– Dimensionally interchangeable with SPM types, they guarantee good fluency and higher lightness at cheaper price.
– Housing and cover cap made of pressed metal sheet.-Inner ball race made of machined and hardened steel.
– Version with the big ball made of plastic material:
– to handling particularly gentle surfaces as glass or crystal sheets, wood panels, painted or glazed pressed metal sheets, and so on;*
– to guarantee a good fluency even in presence of light loads, the felt sealing system is not present;*
– usually they are not suitable in applications with the big ball downwards;*
– working temperatures 0°/60°.*