V-belt Dayco 3VX390

DAYCO 3VX390 belongs to v-belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 3VX390 and any equivalents.

The Dayco 3VX390 is a cogged narrow V-belt in the 3VX profile with a length of 990.6 mm. When replacing a belt, confirm the profile and length on the old belt match these values before ordering. This belt is part of the Dayco Cog wedged industrial belts series.

To match the Dayco 3VX390 to the belt being replaced, read the marking on the back of the old belt. Look for a 3VX profile and a 990.6 mm length. If the old belt is worn or the marking is unreadable, measure the outside length and compare it to 990.6 mm. The 3VX profile is a narrow cross-section, so it will not interchange with a standard V-belt profile.

A cogged narrow V-belt like the 3VX390 is used on drives where a compact, high-capacity belt is required. The cogged construction helps with flexibility and heat dissipation, but the critical selection factors remain the 3VX profile and the 990.6 mm length. If the drive uses multiple belts, replace all belts in the set at the same time to keep tension even across the sheaves.

Before installing the Dayco 3VX390, inspect the sheaves for wear, rust or debris that could damage the new belt. Check that the sheave grooves are clean and the correct width for a 3VX profile. After installation, verify the belt sits properly in the groove and check tension according to the drive manufacturer's recommendations.