If you have a Bobcat, it can be a challenge to correctly identify which model you need when it's time to replace your final drive. In this Shop Talk Blog post, we are going to cover how to differentiate between the most confusing models. It's important to recognize the differences if you want to make sure you order the correct one for your machine!
Identifying Bobcat T140 / T180 / T190 Final Drive Motors
There are four types of final drive motors for these Bobcat machines (T140, T180, and T190) based on characteristics such as how many hydraulic ports they have, how many sprocket bolts, and whether they are short-nose or regular final drive models. Let’s start with the five-port final drives.
Five Port Drive Bobcat T140 / T180 / T190 Final Drives
If your Bobcat final drive has 5 hydraulic ports, the 5th port will be located at the bottom of the drive on the flat cover plate that is held on by 24 bolts. There are two types of five port Bobcat final drives: short nose and regular nose. Shown below is an easy way to determine which 5 port model that you have.
Note that the dimension shown on the regular model is 6.5" and the one for the short-nose model is 6.25" -- only a quarter of an inch of difference amounts to major problems if you order the wrong one. Be sure to take these measurements very carefully.
Four Port Bobcat T140 / T180 / T190 Final Drives
There are two types of four port final drives for the T140 / T180 / T190 models. The difference between them is very simple: one type has 12 sprocket bolts and the other has 6 sprocket bolts, just like you see in the picture below.
Identifying Bobcat T200 / T250 / T300 / T320 / 864 Final Drive Motors
When it comes to final drives and travel motors for these Bobcat models, there are two types: long nose and short nose. The best way to tell the difference is look at the distance from the top of the center mounting flange to the top of the sprocket flange. For a long nose, this distance will be around 7″, but for a short nose it will be about 5 1/2″.
You can also determine if you have a long nose or short nose final drive by measuring the depth of the sprocket, as shown below. The sprocket depth for the long nose version is 6" and the depth for the short nose version is 4.5".
Conclusion
It is very important that you order the correct model of final drive travel motor for your Bobcat machine. We know that for some machines, however, it can be tricky to order the right travel motor. These hints should help you quickly identify which type of Bobcat final drive motor you need and help you get your machine running again as soon as possible.
Here are some more blog posts that deal with Bobcat machines ...
- Autopsy: Bobcat 331 Mini Excavator Final Drive
- Bobcat 325 Rotator Group Damage
- Bobcat 337 Final Drive Failures
- Bobcat T190 Drive Shaft Bushings
- Reman Bobcat T190 Final Drives
Texas Final Drive is your partner in providing new or remanufactured final drive hydraulic motors from a single mini-excavator to a fleet of heavy equipment. Call today so we can find the right final drive or hydraulic component for you, or check out our online store to find your O.E.M. manufacturer brand motor now.
