Product Introduction
This curated assortment covers all mission-critical power end components for the Weir SPM TWS 600S triplex pump, including OEM crankshaft (1P100080), main bearings (inner fixed/floating, outer), connecting rods, crosshead assemblies, wrist pins, bearing cones/cups, gaskets, shim sets, gear reducer lube assemblies, and oil seals. All parts comply with API 6A, API 7K quality benchmarks, and Weir SPM OEM performance requirements, with full material traceability and factory load testing up to 600HP rated capacity. The lineup features forged alloy steel crankshafts, heat-treated precision bearings, high-temperature resistant gaskets, and precision-machined crosshead components, fully mapped to Weir SPM OEM item codes for simplified inventory management and emergency field repairs.
Functional Performance Specifications
These Weir SPM TWS 600S pump spare parts deliver industry-leading mechanical reliability: forged crankshafts withstand continuous heavy reciprocating loads with a fatigue life of 25,000+ operating hours; precision main bearings reduce friction loss by 35%, maintaining stable shaft rotation and minimizing heat buildup; crosshead assemblies ensure perfect plunger alignment, reducing side load wear; multi-piece shim sets enable precise bearing preload adjustment (tolerance ±0.0002 inch); high-temperature gaskets provide zero oil leakage at operating temperatures up to 350°F; and the gear reducer lube assembly ensures consistent lubrication for extended gear and bearing life.
Structural & Material Features
- OEM Precision Forging & Machining: All metal components are forged and machined to tight tolerances, ensuring perfect fitment with TWS 600S power end modules and eliminating premature wear from misalignment
- High-Strength Alloy Steel Construction: Crankshafts, connecting rods, and crosshead components use hardened alloy steel for exceptional load-bearing capacity and resistance to fatigue cracking
- Premium Bearing Materials: Tapered roller bearing cones/cups and radial main bearings feature high-grade steel with precision ground surfaces for low friction and long service life
- Heat & Oil Resistant Gaskets: Composite fiber gaskets withstand high operating temperatures and pump oil exposure, preventing lubrication leaks and contamination
- Modular Shim & Seal Design: Pre-sized shim sets and metal oil seals simplify field adjustments and replacements, reducing repair time and ensuring consistent performance
Applicable Operating Conditions
These spare parts are built for harsh heavy-duty oilfield environments, optimized for Weir SPM TWS 600S triplex pumps used in hydraulic fracturing, well cementing, pressure testing, and acidizing operations. They perform reliably in ambient temperatures ranging from -30°F to 375°F, resist exposure to pump oil, drilling mud, and abrasive contaminants, and endure continuous high-cycle reciprocating loads. Components are suitable for onshore well sites, mobile pumping units, and fixed pressure pumping facilities, fully complying with API 6A/API 7K safety standards.
Maintenance & Service Recommendations
- Inspect main bearings and crankshaft journals every 400 operating hours for wear, scoring, or heat discoloration; replace full bearing sets during scheduled overhauls (every 12 months or 3,000 operating hours)
- Check all gasket seals (rear cover, side cover, bearing housing) quarterly for oil leakage; replace damaged gaskets immediately to prevent lubrication loss and component failure
- Lubricate crosshead assemblies, wrist pins, and connecting rod bearings every 200 operating hours with recommended high-temperature pump oil to reduce friction wear
- Verify shim set alignment and bearing preload every 6 months to maintain proper crankshaft rotation and minimize vibration
- Inspect gear reducer lube assembly monthly for proper oil flow; clean or replace components to ensure consistent lubrication to gear sets
- Stock critical high-wear parts (bearings, gaskets, shims, oil seals) at recommended minimum levels to avoid unplanned downtime during emergency repairs
- We supply the following spare parts:
| # | ITEM CODE | DESCRIPTION | UOM |
| 1 | 1P100080 | CRNKSHFT/TRIPLEX/6″ STRK/9″ CENTERS ; P.NO : 1P100080 | Each |
| 2 | 2P103101 | REAR COVER GASKET | Each |
| 3 | 3P103110 | TOP/BOTTOM COVER GASKET | Each |
| 4 | 2A100170 | GEAR REDUCER LUBE ASSEMBLY | Each |
| 5 | 4P100092 | OUTSIDE BEARING GASKET | Each |
| 6 | 4P100084 | SHIM SET | Each |
| 7 | P100109 | MAIN BEARING ( OUTSIDE ) | Each |
| 8 | P100110 | MAIN BEARING ( INSIDE FIXED ) | Each |
| 9 | P100111 | MAIN BEARING ( INSIDE FLOATING ) | Each |
| 10 | 1P102967 | CONNECTING ROD | Each |
| 11 | 2P102975 | CROSSHEAD GUIDE | Each |
| 12 | P105906 | WRIST PIN RETAINER RING ; P.NO : P105906 | Each |
| 13 | 2P105902 | CROSS HEAD WRIST PIN/SHORT | Each |
| 14 | 3P100089 | WRIST PIN BEARING | Each |
| 15 | 2P100108 | CONNECTING ROD BEARING | Each |
| 16 | P100167 | BULL RING BEARING CUP | Each |
| 17 | P100168 | BULL RING BEARING CONE | Each |
| 18 | P100166 | Pinion Bearing Cone | Each |
| 19 | P100165 | Pinion Bearing Cup | Each |
| 20 | P100066 | OIL BREATHER FOR SPM PUMP TWS 600S | Each |
| 21 | 2P100077 | OUTSIDE BEARING HOUSE ; P.NO : 2P100077 | Each |
| 22 | 3A105905 | CROSS HEAD ASSEMBLY SHORT PIN FOR SPM PUMP TWS 600S | Each |
| 23 | 3P103085 | SIDE COVER GASKET FOR SPM PUMP TWS 600S | Each |
| 24 | P100169 | SEAL/OIL/4.6:1 RED ( Metal Seal ) ; P.NO : P100169 | Each |
Field Failure Repair Case Studies
Case 1: TWS 600S Outer Main Bearing Failure
A wellsite experienced excessive crankshaft vibration and overheating due to worn outer main bearings (P100109). Replacing the OEM outer main bearings and adjusting shim sets restored stable shaft rotation, eliminated vibration, and resumed normal pumping operations.
Case 2: Crosshead Wrist Pin Wear & Misalignment
The TWS 600S pump suffered plunger misalignment and uneven wear caused by damaged crosshead wrist pins (2P105902) and retainer rings. Installing OEM wrist pins and retainer rings corrected alignment, reduced side loading, and prevented further plunger damage.
Case 3: Bearing Housing Oil Leakage
Severe oil leakage from the outer bearing housing led to lubrication loss, traced to degraded outside bearing gaskets (4P100092). Fitting new OEM gaskets eliminated leakage, maintained proper oil levels, and protected internal bearings from premature failure.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with Weir SPM TWS 600S pumps? | Yes, this parts list is engineered exclusively for the Weir SPM TWS 600S triplex pump, matching OEM item codes and 6-inch stroke/9-inch center specifications for perfect drop-in fitment. |
| Do these bearings meet API 7K industry standards? | Absolutely, all main bearings, pinion bearings, and crosshead bearings comply with API 7K standards, matching Weir SPM OEM load-bearing and durability requirements. |
| Can these parts be used for routine overhauls and emergency repairs? | Yes, these OEM-grade spares are designed for both scheduled preventive maintenance and emergency field repairs to minimize costly wellsite downtime. |
Procurement Guidance
This Weir SPM TWS 600S pump spare parts catalog serves as both a formal procurement benchmark and a technical troubleshooting reference, designed to eliminate the risks of substandard aftermarket parts, reduce long-term maintenance expenses, and uphold the safety and operational reliability of your heavy-duty pressure pumping equipment. Every part is a verified OEM-certified component that guarantees perfect fitment, consistent heavy-load performance, and compliance with API 6A/API 7K and Weir SPM quality standards, making it the definitive resource for maintaining Weir SPM TWS 600S pumps.
