You will find the expected delivery date of your order on your order confirmation. Please note: The confirmed delivery date refers to the date on which the goods leave our premises.
Our standard shipping for packages up to 32 kg / 2.70 m is carried out by our shipping partners UPS and DHL, all other shipments are delivered by a forwarding agent.
Yes, please note our minimum order value of €75.00.
You can choose between standard shipping and express shipping.
- Standard shipping within Germany includes a shipping fee of €14.00.
- Express shipping enables delivery within 1-2 working days. Please get in touch with your TRETTER contact person if required.
Yes, in principle you can also return products. Please get in touch with your TRETTER contact person.
Our packaging is recyclable and we attach great importance to sustainability. For example, we do not dispose of our suppliers' packaging - we reuse it. Cardboard packaging, for example, is shredded and used as filling material.
Yes, express delivery is possible. Please get in touch with your TRETTER contact person. Items in stock can be delivered within 24 hours.
Express deliveries can be scheduled to the exact day. Please get in touch with your personal TRETTER contact person.
Delivery abroad is generally possible. Please enter the correct delivery address when ordering.
We bear the transportation risk when shipping with the carrier we have selected. If you arrange transportation with your own forwarding agent or collect the goods yourself, you bear the risk.
The shipping costs of the order depend on the size and weight. You will receive the specific details in your individual order process.
We will process your repair request as quickly as possible, please contact us at info@tretter.de or by telephone on +497161 95334-0. If a repair is no longer possible, we will provide you with an appropriate solution.
You can access the CAD data here.
You can order at any time by e-mail or fax. You can also contact our customer service by telephone.
Complete data is required for first-time orders. Please send them to us here in writing.
The standard condition at Dr. TRETTER is FCA. You are welcome to contact your personal contact person if you wish to make changes.
Yes. As with a conventional ball bushing, the balls are held in place by a cage. When removing, however, care must be taken to ensure that the bushing and thus the lugs on the wiper are not twisted. Therefore, before inserting the shaft into the torque ball bushing, it must also be checked that the ball tracks and the lugs of the seal are in line.
Yes. We can supply you with the following torque shafts:
- Torque shafts cut to the required dimensions
- Shafts or hollow shafts machined to customer drawings
- Reworked torque ball bushes, e.g. with additional holes or flattening on the flange
The main difference is the shaft diameter.
As experts, we only supply hardened and ground shafts made of Cf53, also as hollow shafts or hard chrome-plated, and corrosion-resistant solid shafts made of 1.4112.
Our ball bushings are only preserved with an anti-corrosion oil and are greased by the customer during assembly. This initial greasing is usually sufficient for lifetime lubrication.
The only exception here are our torque ball bushings. These are initially greased at the factory and must also be relubricated regularly. (Under normal conditions every 6 months or after 1000 km)
The following applies to standard ball bushings: max. inner diameter (d as per catalog) - min. shaft diameter = max. play
For example, for NB02-030 and 30h6 shaft: 30.011 - 29.987 = 0.024 mm.
However, as at least 2 shafts are generally used for a ball bushing guide, the play is reduced by misalignment and shaft offset. If a backlash-free guide is required, slotted KB with slotted, adjustable housings can be used.
The terms of payment are by invoice and cannot be changed. If you require further information, please contact us by phone or e-mail.
Payment for orders is possible by invoice. We reserve the right to change the terms of payment to prepayment in the event of a lack of creditworthiness.
Stainless steel shafts and ball bushings are not made from tenitic stainless steel, but from martensitic stainless steel, as this must be hardenable for ball bearings. This material therefore also has ferritic properties such as magnetizability.
magnetizability.
Although stainless steel tolerance sleeves are made of tenitic, non-magnetizable 1.4301, cold rolling the strip material and forming it into a tolerance sleeve creates a martensitic structure, which is responsible for the magnetizability.
You can contact TRETTER customer service by phone, e-mail or fax. The contact form here!