Robbins & Myers 630-0552-061 Ball Bearing for Moyno 500 Model 367
Part number 630-0552-061 is the replacement ball bearing for the Moyno 500 Model 367, fitted two per pump. Bearing condition governs shaft alignment, and shaft alignment governs how long the shaft seal lasts.
Fitting matters as much as the part. Press a bearing on by its inner race, never by driving on the outer race, because the shock passes through the balls and leaves indentations that give a rebuilt pump a rumble from the first hour. Renew the slinger and the shaft seal at the same time, since both are reached on the same strip down and both protect the bearing you have just fitted. The 356 pumps take a different bearing under its own part number, so the two are not interchangeable despite the similar numbering.
Key Features
- Replacement ball bearing for the Moyno 500 drive end
- Built to the original Moyno bearing specification
- Fitted two per pump
- Matched to the Moyno 500 Model 367
- Restores true shaft alignment so a new seal can run concentric
- Direct replacement, no machining required
Applications
- Moyno 500 Model 367 progressing cavity pumps
- Replacing a bearing that rumbles, feels notchy or runs hot
- Rebuilding a drive end after a shaft seal leak
- Full overhaul alongside shaft, seal and slinger
- Planned maintenance on continuously running pumps
- Industrial, marine, dockside and washdown installations
Specifications
- Brand: Robbins & Myers
- Manufacturer: Robbins & Myers (Moyno)
- Manufacturer Part Number: 630-0552-061
- Part Type: Ball bearing, drive shaft
- Quantity Used: Two per pump
- Fits: Moyno 500 Model 367
- Condition: New
Frequently Asked Questions
Q: What should be checked at the same time?
The shaft journals for scoring, the slinger for hardening, and the shaft seal for any sign of weeping, since a leaking seal is the most common reason a pump bearing fails early.
Q: Should both bearings be changed together?
Yes. They have run the same hours under the same conditions, and mixing a new bearing with an old one leaves the tired one setting the service interval for both.
Q: Do they need packing with grease before fitting?
Sealed bearings arrive greased and should not be opened. Where the build uses shielded bearings and a grease fitting, follow the lubrication instructions for your pump rather than overfilling, since too much grease runs a bearing hot.
Q: What makes a pump bearing run hot?
Over greasing, a preloaded fit, misalignment at the coupling, or a bearing already damaged by contamination. Check alignment and grease quantity before assuming the bearing itself is at fault.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct ball bearing before you order.
CLRMarine
