Shop our Airplanes Products Drone Products Sales
Thread Tools
Apr 17, 2002, 01:54 AM
Most Exalted Windbag

Need ball bearing help

I need some ball bearings. I've been looking in Tower Hobbies catalog.
When they give a specification of 3/16 x 3/8" is that the ID x OD?

Sign up now
to remove ads between posts
Apr 17, 2002, 04:53 AM
Registered User
Yes thats what it will be, you also may need to know the width of the bearing to check it will fit in the housing.

There is a good discussion on bearings (allbeit in reference to IC motors) on the UK based RC Flyers web site, see >

You will find your bearings much cheaper from a bearing suppler rather than a hobby outlet.

Apr 17, 2002, 10:48 AM
Cal Slope Criminal@DV
Duke58's Avatar
RB if you go to a supplier be prepaired to work in metric , bearings don't really come in fractional sizes.
Apr 17, 2002, 12:00 PM
Registered User
Here's a good source for bearings, both inch and metric sizes, once you've determined the size you need.

Apr 17, 2002, 01:33 PM
Most Exalted Windbag
Hi guys,

Thanks for the help. I want to get them from Towers since I can get other things to make shipping worthwhile. I don't need exact dimensions such as thickness since I'll be using them to cobble together chain drive propellers for a Wright Flyer.

Apr 17, 2002, 02:18 PM
Registered User
Bearings also have a speed rating, if the bearing will be subjected to high speeds or excessive side loads some bearings will not support those situations. Just make sure and check with the supplier to see if the bearing will be satisfactory for your application
Apr 17, 2002, 04:34 PM
Most Exalted Windbag
Thanks for the tip Rekit. So far I've been looking at RC car wheel bearings. I think they'll be ok.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Help! Need ball bearings for GWS 300 gear boxes poobs Power Systems 4 May 17, 2008 08:53 PM
Need Some PC Help Sligh Life, The Universe, and Politics 10 Oct 02, 2001 07:27 AM
Need A New Battery! Help! AirVenture Beginner Training Area (Aircraft-Electric) 11 Jul 14, 2001 01:12 PM
Ball bearing verses sleeved gearbox mudhead Power Systems 3 May 31, 2001 08:15 PM
Need power connector help Red Baron 47 Parkflyers 10 May 30, 2001 12:24 AM