🔵 G25 100 Balls: High-quality Chrome Steel Bearings Review

This product is advertised as suitable for industrial and scientific use, but it falls short in both categories. Thanks to my knowledge gained in practice, I can confidently say that these bearings are not up to par with industry standards. They are flimsy and have a short lifespan, which can cause serious damage to machinery. The only positive aspect is the affordable price, but in this case, you get what you pay for. Save yourself the hassle and invest in a higher quality product.

The description says: 6.00mm / 0.23622in 0.886g What I have: 5.96mm / 0.234in 0.881g / 10 grains I wonder if they belong to class 25 at all, probably NO since the G25 tolerance is +/- 0.0025 and they differ by -0.0400. The weight also confirms that they are in fact not 6.00 +/- 0.0025 and are 0.005g lighter.

I needed A 6mm ball bearing to mount the caster wheel on an old 2 1/4 ton hydraulic jack. Have you ever tried to buy just ONE ball bearing? Yes, I got a lot of strange looks. But it was a great price for a package of 200 precision chrome steel ball bearings! My original roller bearings measured 5.94mm, these new bearings measured 5.99mm with a precision calibrated Mitutoyo caliper, which is within caliper error and more than close enough to what I need them for. Now my rollers work perfectly…