Maturity of Technology
This time the blades in the moving deck stopped rotating which was signaled by a smell of burning rubber and blue smoke indicating the drive belt was about to fry. Fortunately I managed to disengage the deck in time to save the belt. And after a quick examination I found I could rotate the blades backwards but not in their normal rotating direction. Which most likely meant a broken ball bearing. Once a ball bearing breaks, the debris inside it can block it completely.
It took me a while to disassemble the thing and find the bearing type. And yes the initial diagnosis was spot on - see the photo.
I went to the internet to find a new bearing. And could not believe my eyes when I saw the price: $1. ONE DOLLAR. Single piece, retail. How is this possible at all? Two forged steel rings, a dozen of forged ultra-precise balls, the cage, grease, rubber seals. A cardboard box, shipping to a wholesaler, shipping to a retailer, multiple markups, a web shop plus a digital payment / money transfer.
I know a ball bearing is a very ordinary product by today's standard, but still - there are some raw materials (steel and synthetic lubricants and rubber) plus all the associated services to get this one piece into hands of a retail customer. I have no idea how they make money selling that for one dollar. Honestly - one of the biggest surprises I have seen recently.
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