How to Repair Pump Bearings

[ Water pump bearing ─ rolling bearing repair]

1) Rolling bearing general average life of about 5000h, if used too long or improperly installed and maintained, will make the bearing damage. Found that there are cracks in the inner and outer rings of rolling bearings, ball broken, and the ball and the gap between the inner and outer rings with 03mm feeler gauge exceeds the provisions, should be replaced with a new bearing.

2) If the inner ring is tight or not flexible enough, the cage may be due to deformation crooked and bearings Σ Σ grain? Stupid to take along with the lemon cover 崆 崆 Why 旨 3 purpose 埽 孕 Pregnancy U ? 湫 湫 tail lesson arc? / P>

3) If the appearance of rust, emery paper can be used to erase, and then washed and dried.

4) The pump shaft and bearing inner ring with tight, generally with pressure method, if there is any difficulty heating method available.

【Pump bearing ─ sliding bearing repair

1) Repair of bearing bush: bearing bush bearing is the most easy to wear or burn out parts. In general, if the bearing pad alloy surface wear, abrasion, spalling and melting greater than 25% of contact area of ​​the bearing, the bearing alloy should be re-cast.

2) Scraping of bearing bush: Scraping bearing bush should be coated with a layer of red lead oil on the pump shaft first, and then turn the pump shaft back and forth within the bearing bush for two turns to remove the pump shaft. At this time, many sizes will be seen on the bearing surface Uneven distribution of black spots. These small black spots indicate that the bearing bush is higher than the part, and scraping it gently with a scraper. Then, repeat the above steps, until the bearing surface of the honeysuckle points are evenly covered. Scraping should first scraping the bearing, after scraping the bearing.

3) Measurement method of the gap between the journal and the bearing bush: The gap measurement between the journal bearing and the bearing bush is usually measured by the pressure-lead wire method. When measuring, first place the bearing on the both sides of the bearing bush and the top of the bearing 1-1.5mm fuse, and then the bearing on the bearing, cover, tighten the bolt cap and then open the bearing cap, remove the crushed fuse, and then measured the thickness of the micrometer (usually along the fuse length measurement 3-5 Click on the average).

Angle Valves

Globe Valves and angle valves are designed for throttling or regulating flow in commercial and industrial applications. Bronze, cast iron, or cast ductile iron materials. Threaded, flanged, or solder end connections.