- Joined
- Dec 18, 2019
- Messages
- 6,393
Spent some time looking into bearings. Downloaded the Timken catalog and read it a bit. Have a couple of questions. I think I need a deep groove ball bearing. Hoping it is good enough. Settled on a 6300-ZZ or 6300-2RS. That's a 10mm shaft, 35mm OD and is 11mm wide. I was thinking of using it for a pulley bearing. Want to make a pair of 4 sheave pulleys. Most of the block and tackle rigs I have seen so far are far too expensive for me to justify or far too spindly for me to trust. For this application, do I need better than ABEC-3 bearings? The ABEC-3 bearings are not terribly priced. Or should I be looking for different bearings?
Is the shaft supposed to be an interference fit? If I get a hardened shaft, how do I go about getting it to fit? It wouldn't be easy to turn down if oversized, and of course if undersized it would be useless.
For pressing the pulley wheel onto the bearing, just sneak up on the ID of the pulley to get a good fit? Have some 2.5" 12L14 that could be turned into pulleys, or some 6061.
For all of the above, I'd need either a hydraulic press or a pretty big arbor press? Currently don't have either in my shop. Not adverse to getting either one.
Thanks in advance for your comments or insights.
Is the shaft supposed to be an interference fit? If I get a hardened shaft, how do I go about getting it to fit? It wouldn't be easy to turn down if oversized, and of course if undersized it would be useless.
For pressing the pulley wheel onto the bearing, just sneak up on the ID of the pulley to get a good fit? Have some 2.5" 12L14 that could be turned into pulleys, or some 6061.
For all of the above, I'd need either a hydraulic press or a pretty big arbor press? Currently don't have either in my shop. Not adverse to getting either one.
Thanks in advance for your comments or insights.