avoid bending beyond minimum radius; 2. Secure away from rotating components.

13

Glue for Screw Lock 243 170506010100243000 (F-1300/F-1600) (Qty:90ml)

Anaerobic thread locker, high-temperature resistance (up to 150℃)

1. Degradation from high temperature; 2. Contamination from dirt/moisture.

1. Store in sealed container at room temperature; 2. Clean threads before application.

How to distinguish F-1300 and F-1600 compatible parts?

Parts with dual part numbers (e.g., AH1301020201/AH1601020101) fit both models; single-part-number parts are model-specific. Refer to the product description or contact us for cross-verification to avoid mismatch.

What lubricant is recommended for crankshaft assembly bearings?

Use OEM-specified high-temperature, anti-wear hydraulic lubricant (ISO VG 68) that meets API 7K requirements. Avoid mixing lubricant brands, and replace every 500 working hours to prevent contamination.

When should I replace the crankshaft and eccentric straps?

Replace the crankshaft if fatigue cracks or surface wear exceed 0.5mm (verified via non-destructive testing). Replace eccentric straps when lining thickness drops below OEM specs or if misalignment cannot be corrected.