Name

WM Berg

Legal name

WM Berg Inc.

Website

https://wmberg.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Product category

Precision Mechanical Components

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Other General Purpose Machinery Manufacturing (3339), Turned Product and Screw, Nut, and Bolt Manufacturing (33272)

SIC

Ball & Roller Bearings (3562), Bolts, Nuts, Screws, Rivets & Washers (3452), Wholesale-Industrial Machinery & Equipment (5084), Screw Machine Products (3451)

akta.pro primary industry

Linear Motion & Mechanical Power Transmission (Ball/roller screws, linear guides, bearings, couplings) (IMAHAGAM)

Keywords

• Precision mechanical components
• Power transmission parts
• Industrial gears and bearings
• Motion control components
• Custom precision parts

Headquarters

HQ city

Cudahy

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Standard Precision Components Sales: Sale of standard precision mechanical components including gears, bearings, belts, chains, couplings, sprockets, pulleys, and shafting from a catalog of over 80,000 products. Both off-the-shelf and modified standard parts available.
2. Custom Precision Parts Manufacturing: Custom manufacturing of precision components including custom gears, belts, chains, couplings, shafting, gearboxes, and sprockets & pulleys based on customer specifications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

WM Berg manufactures and distributes more than 80,000 precision mechanical components for industrial machinery in motion, including gears, bearings, belts, chains, couplings, sprockets, pulleys, and shafting. The company also provides custom precision parts manufacturing services—custom gears, belts, chains, couplings, shafting, gearboxes, and sprockets/pulleys—supported by an in-house R&D lab for rapid prototyping. Customers in aerospace, medical, motion control, and robotics industries purchase through an authorized distributor network or via direct quote requests.

Product overview

WM Berg is a precision mechanical component manufacturer offering a comprehensive portfolio of over 80,000 small mechanical components for industrial machinery. The product line includes multiple interconnected product families: Precision Assemblies (Cams, Geneva Mechanisms, Linear Ball/Roller Slides, Gearboxes, Ratchets & Pawls); Belts & Chains product family (Flex-E-Pitch, Flex-E-Gear, Flex-E-Grip, Flex-E-Belt, Max-M-Drive, Min-E-Pitch, Pow-R-Vee, Row-L-ER, O-Ring products, Aircraft & Fiber Cables); Precision Sprockets (3D, Belt, Chain, Double, Roller Chain types); Precision Bearings; Precision Gears (Anti-Backlash, Racks, Helical, Internal, Spur, Worms, Worm Gears); Pulleys (Timing, V-Belt, Grooved, Friction Drive); Shafting (Shafts, Hubs, Woodruff Keys); Couplings (multiple types); and Fasteners & Hardware. The company complements its standard product catalog with custom precision parts manufacturing services, providing engineering support for modifications from simple gear changes to intricate assemblies. All products are designed as precision mechanical power transmission and motion control components serving aerospace, medical, motion control, and robotics industries.

Differentiator

Problem solved

Functional benefit

Brands

• Berg: Brand name used interchangeably with WM Berg for the company's precision mechanical components product line.

Products and services

• Precision Mechanical Assemblies Mechanical assemblies including cams, Geneva mechanisms, linear ball slides, linear roller slides, gearboxes, and ratchet and pawl mechanisms used by industrial OEMs to transform rotary motion into linear motion and control mechanical movement.
• Belts and Chains Polyurethane timing belts and chains with stainless steel or aramid fiber cores for industrial motion control applications, including proprietary Flex-E-Pitch, Pow-R-Vee, Flex-E-Grip, Flex-E-Belt, Flex-E-Gear, Max-M-Drive, Row-L-ER, Min-E-Pitch, O-Ring belts, and aircraft and fiber cables.
• Precision Sprockets Precision sprockets for transmitting rotary motion, including 3D sprockets, belt sprockets, chain sprockets, double sprockets, and roller chain sprockets in stainless steel, plastic, and anodized aluminum.
• Precision Bearings Precision bearings including ball bearings, journal bearings, linear bearings, needle bearings, oil-less bearings, roller thrust bearings, and spherical bearings for industrial machinery motion applications.
• Precision Gears Precision gears including anti-backlash gears, gear racks, helical gears, internal gears, spur gears, worms, and worm gears used in industrial power transmission.
• Pulleys Precision pulleys including friction drive rollers, grooved pulleys, timing pulleys, timing pulley bar stock, and V-belt pulleys for power transmission.
• Shafting Shaft components including hubs, shafts, shaft accessories, and Woodruff keys for industrial machinery assemblies.
• Couplings Shaft couplings including Absorbathane, beam, bellows, Neo-Flex, Oldham, polyurethane, sleeve, spider, universal joint, and universal lateral couplings for connecting shafts and transmitting torque.
• Fasteners and Hardware Industrial hardware including dials, handles, industrial fasteners, pins, screws, springs, and vibration damping components.
• Custom Precision Parts Custom manufacturing services for gears, belts, chains, couplings, shafting, gearboxes, and sprockets/pulleys, supported by an in-house R&D lab for rapid prototyping and engineering assistance for unique industrial applications.

Quantifiable outcome

• Extensive catalog of 80,000+ precision mechanical components

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

One partnership is on record.

• Regal Rexnordparent_companyOthersWM Berg is a division of Regal Rexnord, a major industrial motion control company. This corporate relationship provides WM Berg with the backing and resources of a larger parent company while maintaining its brand identity as a precision components manufacturer.

Scale indicators1 record

Direct peers

• SDP/SI (Stock Drive Products / Sterling Instrument): Catalog-based manufacturer of small precision mechanical components including gears, belts, chains, couplings, and bearings. Closely overlaps WM Berg on product line, customer profile, and configurable/standard catalog model.
• Misumi USA: Configurable, catalog-driven supplier of mechanical components (gears, linear motion, bearings, shafts) with a digital, transparent-pricing model. Targets the same small-precision-buyer niche as WM Berg with a more modern e-commerce experience.
• Boston Gear: Manufacturer of power transmission and motion control products including gears, bearings, gearboxes, and couplings. Overlaps heavily with WM Berg's core product families and industrial customer base.
• KHK (Kohara Gear Industry): Japanese catalog manufacturer of standard and custom precision gears, racks, and related power transmission components. Direct competitor in catalog gear sales with similar engineering-customer focus.
• Ondrives (formerly Ondrives.US): Manufacturer of small precision gears, gearboxes, and custom motion control components serving aerospace, robotics, and instrumentation customers. Closely comparable in scale, application, and product breadth.
• Bison Gear & Engineering: Manufacturer of small precision gearboxes, gearmotors, and related motion control components serving industrial, medical, and aerospace OEMs. Comparable in scale and customer profile to WM Berg.
• Rino Mechanical Components: Manufacturer of precision gears, racks, splines, and lead screws with custom machining capabilities serving aerospace, medical, and motion control customers. Closely matches WM Berg in product mix and end-market orientation.

Broad incumbents

• Martin Sprocket & Gear: Long-established US manufacturer and distributor of power transmission and material handling products including gears, sprockets, bearings, and couplings. Larger and broader than WM Berg but overlaps on many of the same product lines.
• McMaster-Carr: Massive US industrial supplier of mechanical hardware, fasteners, bearings, gears, and power transmission components. Competes with WM Berg broadly across catalog orders but with a vastly wider assortment and digital buying model.
• MSC Industrial Direct: Large US industrial distributor offering bearings, gears, couplings, motors, and motion control products. Overlaps with WM Berg at the buyer level, especially for MRO and standard catalog purchases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/regal-rexnord

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WM Berg