Precision linear ball bearings with low friction.
From size 21511-122202, the bearings are fitted with wipers on both sides.
Recommended tolerances:
Shaft: h6
Housing: H6
The specified load ratings apply for hardened and ground shafts.
Characteristic(s)
Material:
Housing, plastic.
Raceway, stainless steel 1.4034.
Balls, stainless steel 1.4125.
Temperature range:
-40 °C to +60 °C.