Crossmanufacturingco 1938 ltd

With OE quality spare parts directly from the OEM, we cover a wide range of vehicle needs with precision-engineered parts for passenger cars, heavy-duty vehicles, two-wheelers and e-mobility.

When our hubs have passed the point of a bit of preventative maintenance it’s essential to have the specialist tools, the right parts and the correct know-how and mechanical skills to replace the bearings and do the job right. The beauty of a sealed bearing hub is that in most cases, even if you ride your hubs for many miles, through the worst conditions, with no servicing until they seize solid, there’s a good chance they can be brought back into service again. This is due to the bearing surfaces being part of the bearing itself and therefore replaceable, rather than part of the hub shell as is the case with most cup and cone style bearing assemblies.

Freudenberg Sealing Technologies boasts a rich history of innovation, having introduced the first Simmerring® nearly a century ago. Today, we continue to uphold that legacy by delivering cutting-edge solutions that meet the evolving needs of automotive engineering across a wide spectrum of applications including cars, vintage cars, commercial vehicles, trucks, tractors, construction machinery, and two-wheelers. As the aftermarket distribution arm of the Freudenberg Group, Corteco offers a comprehensive range of over 7,000 gaskets and 6,500 different shaft seals, Simmering®, and valve stem seals—all available in OEM quality. Our commitment to excellence ensures that every Corteco product adheres to the stringent standards set by leading European car manufacturers, providing you with peace of mind and unparalleled performance.

Corteco’s brake hose range is one of the most comprehensive offerings, complete with pre-fitted brake hose accessories, in the automotive aftermarket industry.

Wheel bearings have a tough life on a bike. Rather than simply 'wearing out', usually their demise is related to the ingress of water/dirt that degrades lubrication and causes corrosion. Once this occurs, a bearing can deteriorate very quickly. As riders we want our hubs to offer minimal resistance, but at the same time, for most of us, we want them to be as maintenance-free as possible. Unfortunately, there’s a conflict of interest here because bearings that are very resistant to the elements are usually packed full of thick grease and have multiple tight-fitting seals, all of which rob us of precious watts!

A radial shaft seal is a crucial component in an engine, designed to prevent the leakage of fluids and contaminants along the rotating shafts of crank- and camshafts.

It is more than just a bolt; it is the key to ensuring the smooth flow of clean oil and the effective removal of the old, potentially contaminated oil.​

With more than eighty years of industry expertise, Simmerring® has become a globally recognized brand synonymous with reliability and precision. Our range of applications continues to expand, catering to diverse automotive needs with unmatched precision and efficiency.

Plastic seal

Welcome to our oil seal product range, where quality meets precision engineering. At Corteco, we take pride in offering you the finest oil seals sourced directly from Freudenberg Sealing Technologies, the pioneering leader in seal manufacturing since 1929. When you choose Corteco oil seals, you’re selecting the original seal designed and engineered for leading European car manufacturers. Each seal is meticulously crafted to fit perfectly, ensuring optimal performance and durability for your vehicle or engine. With Freudenberg’s extensive manufacturing expertise backing us, we guarantee the highest standards of quality and reliability in every product.

Servicing a sealed bearing hub generally involves stripping the hub down – removing the axle and freehub body and cleaning and inspecting all parts. Rebuilding the hub is a reversal of disassembly with the addition of a film of light grease on all the components. Particular attention should be paid to greasing the seals and the freehub body mechanism. Only a film of grease is needed, and it mustn’t be too thick and heavy as this will restrict the freehub body and could cause it to malfunction. This service is almost always done whilst leaving the main bearings in place as removal can damage them. This preventative maintenance is virtually free, keeps overall running costs down and keeps us on our bikes and happy. For more information on bearing and freehub servicing, please see this guide.

New bearings need to be of the correct specification - replacement bearings for all HUNT wheelsets can be found and ordered here. They should be pressed into the hub using a good quality bearing press of the correct dimensions, so that the applied force is taken up by the outer race of the bearing. Loading just the inner race, the bearing seals or using a punch or screwdriver to seat the bearing will usually render it useless from the start. Bearing presses are expensive and, as this job doesn’t need to be performed super frequently, it’s usually one that’s best left for your friendly local bike shop. Alternatively, you can return your wheels to us where we can let you know the cost (if any) of the replacement/service.

Securityseals

Since 1978, TransTec® brand automatic transmission seal kits have been synonymous with the highest quality and dependability.

There will come a time when your bearings do need replacing and this time depends upon several factors – what you ride, where you ride, how you ride, your cleaning regime and what preventative maintenance was performed over the life of the bearing. Bearing life can be extended through preventative maintenance and it works in a similar way to how we might replace the oil in the engine of a car. Sometimes no benefit is felt after the service, but it extends the life of the components considerably. If we wait until parts feel bad, then usually irreparable damage has been done and it’s time for a rebuild.

Discover Corteco’s convenient online services! Findyourseal.com simplifies your search for oil seals, while ecatcorteco.com offers a comprehensive catalog of automotive spare parts. Optimize your parts procurement process and find the perfect components quickly and easily with Corteco’s online platforms.

As ever, if we haven’t answered your questions here, then get in touch with our Rider Experience team via email or live chat. We are always happy to talk wheels and do what we can to get you rolling smoothly again.

Valve stem seals are essential engine components that prevent oil leakage into cylinders, ensuring efficient combustion and reducing emissions.

We use what are commonly referred to as sealed cartridge bearings in all our hubs, but maybe the word sealed is misleading because it conjures up thoughts of being completely impenetrable and impervious to anything. Of course, whilst the bearings in our hubs offer a great balance of low resistance and effective sealing, they are not indestructible. A poorly aimed pressure washer, overuse of degreasers or bike cleaner, or a river crossing or two followed by a period of inactivity can cause a bearing to corrode and feel rough next time the bike is wheeled out. This corrosion is not covered under warranty, although of course, we are happy to carry out an inspection.