CTI Gearbox, refurbishment, British Steel
CTI Gearbox, refurbishment, British Steel
British Steel
Project details
Client: | British Steel |
Application: | Overhead track drives |
Gearbox: | CTI |
Reported Problem: | Persistent & frequent failures of geared components & bearing journals |
Considerations: | Thin wall SG iron gear case. Some shock loadings. Some mis-alignment. |
Brief: | Graph gears to ascertain optimum contact. Manufacture replacement gears to upgraded specification. EN19 flame hardened. Refurbish gear unit introducing EN24T bearing sleeves. |
Result: | Improved working practices, OEM bearings & reversed engineered parts now see MTBF increased to over 18 months |
Unit in-situ
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-2.png)
Gear unit fitted to hook assembly
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-3.png)
Gear running condition
Modifications
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-4.png)
Modification proposal
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-5.png)
Replacement gears
Unit as Received
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-6.png)
Worn bearing journal & pinion
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-7.png)
Completed refurbishment
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-8.png)
Refurbished gear units with new gears & bearing bushes
![](https://dana-sac.co.uk/wp-content/uploads/2019/02/CTI-9.png)