When it comes to cooling your gearbox, the choice between a shell-and-tube cooler and a plate cooler can make a real difference in performance, maintenance, and footprint. Here’s a straightforward comparison to help you decide.
First, see if this sounds familiar
Your equipment has been running for a while, and you notice the gearbox getting noisier than before. The bearing housing feels hot to the touch. You open it up and find small pits on the bearing raceways. You replace it with a new one, but after some time, the same thing happens again.
The oil in your gearbox does more than just lubricate — it also carries heat away. When oil gets contaminated, friction heat builds up rapidly at gear meshing points and bearing raceways. This not only damages gears and bearings but also leads to severe overheating and eventual failure. That’s why your gearbox needs regular oil changes and scheduled maintenance — just like your car.
Gearbox Selection: The Most Common Mistakes
Selecting the right gearbox isn’t as straightforward as it seems. Here are the most common pitfalls we see — and how to avoid them.
Not every gearbox manufacturer does this. So why do we spend hours running our gearboxes on the test stand? Today, let’s talk about what test running is really about.
What exactly are we testing for?
A test run isn’t just about powering up the gearbox and letting it spin. It’s about simulating how it will perform on your production line. During these 4 to 6 hours, we focus on four key aspects:
A customer once asked us: “The gearbox temperature keeps rising during operation, and even changing to new oil didn’t help. What’s going on?” Today, let’s talk about gearbox overheating.
First, what counts as “too hot”?
Under normal operating conditions, gearbox bearing temperatures typically range between 50–70°C. In summer, if bearing temperatures consistently exceed 85°C, or in winter, consistently exceed 75°C, it indicates abnormal overheating that requires investigation.
Nothing worries operators more than unexpected sounds from running equipment. Unusual noise from a gearbox doesn’t always mean it’s broken — but it’s always a signal that something isn’t right. Today, let’s talk about how we diagnose gearbox condition based on sound and vibration.
First, learn to “read” the noise