Carbon Brush Holder & Brush Holder Assembly | Helwig Carbon

Our Brush Holder Advantages

  • Enhanced design allows for longer brushes increasing brush life and decreasing downtime
  • Improved brass holder for durability in harsh environments
  • Holder material options: casted brass, extruded brass, TeflonTM coated

Constant Force Springs

  • Our pioneering research in the 1980’s set the industry standard for spring pressure, from 2 psi to 4-6psi.
  • Proper spring pressure ensures better brush contact with the commutator
  • Increased spring force reduces electrical brush wear thus improves brush life and performance
  • Spring life expectancy is 3-5 years on most applications – replacing our springs is easy and safer than traditional springs!

Built-In Wear Indicator

  • Optional brush wear indicator is the industry’s most convenient way to monitor brush wear
  • Red “danger strip” informs you the brush is worn out and should be replaced.
  • Preventative maintenance’s dream accessory

Helwig Quick Disconnects (HQDs)

  • Impressively fast and easy way to change brushes
  • No screws to remove, lose or replace!
  • HQD’s lock together with a tight, positive locking action even under rough conditions
  • Increase maintenance safety
slip ring brush holder
slip ring brush holder90°
slip ring brush holder45°
a 50 years brush holder, electric motor brush holder, slip ring brush holder
backplate with cfs and slip ring brush holder, slip ring brush holder

Constant Force Spring Assembly

backplate with wear indicator slip and ring brush holder

Constant Force Spring Assembly with Wear Indicator

Made in USA logo, showing that our bearing protection kits are crafted in the USA, static grounding bearing

We offer a full-line of informational literature to help answer any questions you may have.

18 stock brush holders!

Next Day Shipping

Learn more about our pioneering constant force spring research from the 1980s

carbon brush holder assembly, electric motor brush holder

Custom Engineered Brush Holder Solutions

return on investment icon, carbon brush holder, slip ring brush holder development and roi icon

Increase performance, decrease downtime costs

*Maximize ROI*

save time, carbon brush holder assembly, silver-impregnated carbon graphite brushes

Rush Orders – turnaround time as quick as 48 hours

24 hour delivery, slip ring brush holder, slip ring brush holder

18 stock brush holders – Next Day Shipping!

Industrial Holders

  • Solid construction provides better performance, longer brush life and lower maintenance costs than the original holder
  • Over 40 standard models in stock for GE, Reliance, Westinghouse, etc.
  • Easy to install
  • Constant Force Springs for increased performance out of your brush
  • Custom engineered designs for any applications
one of our industrial holders, that use our slip ring brush holder

Turbine Style Holders

  • Direct retrofit and custom designs for upgrades are available
  • Adjustable mounting bolts to increase installation flexibility for proper height above rings
  • Constant force holder design with Wear Indicators to easy maintenance
  • Replaceable spring clips provide less costly downtime

Adjustable Slip-Ring Holders

  • Fully adjustable 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
One of our slip ring brush holders, one of our carbon brush holder assemblies, slip ring brushes

Wind 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
wind turbine brush holder and electric motor brush holders

BPK Holders

  • Durable shaft grounding kit holders, made for even the toughest conditions and tightest of spaces
  • Proprietary silver graphite grade travel smoothly inside the shaft grounding kit holder
  • More effective than the carbon-fiber ring
  • Typically reduces shaft voltage to less than 1V!
  • Easy to install – effective immediately
  • Sealed and Internal Mount options are available
  • Fits multiple shaft sizes
  • Stock kits available for same-day shipping
  • UL Approved – Patented Products
a render of our bpk-4, part of our brush holder assembly

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
a traction holder, electric motor brush holder

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

Rebuild Benefits

  • Rebuilt by experts

  • Quick turnaround

  • Fraction of the cost

    • compared to a new magazine
  • Regain holder performance

  • Prepare for scheduled maintenance



Rebuild Process

  1. Disassemble, clean and tumble all metal parts

  2. Check and adjust the brush box for proper fit and brush clearance

  3. Silver-plate brush holder and assembly

  4. Replace your backplates, springs and terminal screws

  5. Swap your retaining plate with a stainless steel retaining plate

  6. Reassemble your magazine

  7. Deliver a rebuilt holder that performs like NEW!


GE turbine BH Magazine before picture, electric motor brush holder, slip ring brush holder


GE turbine after picture, wind turbines brush holders, electric motor brush holder


our pre-restoration, slip ring brushes and brush holder


ge magazine after, slip ring brush holder
Celebrate With Us | 50 Years of Brush Holder Innovations | Helwig Blog featured image

—50 Years of Brush Holder Innovations—

Celebrate With Us President – Mark Umhoefer Our mission is to provide genuine overall value to our customers. Nothing demonstrates that commitment better than our decision 50 years ago to add high-quality brush holders to the line of products we manufacture. Today more customers than ever come to Helwig Carbon Products to be supplied with the best possible holder and brush solution – a custom engineered solution provided by a team with unparalleled levels of expertise and experience.

Helwig Carbon Products, Inc. is pleased to announce the acquisition and integration of the brush holder product line of J. Ream Manufacturing, Inc.

PRESS RELEASE: Helwig Carbon Products, Inc. acquires J Ream Manufacturing, Inc.

Acquisition & Integration of Brush Holder Product Line   Milwaukee, WI, February 28, 2020– Helwig Carbon Products, Inc. is pleased to announce the acquisition and integration of the brush holder product line of J. Ream Manufacturing, Inc.

image of streaking for blog post - 3 Reasons for Rapid Brush Wear

3 Reasons for Rapid Brush Wear

A common question from those handling DC motor maintenance is, “why are my carbon brushes wearing so quickly?”. Rapid brush wear is a problem that can be caused from a multitude of factors. There isn’t one easy answer to this question, as each situation can be different. A natural answer to this question that many will quickly jump to is the carbon brush grade. However, we’ve seen that, more often than not, the brush grade is not the culprit. Here are three of the most common reasons for rapid carbon brush wear:

Since 1970!

50 Years of Brush Holders

-Our commitment to engineering industry-leading brush holders has never been greater-

Shop Our Brush Holders

*Acquisition Alert*

We are pleased to announce, Helwig Carbon Products, Inc. has officially acquired and integrated the assets of J Ream Manufacturing, Inc