The Onga Leisuretime LTP400 motor runs on two sealed ball bearings, one at the drive end next to the pump and one at the fan end. This CapacitorsNZ set is a matched pair covering both positions, so the motor gets new bearings at each end in a single job. It is an aftermarket set to suit the LTP400, so compare it with the bearings in your old motor before pressing it on.
Signs the Onga Leisuretime LTP400 motor bearings are worn
Bearing wear is mostly something you hear before you see it. With the pump switched off at the wall, take off the fan cover at the back of the motor, turn the fan by hand and feel for roughness.
- A growl, grinding note or rising whine from the motor that was not there before.
- The shaft feeling gritty, notchy or loose when turned by hand with the power off.
- The motor running hotter than usual, from the extra drag of a rough bearing.
- Noise that began after a leak at the seal, a common way water reaches the bearings.
Why both bearings are changed together
The drive-end and fan-end bearings carry the same shaft and have done the same hours, so when one has worn out the other is rarely far behind. Getting at either bearing means pulling the motor apart, which is most of the labour. Fitting the pair at once means you only open the LTP400 motor once, and the shaft ends up running true in two new bearings rather than one new and one tired.
Other pumps that use this bearing set
The same bearing set is listed for the DAB Jet 82M, DAB Jetinox 90M, DAB Jetinox 110M, Onga Leisuretime LTP550 and Onga Leisuretime LTP750. For other Onga models, start from our Onga service kits page.
Fitting new bearings in the LTP400 motor
Hold each new bearing against the matching old one and confirm the bore, outside size and width are the same. When pressing a bearing onto the shaft, push only on the inner ring, and when pressing into a housing push only on the outer ring, otherwise the force goes through the balls, which can dent the tracks and leave the new bearing noisy from day one. If the LTP400 seal was leaking, replace it too, or the new bearings will face the same water. The LTP400 mechanical seal is sold separately, or both parts come together in the LTP400 service kit.
Before you order
Check the old part before fitting: match the bearings in your old motor.
Capacitor details for this pump: Onga Leisuretime LTP400 capacitor guide.