Jaytbrat 2 Posted May 27, 2020 How many bearings does a frog have..recently got the frog not started building yet, I also got 8 bearings, but looking on some model sites there are upgraded bearings with more than 8...confused. Share this post Link to post Share on other sites
IoWBasher 170 Posted May 27, 2020 The kit comes with 4 ball bearings for the gearbox, and 8 plastic ones for the axles. So your 8 bearings will be enough to fully ball-race your Frog. Here's a link to the manual https://www.tamiya.com/english/rc/rcmanual/58354the_frog.pdf 1 Share this post Link to post Share on other sites
Jaytbrat 2 Posted May 27, 2020 Can the bearings in the gearbox be upgraded. Share this post Link to post Share on other sites
Frog Jumper 3661 Posted May 27, 2020 The bearings in the Tranny should never need upgrading if you buy good bearings to start. But to answer your question, yes you can change them out whenever. You may want to some some reading on rubber sealed vs steel sealed vs unsealed and decide what’s best for you. Terry 1 Share this post Link to post Share on other sites
Frog Jumper 3661 Posted May 27, 2020 Frog bearings: 2x 1150 each front wheel = 4 2x 1150 each rear axle = 4 2x 850 for counter gear in tranny = 2 Terry Share this post Link to post Share on other sites
Jaytbrat 2 Posted May 27, 2020 Cheers mate That makes sense now, may leave the tranny for now. Share this post Link to post Share on other sites
Juggular 4964 Posted May 27, 2020 Tamiya bearings in the gearbox are fine. But they are on the stiff side because it's jam packed with grease. Thick grease is necessary if the bearing is used in dirt. But in the gearbox, all that grease isn't necessary. If you want, you could soak those bearings in alcohol and re-lubricate them with thinner oil. You can even use WD40, just make sure to wipe it clean, so WD40 won't crack plastics. You could make them as free-spinning as a fidget spinner. The other 8 bearings for the wheels should be rubber-sealed bearings. Wheels are exposed to dirt. Rubber shields fight dirt and splashes best. You can search for "5x11x4mm bearings." They can be found as cheap as $3.60 for ten. Usually smoother rolling than Tamiya bearings. https://www.ebay.com/itm/10pcs-685-5x11x4mm-Open-Miniature-Bearings-ball-Mini-Hand-Bearing-Spinner/162470235664?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 RC Mart in Hong Kong sells Yeah Racing bearings. You'd have to pay more for shipping. But Yeah Racing's rubber-shielded bearings should be equal to or better than most packaged stuff they sell for individual kits. https://www.rcmart.com/yeah-racing-rc-ptfe-bearing-5x11x4mm-10pcs-yb6014b-s10-00001611 2 Share this post Link to post Share on other sites
Jaytbrat 2 Posted May 27, 2020 I've ended up with 8 Mr bear so will see how I get on with these..thanx for the tips. 1 Share this post Link to post Share on other sites
Juggular 4964 Posted May 27, 2020 lol... Mr. Bear is a clever name for bearings! I like it! Share this post Link to post Share on other sites