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Recent content by Lotusbert

  1. Lotusbert

    looking for a manufacturer of special castor-bearings

    Hi, I'm looking for a manufacturer of special bearings who can make me the following -a double row ball bearing, dust sealed, OD 36 mm, length outerring 30 mm, ID 8, length innerring 34 mm, min diameter of innerring aprox 17 mm, load capacity ca 90 kg at 200 rpm this is the kind of bearing...
  2. Lotusbert

    equivalent load of a deep groove ballbearing

    Thanks for the repies ! In fact my application is the head of a swivel castor. The bearing(s) in the head are most of the time under a static load. I want to design a optimised swivelhead with standard bearings. So to know how to calculate the bearing(s) would be very helpful. There are...
  3. Lotusbert

    equivalent load of a deep groove ballbearing

    Goodmorning ! I need to find a formula to calculate the equivalent load of a deep groove ball bearing wich is loaded with an axial load, a normal load and a torque load.This torque pushes the outer ring on one side to the right, 180 degrees further to the left. How do you calculate this ...
  4. Lotusbert

    ATEX guideline

    Thanks PeterCharles for your information, it brings a bit of light in the darkness. We are an european compagny located in Belgium, so ATEX is important to know and to apply where necesary. As mentioned in my first note, these wheels are tested according to recent european norms made special for...
  5. Lotusbert

    Rubber coated Pinch wheel

    Roozle, both for a rubber or a polyurethane covering the aluminium wheel must be gritblasted and cleaned with solvent. a bonding agent is applied and there is the first difference in used chemicals between rubber and pu. Rubber is molded into a closed heated mold by compression or...
  6. Lotusbert

    ATEX guideline

    PeterCharles, thanks for the tip, but that was where I got stuck. This guideline is written by sollicitors and I can't conclude myself if an electric conductive wheel must comply or not. I contacted several national institutes for advice but no-one has answered sofar. Seems to be difficult...
  7. Lotusbert

    ATEX guideline

    Hello, we are a manufacturer of wheels and castors. We have developed an electrical conductive wheel for forklift trucks and other applications, complying with EN12533 and ISO2878 (electrical resistance is less than 10000 Ohm). I know there is a new guideline called ATEX. How can I know if...
  8. Lotusbert

    calculating the stresses in a welded wheel

    Hi, I have to calculate the stress in the circular weld where the flange and the rim come together of a steel welded wheel. Any sugestions what formulas that I have to use ? I have to do this for single and double flanged wheels. kind regards
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