Precision Molded Rubber Parts
Services
Rothkopf Differences
TRUSTED
Our customers engage us as a trusted partner to source critical system components made from high-quality precision-molded rubber.
RELIABLE
Our proprietary, fully vetted, reliable network of resources offers unmatched quality, production timeliness, and cost-effective solutions.
SERVICE
Our proactive approach, extensive experience, and customer-first service delivers exceptional value that is unparalleled in the marketplace.
VALUE
Value is more important than cost at Rothkopf. A poorly sourced part at a lower price isn’t always the better choice, it is often a costly one, causing clients delays and potential project failures. The Rothkopf experience is better than a low price; we ensure that we are recommending/sourcing the right part for your project, every time.
Who We Are
Our Story
Rothkopf excels at delivering the right rubber assembly component at the right time and at the right price. These components are critical in our customers’ product performance or operations, and they trust us to provide the highest quality product every time with no margin for error.
Your source for precision molded rubber products
Seals
Seals for a broad range of applications are available, including hydraulic, piston, shaft, wipers, buffers, wear rings, and custom-tooled.
Back-up Rings
Back-up rings work with an O-ring in higher pressure and temperature applications to prevent the O-ring from extruding into the clearance gap between sealing surfaces.
Lathe-Cut
Lathe-Cut rings have a square cross-section profile, perform well in static applications, fit in O-ring grooves, and are interchangeable size-for-size with standard O-rings.
Oil Seals
Oil seals, rotary shaft seals, and V-rings are used to seal in system fluids and lubricants while keeping out dirt and contaminants.
X-Rings
X-Rings have a four-lobed cross-section profile that provides twice the sealing surface of an O-ring, fit in O-ring grooves, and are interchangeable size-for-size with standard O-rings.
U-Cups
U-cups or Lip seals perform well in rod, piston, reciprocating, and some rotary applications. As pressure increases, the “U” shape self-energizes to maintain sealing effectiveness.
Diaphragms
By definition, rubber diaphragms are flexible seals that prevent unwanted transmission of substances between two places. These substances can be liquid, gasses, or solutions. They are characteristically tough and dynamic and essential in many flow control applications.
Cord Stock
Cord stock is O-ring material ready to be cut to create custom size O-rings. There is a large selection of cross-sections available and can be cut to any length you need or in standard put-up lengths.
Gaskets
Our rubber gaskets can seal items, stop vibration, and reduce noise pollution.
Custom Parts
Custom parts can be anything from a unique shaped widget or just a standard style part (O-ring) with a non-standard set of dimensions.
O-Ring Sizing
blog
Our Latest News & Insights
Navigating the Supply Chain Maze: Rothkopf’s Expertise in Critical Parts Sourcing
How Rothkopf is the right partner to source your unique parts and can make sure there’s no delivery/supply lag time.In the highly technical world of specialized manufacturing, securing the right components is akin to solving a complex puzzle. For industries with...
5 Challenges to Finding the Right Rubber Parts in 2024 (And How We Can Help!)
Any engineer or supply chain professional knows the challenges of finding the exact right rubber part for the right application in 2024. When sourcing everything from o-rings to seals, problems and original equipment manufacturer issues can arise with finding the...
How a Partner Can Help You Manage Inventory
Every business has the goal of growth, but as you grow, it becomes increasingly difficult to keep yourself organized and stay on top of the everyday priorities, like the inventory of small, inexpensive items such as rubber components. Yet just because these items are...