A pulley could be caused to rotate by creating longitudinal vibrations in a cord that passes over the pulley. For little amplitudes and high frequencies, the movement of the cord is usually too small to note and the pulley appears to be spinning with no cause, creating a impressive impact. Pulley rotations were observed for a variety of pulleys and cords; nearly any such system will work. The velocity and direction of the rotation depends on the many physical parameters of the system: vibration frequency and amplitude, cord pressure, and the radius and minute of inertia of the pulley.
Welded pulley:
While welded pulley is welded and machined parts parts into a whole, the machining and material cost is high.
Spinning pulley:
Spinning pulley adopted stamping and spinning technology, through the production process, it is formed simply by extruding the complete part materials. These pulleys possess high production efficiency. Not only can it save recycleables and price, but also can be used longer because of its better wear-resisting and rust-proof. Now this pulley is usually well enjoyed in the high-end market in the auto sector, kitchen appliances industry, machinery industry ETC. We are haapy that you request our mature and professional spinning technology.
V-belt Spinning Pulley, Steel Pulley, Split Pulley for Yard Mower
Product Details
Model Number:P100-42 10016
Brand Name:Renchi
Origin:China (mainland)
Key Specifications/Unique Features:
V-belt spinning pulley steel pulley split pulley for yard mower
Material: warm rolled steel plate
Thickness: 4.0mm
Out diameter: 122mm
Weight: 0.390kg
V-Belt type: SPB
Surface treatment: zinc plated yellow
Primary Competitive Advantages:
Prompt Delivery
Quality Approvals
Service
Small Orders Accepted
Origin
Experienced Staff
Form A
Green Product
Price
Ever-power C339SP Get clamp with spinning pulley
The Ever-powerC339JS Grab Clamp with Spinning Pulley is flexible and fast, and thanks to its pincer jaw design could be affixed to a wider variety of round or square pipes, beams and pubs than traditional clamps. It includes a push-switch lock for extra protection and 3.9″ pulley for raising curtains or other articles in TV, video and photographic studios and theaters. The Grab Clamp will endure to 331 lb.
PRODUCT HIGHLIGHTS
– Zinc-Plated Steel Construction
– 3.9″ Pulley
– Load Capability: 331 lb / 150 kg
Ever-power Grab Clamp with 100mm Spinning Pulley
About Ever-powerGrab Clamp
The C339SP is fitted with a 
100mm diameter pulley to provide a quick and robust hanging point for TV and theatre sceneries. The get clamp has been made to be mounted on a wide variety of beams, pipes and pubs, whether round, square, or rectangular in section. It requires no adapter – just open and clamp it.