Karman Rubber

What Karman Rubber does

Karman Rubber Company is a family-owned manufacturer of custom molded rubber and rubber-to-metal bonded parts, headquartered in a 50,000-square-foot facility at 2331 Copley Road in Akron, Ohio. Founded in 1945 by John R. Mann and continuously operated by the Mann family for over 75 years, the company specializes in noise, shock, and vibration control products. Its flagship offering is the Vibro-Insulators® and Vibro-Isolators® product line — originally acquired from B.F. Goodrich in 1970 — spanning 17+ product families including cylindrical isolators, conical mounts, flex mounts, compression mounts, dock bumpers, low-frequency ring mounts, and tapered plugs, with load capacities ranging from one pound to one ton. Beyond the standard catalog, the company produces custom molded boots, elastomer-to-metal parts, and all-elastomer molded parts for industries including appliances, marine, transportation, medical devices, and industrial machinery.

The company operates a vertically integrated production model anchored by an in-house R&D laboratory for elastomer compound development, the K&H Mold & Machine Division for mold design and prototyping, and over 50 presses including state-of-the-art injection molding equipment. All manufacturing is conducted in the USA. Quality management is built on ISO-9002 certification and Statistical Process Control, with proprietary reformulations of Neoprene and Natural Rubber compounds developed to improve tensile strength and rubber-to-metal bonding. The company holds registered trademarks for Vibro-Insulator and Vibro-Isolator and has been granted patents on fail-safe mount designs with interlocking metal components.

Karman Rubber generates revenue exclusively through a quote-based pricing model with no publicly disclosed pricing, selling entirely through a distributor-led channel. Major US stocking distributors include McMaster-Carr, Fastenal, and Essentra Components, supplemented by regional stocking distributors in Australia (Vibration & Noise Control Pty. Ltd., Flexible Drive Agencies), Singapore (D'Spring, AIM All Industrial Manufacturing), and Canada (Groupe Maska). Customers request quotes directly through the company website or engage distributors. The business serves a diverse mix of industrial verticals — motors, blowers, fans, HVAC, compressors, gensets, welders, pumps, marine equipment, medical apparatus, and dock/warehouse facilities — with no disclosed customer concentration or financial data.

Name

Karman Rubber

Legal name

The Karman Rubber Company

Website

https://karman.com

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

11–50 employees

Short description

Karman Rubber Company is a family-owned Akron, Ohio manufacturer founded in 1945, producing custom molded rubber and rubber-to-metal bonded vibration isolation mounts and custom elastomer parts, sold through industrial distributors across North America, Australia, and Singapore.

Ownership category

akta.pro rank

Product category

Industrial Rubber Components & Vibration Isolation

NAICS

Rubber Product Manufacturing for Mechanical Use (326291)

SIC

Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Vibration Control & Anti-Vibration Products (Mounts, Bushings, Isolators) (IMANALAD)

akta.pro secondary industry

Molded & Extruded Industrial Rubber Parts (Custom Components) (IMANALAG)

Keywords

• Custom molded rubber
• Vibration isolation mounts
• Rubber-to-metal bonding
• Elastomer manufacturing
• Industrial rubber components

Headquarters

HQ city

Akron

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, Infrastructure, Marketing or Sales

Revenue model

1. Custom Molded Rubber Products: Manufacture and sale of custom molded elastomer and rubber-to-metal bonded parts for industrial customers. Products include vibration isolators, mounts, pads, and custom molded components sold through distributors and direct quotes.

Pricing tiers

Go-to-market motion1 record

Distribution channels8 records

Marketing channels2 records

Core offering

Karman Rubber manufactures custom molded rubber and rubber-to-metal bonded parts at its Akron, Ohio facility. The company's core product is the Vibro-Insulators and Vibro-Isolators line of noise, shock, and vibration control mounts and pads covering load capacities from one pound to one ton. Products are produced in multiple elastomers including Natural Rubber, Neoprene, Nitrile, Silicone, EPDM, SBR, Fluoroelastomers, and Butyl for diverse industrial applications.

Product overview

Karman Rubber Company offers a comprehensive portfolio of vibration isolation and custom molded rubber products. The core product line consists of the Vibro-Isolators® and Vibro-Insulators® family of noise, shock, and vibration control mounts, which includes seventeen distinct product categories: Vibro-Insulator Pads (single and double ribbed), Continuous Strip Mounts (K10/K12/K14 series), Low Frequency Ring Mounts (KR900 Series), Square Mounts, Cylindrical Isolators, KS Series 304 Stainless Steel Cylindrical Isolators, Conical Mounts, Bumpers and Feet, Center Bonded Mounts & Bushings, KA & KB Dock Bumpers, Torsional Mounts, K1100 Series Flex Mounts, Plate Mounts (K90/K91/K95), Compression Mounts Flange Style, K7000 Series All-Direction Flange Mounts, KG Non-Metallic Grommets, and KTP Tapered Plugs. Supporting this are custom molded products including Custom Molded Boots, Elastomer-to-Metal Parts, and Molded Elastomer Parts. The company operates an in-house K & H Mold & Machine Division for mold design and manufacturing, and an R&D laboratory for compound development. Products serve industrial applications including motors, pumps, compressors, HVAC, marine, medical devices, and more.

Differentiator

Problem solved

Functional benefit

Brands

• Vibro-Insulators®: A line of vibration isolation products including pads, mounts, and isolators designed for noise, shock, and vibration control. The trademarked product line was originally purchased from B.F. Goodrich in 1970.
• Vibro-Isolators®

Products and services

• Vibro-Insulator Pads

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered core.

• McMaster-Carr Supply Co.coreChannel Partner/ Reseller/ DistributorMajor US industrial distributor stocking Karman Rubber products. Products include shock isolators, vibration damping mounts, and bumpers. Available through McMaster-Carr catalog pages 1427, 1428, 1430, 1431, 1434, & 3846.
• Fastenal CompanycoreChannel Partner/ Reseller/ DistributorMajor US industrial distributor stocking Karman Rubber products. Products include vibration isolators and vibration mounts. Fastenal SKU's from 4131517 to 4131928.
• Essentra Components (Reid Supply)coreChannel Partner/ Reseller/ DistributorUS stocking distributor for Karman Rubber products. Specializes in vibration mounts and accessories, sandwich mounts, and neoprene compression mounts.
• Vibration & Noise Control Pty. Ltd.coreChannel Partner/ Reseller/ DistributorAustralian stocking distributor for Karman Rubber products. Located in Clayton South, VIC 3169, Australia.
• Flexible Drive Agencies Pty. Ltd.coreChannel Partner/ Reseller/ DistributorAustralian stocking distributor for Karman Rubber products. Located in Kensington, VIC 3031, Australia.
• D'Spring Pte. Ltd.coreChannel Partner/ Reseller/ DistributorSingapore and Asia stocking distributor for Karman Rubber products. Located in Singapore 349244.
• AIM All Industrial ManufacturingcoreChannel Partner/ Reseller/ DistributorSingapore and Asia stocking distributor for Karman Rubber products. Located at 161 Kallang Way #04-06 to #04-14 Kolam Ayer Industrial Estate, Singapore 349247.
• Groupe Maska Inc.coreChannel Partner/ Reseller/ DistributorCanadian stocking distributor for Karman Rubber products. Located at 550 Ave De Vaudreuil, St-Hyacinthe J2S 4H2, Canada.

Scale indicators4 records

Recent moves6 records

Expansion highlights3 records

Direct peers

• Lord Corporation: Lord Corporation (now part of Parker Hannifin) is a leading manufacturer of vibration isolation mounts, elastomeric bearings, and rubber-to-metal bonded products serving aerospace, defense, and industrial markets — directly comparable to Karman's Vibro-Insulator line and rubber-to-metal bonding expertise.
• Timco Rubber: Timco Rubber is a US-based custom molded rubber product manufacturer offering compression, transfer, and injection molded elastomer parts and rubber-to-metal bonded components — directly comparable to Karman's custom molded products division.
• Vibratec: Vibratec (France) specializes in anti-vibration elastomer mounts, rubber-metal isolators, and damping solutions for naval, rail, and industrial equipment — directly comparable to Karman's vibration isolation products and rubber-to-metal bonding capabilities.
• Minor Rubber Products: Minor Rubber Products is a US manufacturer of custom molded rubber parts, vibration isolation mounts, grommets, and elastomer-to-metal bonded components — closely comparable to Karman's custom molded rubber and standard product offerings.
• Stockwell Elastomerics: Stockwell Elastomerics manufactures custom molded silicone and rubber components, gaskets, and vibration isolation pads for industrial and electronics customers — a comparable US-based specialty rubber molder serving similar OEM and industrial markets.
• Hutchinson (Paulstra): Hutchinson's Paulstra brand produces anti-vibration mounts, flexible couplings, and elastomer-to-metal bonded components for automotive, rail, and industrial markets — closely overlapping Karman's vibration isolation product portfolio and rubber-to-metal bonding technology.

Broad incumbents

• Sumitomo Riko: Sumitomo Riko is a major Japanese manufacturer of anti-vibration rubber products, hoses, and elastomer components serving automotive and industrial OEMs — overlapping Karman's rubber-to-metal and isolator product lines at significantly larger scale.
• Parker Hannifin: Parker's Engineered Materials / Lord Vibration & Motion Control divisions produce elastomeric vibration isolation mounts, rubber-to-metal bonded isolators, and precision dampers — overlapping Karman's Vibro-Isolator line within a much broader industrial portfolio.
• Trelleborg AB: Trelleborg is a global polymer engineering leader whose anti-vibration solutions (engineered rubber mounts, NVH components) directly compete with Karman's isolators, while also serving broader sealing, bearing, and offshore markets at much larger scale.
• ContiTech (Continental): Continental's ContiTech division manufactures industrial rubber products including anti-vibration mounts, elastomer bearings, and rubber-to-metal components for automotive and industrial customers — a broad incumbent in Karman's core anti-vibration category.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks3 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/karman-rubber-company

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 Karman Rubber