Prices incl. VAT plus shipping costs
- Order number: 1054
- Manufacturer Part Number: 1270016434
- EAN 4047025332477
Delivery time to Germany 17-18 Workdays
The Bosch expansion sleeves M8, T40 must be replaced after disassembly of the Classic-Line drive unit.
What is the Bosch expansion sleeve M8 (PU=3) used for:
- The Bosch Classic motor expansion sleeve M8 (motor screws sleeve) is required to attach the Bosch ClassicLine motor to an eBike frame together with the Bosch mounting plate.
- The Bosch Classic motor has 3 stud bolts for this purpose, which are firmly connected to the motor housing and therefore cannot be replaced.
- These original expansion sleeves are needed to create a backlashfree connection between the drill hole and the screw connection on the one hand.
- On the other hand, during deformation, the thread is enclosed more tightly, thus preventing the connection from loosening on its own.
- It is essential to use the original expansion sleeve, as the original product is specially designed by Bosch for this application and only this ensures a secure connection between the different materials (steel, aluminum).
Why does the Bosch expansion sleeve M8 have to be replaced after every engine change? What torque do I need to pay attention to?
- Each expansion sleeve on the Bosch Classic engine can be used only once, because a "deformation" of the sleeve already occurs during the correct assembly process, while maintaining the required torque of 2530 Nm.
- A reused old Bosch Classic M8 expansion sleeve can break or loosen by itself and thus lead to a fall.
Important safety note:
- When reusing used expansion sleeves, there is an acute risk of breakage and thus an increased risk of accidents.
- If the sleeve is stretched, it is not possible to tell visually.
- If correctly installed, however, it must be assumed that the expansion sleeve is "used up" in any case when installed and must be compulsorily replaced after loosening this screw connection.
|Bosch System:||Bosch Classic Plus Line|
|Item:||Bosch E-Bike Extension Sleeve M8 for drive unit|
|Scope of delivery:||3x expansion sleeve M8. Torx T40|
|Maker's ref. no.:||1270016434|