Greaseless ball bearings: A revolutionary spin on a design that's been around for ages

While the ball bearing might be among Leonardo Da Vinci's less celebrated inventions, it's arguably one of his most important. Though it was initially designed as part of his failed helicopter invention, it has stood the test of time – there are ball bearings of a similar design to Leonardo's in just about every moving machine.

Ball bearing - New World Encyclopedia

Greaseless bearings that eliminate sliding friction #DigInfo

Greaseless ball bearings: A revolutionary spin on a design that's been around for ages

The Hand Forged Knife - Karl Schroen - 1984 (S), PDF, Steel

Investigation on heat dissipation characteristic of ball bearing cage and inside cavity at ultra high rotation speed - ScienceDirect

JANITORIAL/MAINTENANCE - Howard Supply Company

NTN Bearing 1206 Double Row Self-Aligning Radial Ball Bearing, Normal Clearance, Standard Cage, 30 Mm Bore ID, 62 Mm OD, 16 Mm Width, Open

(4 Pack) 532124959 124959 HD Switch Front Wheel Bearing Bushing to Bearing Conversion Kit fits Husqvarna, AYP, Poulan, Jonsered, Craftsman Sears Lawn Mower Garden Tractors : Patio, Lawn & Garden

The Bearing Revolution - BEARING NEWS