SEW-EURODRIVE Products: Accessories and options for gear units / gearmotors

Products

TorqLOC^® hollow shaft mounting system

Optional for parallel shaft helical, helical-bevel and helical-worm gear units. The TorqLOC^® hollow shaft mounting system is used for achieving a non-positive connection between the customer's shaft and the hollow shaft in the gear unit. As a result, the TorqLOC^® hollow shaft mounting system is an alternative to the existing hollow shaft with shrink disk, hollow shaft with key and the splined hollow shaft. The TorqLOC^® hollow shaft mounting system provides the advantages of easy installation and de-installation, and saving costs.

OS surface protection

Instead of the standard surface protection, motors and gear units have the option of surface protection OS1 to OS4. We can also carry out special procedure Z in addition to OS1 to OS4. Special procedure Z means that large surface recesses are sprayed with a rubber filling prior to coating.

Technical data
Surface protection	Coating structure	Coating thickness [µm] ([mils])	Suitable for
Standard	1 × Dip primer 1 × Single-component top coat	Approx. 50 to 70 (2.0 to 2.8)	Normal ambient conditions Relative humidity below 90% Surface temperature up to 120 °C (248 °F) Corrosivity category C1 (German industrial standard DIN EN ISO 12 944-2)
OS1	1 × Dip primer 1 × Two-component base coat 1 × Two-component top coat	Approx. 120 to 150 (4.72 to 5.91)	Low environmental impact Relative humidity max. 95% Surface temperature up to 120 °C (248 °F) Corrosivity category C2 (German industrial standard DIN EN ISO 12 944-2)
OS2	1 × Dip primer 2 × Two-component base coat 1 × Two-component top coat	Approx. 170 to 210 (6.69 to 8.27)	Medium environmental impact Relative humidity max. 100% Surface temperature up to 120 °C (248 °F) Corrosivity category C3 (German Industrial Standard DIN EN ISO 12 944-2)
OS3	1 × Dip primer 2 × Two-component base coat 2 × Two-component top coat	Approx. 220 to 270 (8.66 to 10.6)	High environmental impact Relative humidity max. 100% Surface temperature up to 120 °C (248 °F) Corrosivity category C4 (German industrial standard DIN EN ISO 12 944-2)
OS4	1 × Dip primer 2 × Two-component base coat 2 × Two-component top coat	Approx. 280 to 330 (11.0 to 13.0)	Very high environmental impact Relative humidity max. 100% Surface temperature up to 120 °C (248 °F) Corrosivity category C5 (German industrial standard DIN EN ISO 12 944-2)

	Dip primer
	One-component top coat (water-based)
	Two-component base coat (polyurethane)
	Two-component base coat (epoxy resin combination)
	Two-component top coat (polyurethane)