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 definitely too small to note and the pulley appears to be spinning without cause, creating a striking effect. Pulley rotations were noticed for a variety of pulleys and cords; almost any such program will work. The velocity and direction of the rotation depends upon the various physical parameters of the system: vibration frequency and amplitude, cord stress, and the radius and moment of inertia of the pulley.
Welded pulley:
While welded pulley is welded and machined parts items into a whole, the machining and material cost is high.
Spinning pulley:
Spinning pulley adopted stamping and spinning technology, through the production process, it really is formed simply by extruding the complete part material. These pulleys possess high production efficiency. Not merely can it save raw materials and cost, but also can be utilized longer because of its better wear-resisting and rust-proof. Now this pulley is definitely well enjoyed in the high-end marketplace in the auto sector, kitchen appliances industry, machinery sector ETC. We are haapy that you demand our mature and professional spinning technology.
V-belt Spinning Pulley, Steel Pulley, Split Pulley for Lawn Mower
Product Details
Model Number:P100-42 10016
Brand Name:Renchi
Origin:China (mainland)
Key Specifications/Special Features:
V-belt spinning pulley metal pulley split pulley for lawn mower
Material: incredibly hot rolled steel plate
Thickness: 
4.0mm
Out diameter: 122mm
Weight: 0.390kg
V-Belt type: SPB
Surface area 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 Grab clamp with spinning pulley
The Ever-powerC339JS Grab Clamp with Spinning Pulley is flexible and fast, and thanks to its pincer jaw design can be affixed to a wider variety of round or sq . pipes, beams and bars than traditional clamps. It has a push-button lock for extra protection and 3.9″ pulley for raising drapes or other articles in TV, video and photographic studios and theaters. The Get Clamp will hold up to 331 lb.
PRODUCT HIGHLIGHTS
– Zinc-Plated Steel Construction
– 3.9″ Pulley
– Load Capability: 331 lb / 150 kg
Ever-power Get 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 designed to be installed on an array of beams, pipes and pubs, whether round, sq ., or rectangular in section. It needs no adapter – just open and clamp it.