What are the dimensions of a Type C V-belt pulley groove?
3 Answers
C-type V-belt cross-section dimensions are 22mm in top width and 13.5mm in thickness. The minimum diameter for a standard C-type pulley is 200mm. The groove angle for C-type pulleys is 34 degrees when the pulley diameter ranges from 200mm to 250mm, 36 degrees for 250mm to 315mm, and 38 degrees for diameters exceeding 315mm. Relevant information about V-belts: 1. Classification: V-belts come in two types - special cord structure and rope core structure. Rope core V-belts are easy to manufacture with moderate tensile strength and low cost. Special cord V-belts offer better flexibility, higher strength, and are suitable for high-speed applications. 2. Advantages: Simple structure with low manufacturing and installation precision requirements, easy maintenance. Provides smooth transmission with low noise and vibration damping capabilities.
The standard width of a Type C V-belt pulley groove is approximately half an inch (12.7 mm), with a fixed angle of 40 degrees. This standard configuration ensures stable belt engagement and power transmission. The depth is typically around 0.3 inches. Different vehicle models and manufacturers may make slight adjustments. When measuring the pulley groove, I use calipers to ensure precision. Size deviations, such as excessive width, can easily cause belt slippage or detachment. If not addressed promptly, this can affect the air conditioning or engine cooling, increasing repair costs. In regular maintenance, I focus on keeping the pulley groove smooth, free from wear or rust, which can extend belt life, reduce noise, and ensure smoother driving. Periodic size checks are also a handy tip for preventing issues.
In the workshop, I often repair C-type pulley grooves. The key dimensions to check are the width (about 0.53 inches), angle (40 degrees), and depth (typically 0.3 inches). These numbers are standard, but in practice, I've found that when pulley grooves rust or deform, the dimensions become uncontrollable, leading to severe belt noise, even jamming, which affects safety. During measurement, I recommend using professional tools. If the width exceeds 0.6 inches, the pulley groove must be replaced. Accurate groove dimensions ensure even belt pressure and avoid excessive wear. For example, slippage can cause the cooling fan to fail, leading to engine overheating. So I remind car owners to check these dimensions during maintenance and not overlook small issues.
