Brush Holders & Spring Assemblies: Products
Custom Engineered for High-Performance and Maximum Durability
Helwig Carbon designs & manufactures a wide array of brush holders and spring assemblies, each engineered with the customer’s brush type and application top of mind.
Advantages of Helwig’s Brush Holders and Spring Assemblies:
- Advanced designs for longer brush life
- Fast turnaround on stock and custom-made holders and spring assemblies
- Thousands of quotable holders and components
- Unmatched technical expertise and superior customer service
Contact our team of experts or request a quote to find the best brush holder or spring assembly for your application’s needs.
- Constant Force Springs provide reliable, consistent force for better brush performance and life in motors, generators, and other equipment.
- Helwig’s Constant Force Springs are replaceable, unlike other springs that may require replacing the entire holder assembly.
- Fast turnaround for reduced machine downtime.
Helwig Quick Disconnects (HQDs)
HQDs are a faster, easier, safer way to change brushes with no screws to remove, lose, or replace. HQDs are very low resistance, high capacity, safe, and secure connections with a tight, positive locking action.
Wear Indicator
Featuring a red caution strip that informs you when the brush is worn out and should be replaced, the Wear Indicator is an optional feature for Helwig Brush Holders and Spring Assemblies. It clearly shows how much wear is left while the machine is still running.
Teflon™ Coating for Corrosive Environments Like Steel Pickling Line
Explore Our Brush Holders & Spring Assemblies
Custom Engineered for High-Performance and Maximum Durability
Industrial Holders
- Solid construction provides better performance, longer brush life, and lower maintenance costs than OEM holders
- Over 40 standard models in stock for GE, Reliance, Westinghouse, etc.
- Easy to install
- Constant Force Springs for increased brush performance
- Custom engineered designs for any applications
Turbine Style Holders
- Direct retrofit and custom designs for upgrades are available
- Adjustable mounting bolts to increase installation flexibility
- Constant force holder design with Wear Indicators for easy maintenance
- Replaceable spring clips provide less costly downtime
Adjustable Slip Ring Holders
- Fully adjustable slip ring holder designed to fit a wide array of applications
- Flexible ring diameters, post diameters, and positions
- Custom designed holders easily retrofit existing equipment and exceed performance of the original holder
- Custom designs for wind power holders, wound rotor induction motor, and synchronous motor holders
- Standard holders in stock for GE and Westinghouse power generation
- Replaces single holder and bank of two designs
- Constant force spring design
- Offered in 6 standard box sizes
Traction Holders
- Enhanced replacement for 752 drilling & traction holders
- Heavy-duty gunmetal cast for extremely rough mining & traction applications
- Internally reinforced insulator studs
- Reduces vibration
- Minimizes stud breakage
- Durable clock style spring
- Includes a stud to hold spring finger for fast and easy brush changes
- Compatible with Helwig Carbon brush grades: H38, H83, H84, H60
Explore Additional Brush Holders & Spring Assemblies
Cartridge Style Holders
- Made from a wide variety of cutting-edge high impact and high dielectric UL approved thermoset and thermoplastic materials
- Standard holders for brush sizes ranging from 1/16″ x 1/6″ up to 1/2″ x 1/2″ and 3/8″ x 3/4″
- Additional special imperial and metric sizes also available
- Standard springs and constant force spring cartridges for significantly longer brush life in the same amount of space
Brush Ring/Card Assemblies
- Brush Ring Assemblies are ideally suited for applications where economic or design considerations warrant an internal assembly
- Each part is fully assembled complete with molded plastic or stamped phenolic rings/cards, brass or aluminum brush guides, springs, lead attachments, and copper connectors
- Internal Brush Ring Assemblies include brush cards, rocker arm assemblies, and brush plates in a wide variety of designs using UL, CSA, ETL, and CE recognized and approved materials
- Brush Rings are available in 2-Pole or 4-Pole designs
Multiple Box Holders
- Commonly used on large DC motors
- GE, Westinghouse, Siemens, ABB, and other mill motors
- Multiple box holders are engineered with adjustable and replaceable brush boxes
- Designed with longer brush boxes for increased brush life, lowering maintenance costs
- Spring assemblies allow for safer and quicker brush changes
Finger Style Holders
- Recommended for rough, high-vibration, or excessive run-out applications
- Designed to retrofit existing holders and spring combinations
- Improved brass holder to withstand extreme environments
- Engineered for individual holder replacements when needed
- Able to use your existing brush – same length brush box
Wind Retrofit Holders
- Robust design exceeds OEM holder performance
- Engineered for maximum reliability, easier maintenance, and fewer up-tower repairs
- Replaceable and adjustable brush boxes
- Simplified wiring harness
- Teflon spacers to protect ring phases
- HQDs for faster brush changes
- ISO 9001 Certified
Brush Holder Refurbishment
Enjoy tremendous cost savings with superior-quality, custom-engineered refurbished brush holders.
Rebuild Benefits
- Rebuilt by experts
- Quick turnaround
- Fraction of the cost compared to a new holder
- Regain holder performance
Rebuild Process
Rebuilds include the following steps (certain elements may differ based on application needs):
- Disassemble, clean, and tumble all metal parts
- Check and adjust the brush box for proper fit and brush clearance
- Silver-plate brush holder and assembly (if applicable)
- Replace the backplates, springs, and terminal screws
- Swap the retaining plate with a stainless steel retaining plate
- Reassemble the holder
- Deliver a rebuilt holder that performs like NEW!
Spring Repair & Replacement
Helwig offers a wide range of replacement spring assemblies for constant force brush holders, including those used in electric motors, generators, and turbine ring magazines.
Our constant force springs are engineered to meet or exceed the performance of the original parts. We carry over 40 popular styles in stock, and can also create custom constant force spring assemblies to meet your application requirements.
We make it easy to replace the springs on your existing clips. Just send in the old clips and we will put on new rollers/springs. Make sure you include an old brush or part number, the brush size, style, and RPM to determine the spring force.
Not sure which brush holder is right for you? Contact us.
Correct Spring Pressure for Better Life & Performance
Use the Helwig DigiScale to measure spring force
Don’t See What You Need? Request a Quote for a Custom Engineered Solution
Explore Brush Holder Resources
Learn how Helwig brush holders perform across a wide range of industries on our Applications page and access expert guidance on our Research and Literature page. Our research has driven industry-wide improvements, including optimizing spring pressure to extend brush life by 50% or more and significantly reducing the need for resurfacing brush contact surfaces.