HD

TRANSMISSION BELTS

O-Rings are widely used as low-power transmission belts. They present numerous advantages in comparison to the normal belts such as:

COMPOUNDS FOR TRANSMISSION BELTS

	EPM80	CR70	MVQ70	PUR95
Hardness Sh.A	80	70	70	95
Compatible to: Oil and mineral fats Siliconic lubricants Water Ozone	non compatible best best best	good best good good	fair non compatible good best	best best non compatible best
Wear resistance Behaviour under strain	good good	good fair	fair good	best best
Max. operational temperature	80°C	80°C	100°C	55°C
Loss of pre-load 0,8 N/mm2 dynamic conditions	13%	14%	21%	19%
Loss of pre-load in static conditions 0,8 N/mm2 at 24 °C at 65 °C at 80 °C	14% 18% 20%	14% 19% 22%	2% 5% 5%	21% 19% 36%