VEX-High-Strength-Shaft-Bearings-VEX-276-3521-P-These-VEX-High-Strength-Shaft-Bearings-are-a-larger-version-of-the-Bearing-Flat-that-is-designed-for-the-standard-shafts-P-P-VEX-2-3-&-4in-high-strength-shafts-70-6379-70-6380-&-70-6382-are-actually-designed-about-1mm-shorter-than-their-respective-2-3-&-4-inch-8-32-Standoffs-This-means-that-if-you-use-standoffs-to-hold-together-two-pieces-of-metal-the-high-strength-shaft-can-rest-on-the-high-strength-bearings-attached-to-thos