A pulley can be caused to rotate by creating longitudinal vibrations in a cord that passes over the pulley. For small amplitudes and high frequencies, the motion of the cord is certainly too small to notice and the pulley appears to be spinning without cause, creating a impressive impact. Pulley rotations were observed for a variety of pulleys and cords; almost any such program will work. The 
quickness and direction of the rotation depends on the many physical parameters of the machine: vibration frequency and amplitude, cord tension, and the radius and second of inertia of the pulley.
Welded pulley:
While welded pulley is welded and machined parts pieces right into a whole, the machining and materials cost is high.
Spinning pulley:
Spinning pulley adopted stamping and spinning technology, through the production process, it really is formed by extruding the whole part materials. These pulleys possess high production efficiency. Not merely can it save recycleables and cost, but also can be used 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, home 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/Unique Features:
V-belt spinning pulley metal pulley split pulley for yard mower
Material: scorching 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 because of its pincer jaw design can be affixed to a wider variety of round or square pipes, beams and pubs than traditional clamps. It includes a push-key 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 hold up to 331 lb.
PRODUCT HIGHLIGHTS
– Zinc-Plated Steel Construction
– 3.9″ Pulley
– Load Capacity: 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 grab clamp has been made to be installed on a wide range of beams, pipes and pubs, whether round, sq ., or rectangular in section. It requires no adapter – just open and clamp it.
