I liked vacuums from at least 4 yrs. old. Then cars and other appliances. Maybe it was the different aesthetic designs. I often asked people which brands and types they had. I spotted an aunts seafoam Electrolux "G" behind her sofa, and asked where's the hose? It's a secret I was told.
Wards...
It doesn't have ball bearings, only sleeves. You can try some sewing machine oil. or penetrating oil spray. I have a mitre saw that does it too. It is still running after having the noise for years.
Some models which I am familiar with are later than say 1970? Harmony, Ingenio, Dimbo, Slimline, Dolphin. Some may just have a different name per their market country, like the Ultra Silencer?
Yes, I think a few Kenmore canisters were by Sanyo. I like the Japanese Panasonics too. I think one was used as a prop in the home of Simon and Wai Tung in the 1993 "Wedding Banquet" movie. Unless it was a Haitachi but it was large and white with dark brown or black bumper strips, chrome wands...
Depends on the carpeting,. I find that wooden brush rolls get threads around them that grind in lines. The Vibragroomers all keep the dense pile carpeting looking good.
My 10.5 amp 2 stage Lamb motor never got that loud. Just some minor squealing you only heard when it shut off. Then one day it just seized up. The original brushes were still very good. It did last 28 years.
I have a Plastiflex cv electric gas pump handle hose. When I use my Eureka Vibragroomer power head from the 1279/89 canisters, it's a bit too short for me. The Eureka steel grip is a few inches longer.
I saw a funny reel posted yesterday by Owen Perkins from the Central VAC threads.He installs MD mostly. They call them stick vacs because when the battery dies, or parts aren't available, or they cost more than half of the price as new, you stick it!
Eureka steel canister vac electric hoses. The hand grips had no swivels. This made the hoses tear faster. The later crush proof hose was better, but still no swivels.
I think the Hoover type wire reinforced hose was more flexible even without swivels. I don't like the final Eureka hoses that...