| Certification: | CE, ISO |
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| Pulley Sizes: | Type A |
| Manufacturing Process: | Casting |
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V belt pulley specifications
V-belt pulleys are a type of pulley specifically designed to work with V-belts for power transmission. V-belts are flexible, trapezoidal-shaped belts that fit into the groove of the V-belt pulley, creating a frictional connection to transfer power between the pulley and the driven shaft. Here's a closer look at V-belt pulleys:
Design and Construction: V-belt pulleys have a V-shaped groove on their circumference that matches the cross-sectional shape of the V-belt. The groove is typically deeper at the center and shallower towards the edges to ensure proper belt engagement and prevent slippage. V-belt pulleys are commonly made of materials such as cast iron, steel, or aluminum, depending on the application and load requirements.
Groove Types: V-belt pulleys can have different groove profiles to match the specific type and size of V-belts being used. The most common groove profiles are Type A, Type B, Type C, and Type D. Each groove type corresponds to a specific belt size and angle. It is important to select the correct groove type to ensure proper belt fit and power transmission.
Belt Size and Compatibility: V-belt pulleys are available in various sizes and configurations to accommodate different belt widths and lengths. When selecting a V-belt pulley, it is important to consider the compatible belt size and ensure that the pulley's groove dimensions match the belt specifications. Proper alignment and fit between the belt and pulley are crucial for efficient power transmission.
Speed Ratios: V-belt pulleys are used to achieve speed ratios between the driving and driven shafts. By varying the sizes of the pulleys and the number of grooves, different speed ratios can be achieved. The speed ratio is determined by the pulley diameters and is calculated by dividing the driven pulley diameter by the driving pulley diameter.
Power Transmission: V-belt pulleys provide reliable power transmission in various applications, including industrial machinery, automotive systems, HVAC systems, and agricultural equipment. The V-belts wrap around the pulley's groove, creating a frictional grip. As the driving pulley rotates, it transfers rotational motion to the driven pulley through the frictional connection between the belt and pulley.
Maintenance: Regular maintenance of V-belt pulleys is important to ensure optimal performance and longevity. This includes periodic inspection for wear and damage, proper tensioning of the V-belts, and occasional cleaning to remove dirt or debris that can affect belt grip and pulley performance. Over time, V-belts may stretch or wear out and may need to be replaced to maintain efficient power transmission.
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European standards :
a) V-belt pulley for taper bushing: SPZ, SPA, SPB, SPC, up to 10 grooves
b) Adjustable speed V-belt pulleys and variable speed pulleys
c) Flat belt pulleys and conveyor belt pulleys
· American standard:
a) Sheaves for taper bushing: 3V, 5V, 8V
b) Sheaves for QD bushings: 3V, 5V, 8V
c) Sheaves for split taper bushing: 3V, 5V, 8V
d) Sheaves for 3L, 4L or A, and 5L or B belts: AK, AKH,2AK, 2AKH, BK, BKH,2BK, 2BKH, 3BK
e) Adjustable sheaves: poly V-pulley, multi-pitch H, L, J, K and M
· Bore: pilot bore, finish bore, taper bore, bore for QD bushing
- Parts can be made according to drawings and/or samples
· we can offer the rang size diameter 62MM~2000MM
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