Recent Forum Topics

Struggling to lay the ecological and environmental protection battle is a very high controversial topic during the nineteenth conference, while the dust, coal dust produced during the sand making process is one of the major threats to the deterioration of the ecological environment. So in the future market, green development will be the inevitable trend of mine sand making machine. Based on this, the following is a brief description of the knowledge related to green and...Read More...

ADRE 408 Sampling Rate - 25,000 samples/second

Dear Users We are long term users of the ADRE 408 data acquisition system, monitoring vibration information on our large rotating machines. We typically monitor vibration levels from Bently Nevada non-contact shaft proximity probes, and numerous seismic transducers during our machine testing. We have a new requirement to monitor bearing housing vibration, and perform a kurtosis analysis on the data. For this we need a sampling rate of 25,000 samples/second. I know the fastest sampling rate...Read More...
Last Reply By John from PA · First Unread Post

Threaded Impeller to shaft clearance

Hi everyone, Can someone tell me what should be the clearance/fit for semi open impeller which tightens on the shaft threaded area? We have a overhung pump here with semi open impeller. The manufacturer has provided the impeller thread ID as 60 mm and shaft thread OD as 58 mm (a clearance of 2 mm). However he has also provided a small screw which tightens on the shaft from the outside after impeller is fitted. Is this clearance for the threaded connection normal? If no external screw is...Read More...
The original manufacturer gives the first life to flotation machine, but where its life ends is grasped in the users’ hands. Although the machine can not express their own needs like creature does, it is necessary to replenish nutrients to flotation machine in time. Just like human skin needs maintenance, the machine also needs timely and effective maintenance. Only in this way can make the flotation machine life longer and combat stronger. Below are some maintain methods of flotation...Read More...