SB68FJC-5.1.0A, Bearing 7311ACM W21157311 and Full Range Accessories for SB Series Pumps

Introduction

In oilfield production, industrial fluid transportation, and mechanical equipment operation, pumps are the core driving force that ensures continuous production, and the quality and compatibility of spare parts directly determine the operational stability, efficiency, and maintenance cost of pump systems. We focus on supplying a full range of high-standard pump spare parts, covering 100 key specifications, including core models such as Pump head X11276001 SB68FJC-5.1.0A, Bearing 7311ACM W21157311, Bearing 2311 W21102311, Pump head-ZJ X01158001, Impeller SB45J-33.1.9, and supporting accessories like Motor W31710114, Motor YB2-280S-4, Triangle V-belt 5V-2000, and fasteners complying with national standards (GB/T91-2000, GB/T858-1988, GB/T5783-2000). Our products are precisely tailored to the segmented needs of different target users: for oilfield maintenance engineers, we provide quick-replacement, wear-resistant and corrosion-resistant spare parts to minimize unplanned downtime and reduce maintenance labor intensity; for procurement personnel of industrial plants and mechanical enterprises, we offer cost-effective, stable-supply parts that lower long-term maintenance costs and inventory pressure; for technical supervisors, we provide products that fully comply with international and national industry standards, with complete traceability, to ensure safe and efficient equipment operation. The core purpose of our spare parts is to solve the most common pain points in pump operation—such as pump head leakage, bearing overheating, impeller wear, belt slipping, and difficult replacement of special accessories—ensuring that your SB series pumps (SB68, SB56, SB45, SB34, SB23) and supporting motor systems operate continuously, stably, and efficiently. All our products comply with ISO 9001 quality management system, API 685 standard (2022 version), and relevant national standards, with a product qualification rate of 99.93, 24 years of professional experience in producing and supplying pump spare parts, a cumulative supply of 218,000 pieces, and serving more than 1,500 cooperative customers in oilfield, industrial, and mechanical fields. Our Bearing 7311ACM W21157311 has a rated dynamic load of 143kN and a limit speed of 5000 r/min under oil lubrication, ensuring stable operation under heavy load conditions, while Bearing 2311 W21102311 has a basic rated dynamic load of 76.1kN, perfectly adapting to the working requirements of SB series pumps.

Product Overview

Core Product Introduction

Our product range covers all key components of SB series pumps and supporting motor systems, including pump heads (SB68FJC-5.1.0A, X01158001, X01143001, SB56ZJC-28.1.0A), bearings (7311ACM W21157311, 2311 W21102311), impellers (SB45J-33.1.9, X01122002, SB23J-50.1.2A), transmission parts (Motor pulley SB68JP-1.5.1, SB68JP-3.3, Triangle V-belt 5V-2000, 5V-1950), fasteners (Bolt M18×180 X01813027, M16×50 W01002166, M12×40 GB/T5783-2000, Split pin 4×30 GB/T91-2000, Stop washer 68 GB/T858-1988), seals (Oil seal 65×90×12 W12124653, 50×72×8 W12124501, O-ring 38×2.55 W1111038H), motor accessories (Motor W31710114, W31710025, W31710017, YB2-280S-4), and structural parts (Guard SB34-35.2, Base SB56-21.3.0, SB68-1.5.0, Shield X01154030). Each product is manufactured in strict accordance with the original equipment specifications, ensuring 100% compatibility with SB series pumps (SB68, SB56, SB45, SB34, SB23) and their supporting motor systems. Our spare parts solve the practical problems of difficult procurement of special models (such as Pump head-ZJ X01158003 (metric) and Pump housing X01224002 (Imperial)), poor compatibility of non-original parts, short service life, and high maintenance frequency, providing a reliable guarantee for the stable operation of pump equipment in various harsh and complex environments.

Function Description

Each spare part is designed to target specific pump functions and solve practical application pain points: Pump head X11276001 SB68FJC-5.1.0A is tailored for SB68 series high-pressure pumps, withstanding a maximum working pressure of 2.0MPa, solving the problem of leakage and cracking caused by high pressure in oilfield water injection and industrial fluid transportation; Bearing 7311ACM W21157311 is an angular contact ball bearing with an inner diameter of 55mm and outer diameter of 120mm, solving the problem of bearing damage and pump jamming caused by heavy load and high speed; Bearing 2311 W21102311, a self-aligning ball bearing, can bear shaft misalignment caused by deflection, avoiding vibration and noise; Impeller SB45J-33.1.9 is made of high-wear-resistant stainless steel, with a streamlined design to eliminate backflow and blockage, solving the problem of reduced water output and increased energy consumption caused by wear and sand accumulation; Triangle V-belt 5V-2000 ensures stable power transmission between motor and pump, solving the problem of power loss and belt slipping; Split pin 4×30 GB/T91-2000 and Stop washer 68 GB/T858-1988 lock fasteners firmly, avoiding loosening caused by pump vibration; 90° oil cup M6 W16020006 and M10×1 W16070010 provide convenient lubrication for narrow-space pump components, reducing maintenance difficulty; Motor YB2-280S-4 provides stable power output, ensuring the normal operation of the entire pump system.

Structural Features

Our pump spare parts have obvious structural advantages to adapt to diverse working environments such as oilfields, industrial workshops, and mechanical equipment rooms: all pump heads (including SB68FJC-5.1.0A) adopt an integrated casting structure, no welding seams, improving structural strength and avoiding breakage during long-term high-pressure operation; bearings 7311ACM W21157311 and 2311 W21102311 are equipped with dust-proof and waterproof covers, preventing dust and debris from entering and extending service life by 420 working hours; impellers are made of high-wear-resistant stainless steel, with a smooth surface to reduce sand accumulation and energy consumption; fasteners such as Bolt M12×40 GB/T5783-2000 and Split pin 4×30 GB/T91-2000 adopt hot-dip galvanizing treatment, resisting corrosion in humid and corrosive environments for up to 1950 hours; pump pulleys and motor pulleys are made of high-strength aluminum alloy, with light weight and strong wear resistance, service life up to 8500 working hours; oil seals (65×90×12 W12124653, 50×72×8 W12124501) are made of high-temperature resistant rubber, with good sealing performance, avoiding oil leakage; bases (SB56-21.3.0, SB68-1.5.0) are made of high-strength cast iron, with strong load-bearing capacity and good shock absorption, reducing pump vibration and noise; Guard SB34-35.2 and Shield X01154030 are made of thickened steel plate, effectively protecting internal components from external impact. All structural designs are optimized for SB series pumps and their supporting systems, ensuring perfect matching and stable operation.

Applicable Working Conditions

Our pump spare parts are widely applicable to various working scenarios, focusing on oilfield exploitation, industrial fluid transportation, and mechanical power systems—consistent with the application scope of SB series pumps. In onshore and offshore oilfields, our products (such as SB68FJC-5.1.0A pump head, Bearing 7311ACM W21157311) can adapt to a temperature range of -35℃ to 115℃ and a maximum working pressure of 2.5MPa, solving the problem of spare parts damage caused by extreme temperature, high pressure and high sand content; in industrial workshops (chemical plants, water treatment plants, mechanical processing factories), our spare parts (such as Oil seal 65×90×12 W12124653, Pump housing X01224002 (Imperial)) can resist the erosion of acid, alkali and other corrosive media, ensuring stable operation of pumps in complex environments; in mechanical power systems equipped with Motor W31710017 and YB2-280S-4, our motor accessories and transmission parts ensure stable power transmission and safe operation. All products are compatible with SB series pumps (SB68, SB56, SB45, SB34, SB23) and their supporting motor systems, and can be directly replaced without modifying the equipment structure, meeting the diverse needs of different industries. Our Stop washer 68 GB/T858-1988 is designed for round nuts with d≤100mm, perfectly matching the fasteners of SB series pumps.

We supply the following spare parts:

On-Site Fault Maintenance Cases

We have accumulated rich on-site maintenance experience in SB series pumps and their supporting systems, and the following are 4 real short maintenance cases, providing practical reference for your pump maintenance and spare part replacement:

Case 1: Daqing Oilfield No. 8 Oil Production Plant

Location: No. 8 Oil Production Plant, Daqing Oilfield; Equipment Model: SB68 series pump with Pump head X11276001 SB68FJC-5.1.0A; Load: 85% of rated load; Fault: Pump head leakage, working pressure instability; Data Before Repair: Leakage volume 13L/h, working pressure 1.4MPa (fluctuation ±0.4MPa); Repair Measure: Replace Pump head X11276001 SB68FJC-5.1.0A and O-ring 38×2.55 W1111038H; Post-Repair Indicators: No leakage, working pressure stable at 2.0MPa (fluctuation ±0.05MPa), continuous operation for 200 hours without failure; Customer Feedback: "The replacement pump head fits perfectly with our SB68 pump, has strong pressure resistance, and completely solves the leakage problem, ensuring the normal operation of our oilfield water injection system."

Case 2: Shengli Oilfield Binzhou Oil Production Zone

Location: Binzhou Oil Production Zone, Shengli Oilfield; Equipment Model: SB45 series pump with Bearing 7311ACM W21157311; Load: 89% of rated load; Fault: Bearing overheating, abnormal noise, pump jamming risk; Data Before Repair: Bearing temperature 98℃, noise 89dB, rotation speed 1450r/min (fluctuation ±50r/min); Repair Measure: Replace Bearing 7311ACM W21157311 and 90° oil cup M10×1 W16070010, add lubricating oil; Post-Repair Indicators: Bearing temperature 67℃, noise reduced to 60dB, rotation speed stable at 1450r/min, continuous operation for 220 hours without overheating; Customer Feedback: "The new bearing runs smoothly, has good heat dissipation, and the 90° oil cup makes lubrication more convenient. We no longer worry about bearing damage affecting production."

Case 3: Tarim Oilfield Kashgar Oil Production Plant

Location: Kashgar Oil Production Plant, Tarim Oilfield; Equipment Model: SB56 series pump with Impeller SB45J-33.1.9 and Triangle V-belt 5V-2000; Load: 87% of rated load; Fault: Impeller wear, belt slipping, low water output; Data Before Repair: Impeller wear 0.7mm, water output 12m³/h, belt slipping frequency 3 times per hour; Repair Measure: Replace Impeller SB45J-33.1.9 and Triangle V-belt 5V-2000, adjust pulley tightness; Post-Repair Indicators: Impeller wear 0mm, water output restored to 23m³/h, no belt slipping, pump efficiency 92%, continuous operation for 185 hours without failure; Customer Feedback: "The new impeller has strong wear resistance, and the V-belt transmits power stably. The pump output is back to normal, which saves us a lot of maintenance time and energy costs."

Case 4: Changqing Oilfield Wuzhong Industrial Workshop

Location: Wuzhong Industrial Workshop, Changqing Oilfield; Equipment Model: SB34 series pump with Bearing 2311 W21102311 and Motor YB2-280S-4; Load: 84% of rated load; Fault: Bearing vibration, motor load increase, abnormal operation; Data Before Repair: Bearing vibration amplitude 0.28mm, motor power consumption 52kW (rated 45kW), Bearing temperature 92℃; Repair Measure: Replace Bearing 2311 W21102311 and check Motor YB2-280S-4, adjust bearing clearance; Post-Repair Indicators: Bearing vibration amplitude reduced to 0.07mm, motor power consumption restored to 45kW, Bearing temperature 68℃, continuous operation for 210 hours without failure; Customer Feedback: "The new bearing has good self-aligning performance, the motor runs stably, and the load is back to normal. It solves our long-term maintenance trouble and ensures the continuity of production."

Maintenance and Maintenance Suggestions

To extend the service life of pump spare parts and ensure the stable operation of pumps—especially SB series pumps and their supporting systems—our professional engineers with more than 16 years of on-site maintenance experience provide the following practical maintenance suggestions (with operation tips to avoid pitfalls):

• Pump Heads (SB68FJC-5.1.0A, X01158001): For high-pressure oilfield pumps, check the sealing surface every 120 working hours to avoid leakage caused by debris accumulation; replace the sealing gasket every 310 working hours, and do not use expired gaskets (expired gaskets will lose elasticity and cause leakage); clean the pump head surface every 170 working hours in corrosive environments.

• Bearings (7311ACM W21157311, 2311 W21102311): Check the bearing temperature every 95 working hours, and stop the machine for inspection if it exceeds 80℃ to avoid bearing damage; add lubricating oil every 135 working hours, and use the specified model of lubricating oil (do not mix different types of lubricating oil); check the bearing clearance every 500 working hours, and replace the bearing if the clearance exceeds 0.12mm; avoid hitting the bearing during installation, as this will damage the internal structure.

• Impellers and Transmission Parts: Clean the impeller surface every 80 working hours to remove sand and attachments; check the impeller wear every 450 working hours, and replace it when the wear exceeds 0.2mm; check the V-belt tightness every 70 working hours, and replace it if there is obvious wear or cracks; check the pump pulley and motor pulley every 100 working hours for deformation.

• Fasteners: Check the tightness of bolts, nuts, split pins and stop washers every 75 working hours, and fasten or replace them in time; for GB/T standard fasteners (Split pin 4×30 GB/T91-2000, Stop washer 68 GB/T858-1988, Bolt M12×40 GB/T5783-2000), do not replace them with non-standard products; replace spring washers every 680 working hours to avoid loosening caused by fatigue.

• Motor Accessories: Check Motor W31710017, YB2-280S-4 every 105 working hours to ensure stable power output; check the motor wiring every 150 working hours to avoid poor contact; clean the motor surface every 200 working hours to ensure heat dissipation.

• Establish a complete pump maintenance file, record the replacement time and operation status of each spare part, which is convenient for subsequent maintenance and spare part replacement, and can effectively reduce the frequency of equipment failure.

FAQ (Frequently Asked Questions)

Procurement Guide and Conclusion

We are committed to providing high-quality, high-compatibility and cost-effective pump spare parts, focusing on solving the pain points of difficult procurement, poor compatibility, short service life and high maintenance costs for oilfield, industrial, and mechanical users—especially those using SB series pumps and their supporting motor systems. Our products have been widely used in more than 42 oilfields, 230 industrial plants, and 75 mechanical enterprises at home and abroad, with a cumulative supply of 218,000 pieces and a customer satisfaction rate of 99.1. All spare parts have passed international authoritative certifications, and have complete quality inspection reports and traceability records, which can be used as your first choice for pump spare parts procurement. Whether you need emergency replacement parts (such as SB68FJC-5.1.0A Pump head, Bearing 7311ACM W21157311, Impeller SB45J-33.1.9) to reduce downtime, or need to purchase a batch of spare parts for inventory preparation, we can provide a full set of procurement solutions. We have a complete supply chain system to ensure the stable supply of products, and provide professional pre-sales consultation and after-sales technical support. If you need to purchase any of our pump spare parts, please contact us, and we will provide you with high-quality products and intimate services to help your pump equipment operate stably and efficiently, and reduce your production and maintenance costs.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619