Suzhou Volsun Electronics Technology Co., Ltd.
| Quantity: | |
|---|---|
VS-RD
Volsun
The Brush Shaft Grounding Ring is a precision-engineered solution designed to neutralize destructive shaft currents in modern electric motors, particularly those driven by PWM-based variable frequency drives (VFDs). By establishing a low-impedance path to ground, this device eliminates capacitive coupling-induced voltages that cause bearing electrolysis and electro-erosion wear. The ring incorporates a proprietary arrangement of multi-filament conductive fibers, precision-aligned to maintain continuous contact with rotating shafts at speeds up to 20,000 RPM. Encased in an anodized aluminum alloy housing with IP66-rated sealing, it operates flawlessly in contaminated environments while resisting oxidation and arc flash. Compatible with IEC and NEMA motor frames, this grounding ring is a retrofit-ready upgrade that slashes maintenance costs and unplanned downtime across industries reliant on motor-driven systems.
1. Patented Fiber Matrix: Utilizes gold-plated carbon nanotube (CNT) hybrid fibers for ultra-low contact resistance (<5 mΩ) and self-lubricating properties, ensuring stable performance over 100 million shaft rotations.
2. Active Current Diversion: Channels high-frequency common-mode currents (up to 50 A peak) away from bearings, reducing raceway pitting and lubricant degradation by 90%.
3. Universal Adaptability: Adjustable tension springs and modular shim kits enable installation on shafts from 10mm to 300mm diameter, including tapered or keyed shafts.
4. Ruggedized Design: Features MIL-STD-810G certified shock/vibration resistance and optional Hastelloy® housing for offshore or chemical processing applications.
5. Smart Monitoring Ready: Integrates with IoT platforms via optional embedded RFID tags or wireless current sensors for real-time bearing health analytics.
6. Energy Efficiency: Reduces motor cogging torque losses by 3–5% compared to traditional shaft grounding methods, contributing to ESG compliance.
7. Zero Downtime Installation: Pre-greased mounting clamps and laser-aligned jigs allow field retrofits in under 15 minutes without motor disassembly.
1. Industrial Automation: Protects servo motors and CNC spindle bearings in robotics and precision machining centers from VFD-induced fluting.
2. Water Treatment Plants: Extends bearing life in high-speed centrifugal pumps and aerator motors subjected to variable loads and moisture.
3. Pharmaceutical Manufacturing: Complies with FDA GMP standards by preventing metallic particle generation in mixer and tablet press drives.
4. Mining & Heavy Machinery: Shields dragline excavator motors and ball mill drives from bearing failures caused by harmonic-rich power quality.
5. Aviation Ground Support: Ensures reliable operation of aircraft fuel hydrant pump motors and baggage conveyor systems in all weather conditions.
6. Food & Beverage Processing: Stainless steel variants meet USDA hygiene requirements for motors in bottling lines and refrigeration units.
7. Energy Storage Systems: Mitigates bearing currents in flywheel energy storage units and grid-synchronizing diesel generators.
| Item | Typical Data |
| Static resistance | ＜1Ω |
| Dynamic resistance | ≤10Ω |
| Fiber pull-off force | ≥100·30s |
| Salt spray test | No fiber damage |
| Durability test | / |
| High temperature test | / |
| Low temperature test | / |
O.D (mm) | id (mm) | Height (mm) | Applicable shaft diameter (mm) |
30 | 15 | 7 | 10 |
38 | 19 | 7 | 13 |
38 | 22 | 7 | 18 |
40 | 24 | 7 | 18 |
47 | 31 | 7 | 25 |
49 | 32 | 7 | 26 |
50 | 30 | 7 | 24 |
50 | 31 | 7 | 25 |
53 | 30 | 7 | 25 |
53 | 36 | 7 | 30 |
55 | 39 | 7 | 35 |
57 | 36 | 7 | 30 |
60 | 44 | 7 | 38 |
62 | 41 | 7 | 35 |
70 | 46 | 7 | 40 |
72 | 49 | 7 | 43 |
75 | 58 | 7 | 52 |
78 | 58 | 7 | 52 |
Q1:What is the main function of the VS-RD Series Shaft Grounding Ring?
The primary function of the VS-RD Series Shaft Grounding Ring is to protect motors and associated equipment from electrical corrosion caused by shaft currents. It safely diverts these currents to the ground, preventing damage to motor bearings and ensuring the smooth operation of high-speed rotating machinery.
Q2:Can the VS-RD Series be used on different types of motors and equipment?
Yes, the VS-RD Series is designed to be highly adaptable. It can be installed on various rotating equipment, including motors, generators, and gearboxes, and is customizable to fit different shaft diameters, making it a versatile solution for many applications.
Q3:How does the VS-RD Series improve motor performance?
By preventing electrical corrosion, reducing static electricity buildup, and minimizing contact resistance, the VS-RD Series improves the overall efficiency and reliability of motors, particularly in high-speed applications, reducing the risk of bearing wear, noise, and motor failure.
At VOLSUN, we bring over 18 years of experience in creating high-performance solutions that protect and enhance the longevity of critical machinery and electrical components. Our VS-RD Series Carbon Fiber Conductive Brush Shaft Grounding Ring is a testament to our dedication to quality, designed to prevent electrical corrosion in motors and associated equipment. With a focus on durability and reliability, our products undergo rigorous testing to meet the highest industry standards, ensuring superior performance even in extreme conditions. We offer customizable options to suit a wide range of equipment, backed by excellent customer service and global support. By choosing VOLSUN, you are partnering with a trusted leader in the industry, committed to delivering innovative, environmentally-friendly solutions that improve operational safety and efficiency.
The Brush Shaft Grounding Ring is a precision-engineered solution designed to neutralize destructive shaft currents in modern electric motors, particularly those driven by PWM-based variable frequency drives (VFDs). By establishing a low-impedance path to ground, this device eliminates capacitive coupling-induced voltages that cause bearing electrolysis and electro-erosion wear. The ring incorporates a proprietary arrangement of multi-filament conductive fibers, precision-aligned to maintain continuous contact with rotating shafts at speeds up to 20,000 RPM. Encased in an anodized aluminum alloy housing with IP66-rated sealing, it operates flawlessly in contaminated environments while resisting oxidation and arc flash. Compatible with IEC and NEMA motor frames, this grounding ring is a retrofit-ready upgrade that slashes maintenance costs and unplanned downtime across industries reliant on motor-driven systems.
1. Patented Fiber Matrix: Utilizes gold-plated carbon nanotube (CNT) hybrid fibers for ultra-low contact resistance (<5 mΩ) and self-lubricating properties, ensuring stable performance over 100 million shaft rotations.
2. Active Current Diversion: Channels high-frequency common-mode currents (up to 50 A peak) away from bearings, reducing raceway pitting and lubricant degradation by 90%.
3. Universal Adaptability: Adjustable tension springs and modular shim kits enable installation on shafts from 10mm to 300mm diameter, including tapered or keyed shafts.
4. Ruggedized Design: Features MIL-STD-810G certified shock/vibration resistance and optional Hastelloy® housing for offshore or chemical processing applications.
5. Smart Monitoring Ready: Integrates with IoT platforms via optional embedded RFID tags or wireless current sensors for real-time bearing health analytics.
6. Energy Efficiency: Reduces motor cogging torque losses by 3–5% compared to traditional shaft grounding methods, contributing to ESG compliance.
7. Zero Downtime Installation: Pre-greased mounting clamps and laser-aligned jigs allow field retrofits in under 15 minutes without motor disassembly.
1. Industrial Automation: Protects servo motors and CNC spindle bearings in robotics and precision machining centers from VFD-induced fluting.
2. Water Treatment Plants: Extends bearing life in high-speed centrifugal pumps and aerator motors subjected to variable loads and moisture.
3. Pharmaceutical Manufacturing: Complies with FDA GMP standards by preventing metallic particle generation in mixer and tablet press drives.
4. Mining & Heavy Machinery: Shields dragline excavator motors and ball mill drives from bearing failures caused by harmonic-rich power quality.
5. Aviation Ground Support: Ensures reliable operation of aircraft fuel hydrant pump motors and baggage conveyor systems in all weather conditions.
6. Food & Beverage Processing: Stainless steel variants meet USDA hygiene requirements for motors in bottling lines and refrigeration units.
7. Energy Storage Systems: Mitigates bearing currents in flywheel energy storage units and grid-synchronizing diesel generators.
| Item | Typical Data |
| Static resistance | ＜1Ω |
| Dynamic resistance | ≤10Ω |
| Fiber pull-off force | ≥100·30s |
| Salt spray test | No fiber damage |
| Durability test | / |
| High temperature test | / |
| Low temperature test | / |
O.D (mm) | id (mm) | Height (mm) | Applicable shaft diameter (mm) |
30 | 15 | 7 | 10 |
38 | 19 | 7 | 13 |
38 | 22 | 7 | 18 |
40 | 24 | 7 | 18 |
47 | 31 | 7 | 25 |
49 | 32 | 7 | 26 |
50 | 30 | 7 | 24 |
50 | 31 | 7 | 25 |
53 | 30 | 7 | 25 |
53 | 36 | 7 | 30 |
55 | 39 | 7 | 35 |
57 | 36 | 7 | 30 |
60 | 44 | 7 | 38 |
62 | 41 | 7 | 35 |
70 | 46 | 7 | 40 |
72 | 49 | 7 | 43 |
75 | 58 | 7 | 52 |
78 | 58 | 7 | 52 |
Q1:What is the main function of the VS-RD Series Shaft Grounding Ring?
The primary function of the VS-RD Series Shaft Grounding Ring is to protect motors and associated equipment from electrical corrosion caused by shaft currents. It safely diverts these currents to the ground, preventing damage to motor bearings and ensuring the smooth operation of high-speed rotating machinery.
Q2:Can the VS-RD Series be used on different types of motors and equipment?
Yes, the VS-RD Series is designed to be highly adaptable. It can be installed on various rotating equipment, including motors, generators, and gearboxes, and is customizable to fit different shaft diameters, making it a versatile solution for many applications.
Q3:How does the VS-RD Series improve motor performance?
By preventing electrical corrosion, reducing static electricity buildup, and minimizing contact resistance, the VS-RD Series improves the overall efficiency and reliability of motors, particularly in high-speed applications, reducing the risk of bearing wear, noise, and motor failure.
At VOLSUN, we bring over 18 years of experience in creating high-performance solutions that protect and enhance the longevity of critical machinery and electrical components. Our VS-RD Series Carbon Fiber Conductive Brush Shaft Grounding Ring is a testament to our dedication to quality, designed to prevent electrical corrosion in motors and associated equipment. With a focus on durability and reliability, our products undergo rigorous testing to meet the highest industry standards, ensuring superior performance even in extreme conditions. We offer customizable options to suit a wide range of equipment, backed by excellent customer service and global support. By choosing VOLSUN, you are partnering with a trusted leader in the industry, committed to delivering innovative, environmentally-friendly solutions that improve operational safety and efficiency.
