Types

• Type A: Without handle
• Type D: With revolving handle

Identification no.

• No. 1: With bearing bushing

• No. 2: With centering ring

Wheel body

Aluminum

• Hub machined

• Rim

• Turned on all sides

• Highly-polished

Coupling elements

Steel

• Nitrided

• Bearing surface ground resp. PTFE-coated

• Bearing flange blackened

Revolving handle GN 598

Plastic, phenolic resin (PF)

• Black, shiny finish

• Spindle steel

• Zinc plated, blue passivated