
Timing belt Optibelt 300 / H 3305 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
OPTIBELT 300 / H 3305 AFX belongs to timing 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 300 / H 3305 AFX and any equivalents.
The Optibelt 300 / H 3305 AFX is an Alpha Flex timing belt with an H profile and a length of 8394.7 mm. The H profile and this extended length are the key figures to match when selecting a synchronous belt for your drive.
The H profile defines the tooth geometry that must engage the pulleys, while the 8394.7 mm length sets the center distance and take-up range for the drive. Both values are stated in the belt marking, so they are the first data points to confirm against your existing belt or drive documentation.
When you request a quote, send the complete part number 300 / H 3305 AFX and reference the H profile and 8394.7 mm length. Our team can confirm the belt or suggest an equivalent based on those figures. If you are replacing a belt on a drive where the old marking is worn, measure the length and count the teeth to verify the H profile before ordering.
Dimensions
- Profile
- H
- Length
- 8394.7mm
Frequently asked questions
- What do the H profile and 8394.7 mm length mean for my drive?
- The H profile is the tooth shape that must match your pulleys. The 8394.7 mm length is the belt's datum length, which determines how the belt fits the drive's center distance. Both must match the belt you are replacing.
- How do I confirm this is the right belt for my application?
- Check the marking on the back of your existing belt for the H profile and the 8394.7 mm length. If the marking is unreadable, measure the outside length and verify the tooth profile against the pulleys.
- What information should I send to request a quote?
- Send the full part number 300 / H 3305 AFX, along with the H profile and 8394.7 mm length. If you have the old belt, include a photo of the back marking so we can confirm the details.

