Sliding Bushings

Q: What makes a high-quality plain bearing?

Firstly, the perceived product quality is what makes a high-quality plain bearing. It quickly becomes apparent whether all embossing is cleanly machined, no stamped edge marks or frayed edges are visible, and the materials and colors are right at first glance. In addition, all dimensions and measurements of a high-quality plain bearing are correct - regardless of the (very high) quantity. In-house and supplier test protocols ensure flawless product quality. Ultimately, the delivery of a high-quality plain bearing always includes appropriate written documentation, e.g. in the event of complaints.

Q: Are there quality differences in the manufacture of plain bearings compared to suppliers from the Asian market?

If you look at the Asian market itself, there are generally major differences. Synergy effects are usually limited to manufacturers who can provide additional value, e.g. through their expertise in a particular industry. However, it is possible to carry out development work together and across national borders. At ttv, the joint development and definition of quality criteria for plain bearings is a common and very successful method. This includes our presence on site, e.g. during production processes and quality inspections.

Q: Do you only deliver your plain bearings in Germany?

We mainly deliver in Germany, but we also receive inquiries from abroad. Of course, we also supply our plain bearings outside Germany.

Q: What quantities of plain bearings can you supply?

The quantities you order depend on your industry and your bearing dimensions. We are able to supply very large quantities, i.e. 100,000s. In the automotive sector, it is quite common for us to process orders of up to 400,000 units. In the woodworking industry, it is less. However, the requirements for the size and wear resistance of the plain bearings are different. Please feel free to contact us with your ideas regarding quality and quantity. We will supply exactly the plain bearings you need - in the quantity you require.

Q: Do you supply your plain bearings as part of a single order or do you have regular customers?

It really depends on your industry. While steel and hydropower plants usually place a one-off order with us, our order situation in the automotive sector consists of around 80% ongoing series orders. We attach great importance to supporting you with our expert knowledge over many years and offering you peripheral applications such as mechanical seals in addition to your plain bearings. And that pays off. More than half of our orders consist of recurring business. The establishment of trusting communication and mutual trust are.

Sliding Bushings
Wide range of plain bearings in all variations and solutions

ttv sliding bearing technology is used in a wide range of applications in drive technology, machine and commercial vehicle construction as well as in the road construction and agricultural industries. Whether in wind turbines or power tools, our plain bearing technology ensures the reliability and functionality of your machines. It is characterised by the highest technical standard and state-of-the-art production processes. In addition to a large range of plain bearings available from stock, we are increasingly focusing on customer-specific solutions.

As a specialist in sliding bearing technology, we know: Wherever heavy loads are to be moved with low friction, resilient, high-quality plain bearings are needed. We are increasingly meeting these continuously increasing requirements with individually developed products from our Engineering Solutions department.

All ttv products naturally meet the technical and economic requirements of leading industrial companies. Individual features are optimally implemented by us and secure your application with the highest reliability.

1: Solid expertise, a wide range of solutions & the exploitation of all synergies:

At ttv, you not only get the plain bearing you need, but also decades of experience and combined solutions on top. Instead of short-term results and generic offers, we stand for reliable and sustainable system solutions and added value.

2: Optimum availability:

We communicate clearly and always proactively about the timely availability of your required quantities. You can rely on our prompt preparation of quotations, absolute adherence to deadlines and rapid response to all questions relating to your new and ongoing plain bearing requirements.

3: Your special solution:

Would you like to create new design perspectives and competitive advantages with a special solution for your plain bearing? Challenge us. With in-depth technical expertise and product creativity through industry diversity and synergy effects from plain bearing, sealing and fluid technology, together we will develop exactly the plain bearing you need for your decisive advantage in the market.

4: Highest quality assurance

We consistently and reliably ensure the quality of your plain bearings through regular inspections and systematic monitoring of all production processes, including intensive exchanges and audits in the production plants. As a result, we always have our finger on the pulse of ongoing production processes (including continuous process optimization to reduce rejects, new technical developments and the implementation of combined solutions as individual components or assemblies)

5: Service

You always have a personal contact if you have any questions about your plain bearing. With many years of comprehensive expertise, we can provide you with competent support. We are also happy to support you with questions that go beyond your plain bearing with our specially established team of experts and, at your request, jointly expand solution perspectives in a holistic, goal-oriented approach.

6: Stable price level

At ttv you will find a price level in line with the market. Our plain bearings are designed for long and reliable operation.

7: Stable price level

Save time and money by avoiding different suppliers of plain bearings and sliding seals. At ttv, you get products and combined expert knowledge from a single source. Not only for your planned plain bearing application, but also the answers to the peripheral components.

The plain bearings are installed by pressing them into a machined housing "H7".

Please note the following:

Creating an insertion bevel, cleaning and deburring the parts to be assembled
Lubricate the outer surface of the plain bearing before assembly
Check the axiality between the installation space and the centring axis of the plain bearing
if two slide bearings are required, they must be aligned
use a fitting mandrel of the appropriate size

Assembly is carried out using hydraulic presses or mechanical machines. The maximum resistance (F) is shown in the following table:

Strip thickness

1 mm: F = 300 N × L 1,5 mm: F = 500 N × L 2 mm: F = 700 N × L 2,5 mm: F = 900 N × L

For sliding bushings with a diameter < 55 mm, it is recommended to use an installation ring with a diameter of 0.3–0.4 mm.

The method used to check the strip thickness consists of checking the inner and outer diameter dimensions. The diameters must not be measured again before pressing in the sliding bushing, as this causes inaccurate measurements. The ISO 3547 standard (replacement for DIN 1494) describes the applicable method of measuring the diameter.

External diameter, Test A

The testing equipment must comply with the ISO 3547 standard. The device consists of two halves, into which the sliding bearing is inserted and then clamped in place. During the tests, the two halves are pressurised and checked to see how far the sliding bushing yields. If the deviation "Z" is confirmed to be within a certain range, then the external diameter can be classed as correct.

Inner diameter, Test C

The sliding bushing is pressed into an appropriate bore with a diameter tolerance as per "H7". Once it has been pressed in, the inner diameter can be checked using suitable measuring tools.

Frequently asked questions

What makes a high-quality plain bearing?

Firstly, the perceived product quality is what makes a high-quality plain bearing. It quickly becomes apparent whether all embossing is cleanly machined, no stamped edge marks or frayed edges are visible, and the materials and colors are right at first glance. In addition, all dimensions and measurements of a high-quality plain bearing are correct - regardless of the (very high) quantity. In-house and supplier test protocols ensure flawless product quality. Ultimately, the delivery of a high-quality plain bearing always includes appropriate written documentation, e.g. in the event of complaints.

Are there quality differences in the manufacture of plain bearings compared to suppliers from the Asian market?

If you look at the Asian market itself, there are generally major differences. Synergy effects are usually limited to manufacturers who can provide additional value, e.g. through their expertise in a particular industry. However, it is possible to carry out development work together and across national borders. At ttv, the joint development and definition of quality criteria for plain bearings is a common and very successful method. This includes our presence on site, e.g. during production processes and quality inspections.

Do you only deliver your plain bearings in Germany?

We mainly deliver in Germany, but we also receive inquiries from abroad. Of course, we also supply our plain bearings outside Germany.

What quantities of plain bearings can you supply?

The quantities you order depend on your industry and your bearing dimensions. We are able to supply very large quantities, i.e. 100,000s. In the automotive sector, it is quite common for us to process orders of up to 400,000 units. In the woodworking industry, it is less. However, the requirements for the size and wear resistance of the plain bearings are different. Please feel free to contact us with your ideas regarding quality and quantity. We will supply exactly the plain bearings you need - in the quantity you require.

Do you supply your plain bearings as part of a single order or do you have regular customers?

It really depends on your industry. While steel and hydropower plants usually place a one-off order with us, our order situation in the automotive sector consists of around 80% ongoing series orders. We attach great importance to supporting you with our expert knowledge over many years and offering you peripheral applications such as mechanical seals in addition to your plain bearings. And that pays off. More than half of our orders consist of recurring business. The establishment of trusting communication and mutual trust are.

Sliding bushings for all markets.

Whether in the agricultural machinery sector, the construction machinery sector, the forestry technology or drive technology sectors, the mechanical engineering sector, the automotive industry or the aerospace industry, our sliding bearings meet even the most demanding requirements of any industry. Wrapped sliding bearings, solid lubricant sliding bearings or turned solid sliding bearings are the best examples of the solutions we keep in stock.

Anyone looking for maximum performance for their products will find the perfect solution with our Engineering Solutions. With our customer-specific sliding bearings, we offer added value in all of the crucial product parameters. Find out about our expertise in the area of sliding bearings and get in touch with us to discuss your projects.