Best Spring loaded Pulleys

RONSTAN RF51100 Series 50 AP Block Universal Head Single Pulley, 3310 Lbs Load Capacity, 2\ Sheave

Pulleys for fibrous rope sizes 1/4" to 1/2"..
Series 50 all purpose pulleys are used in multiple industrial and OEM application that require an efficient and durable product.
Load ratings for these pulleys are exceptionally high for their size, starting at 1650lb for the all purpose single.
Becket pins are removable so lines can be spliced prior to fitting, and are ingeniously locked into position without the use of clevis pins, split rings or tools.
Shackles have slotted pins to avoid fouling lines.

COMPLETE FITNESS SET: The single set includes 1x steel pulley, 1x steel cable, 1x handle strap, 2x carabiners and 1x loading pin strap, providing great versatility for your home gyms, training studios or various workout environments.
ERGONOMIC STEEL PULLEYS: Both sets feature high quality steel pulleys that are durable and highly practical with internal bearings for smoothness and noise reduction and attached carabiners that have 360-degree rotation.
HIGH WEIGHT CAPACITY: Capable of supporting up to an amazing 400lbs of weight with the loading pin strap, great for both intermediate and advanced users alike. You will feel extra safe while working out with as many weights as you can.
OLYMPIC WEIGHT PLATES COMPATIBLE: The 18” loading strap is durable and high quality, designed to fit perfectly with 2” Olympic weight plates.
MULTI-USAGE: Gourd buckle design gives you a wide variety of options in how you want to train, and what specific cable exercises you can incorporate with the sets of tools available.
Included Components: pulley, loading pin, steel cable, hand strap.

【Precision Manufacturing】: The pure steel body creates a metallic texture, and every part of it embodies the quality of heavy processing..
【Selected A3 steel】: It is made of high-quality solid A3 steel, so it not only has high strength and hardness but also has strong corrosion resistance. The selected material is only to give you better service..
【Double Pulleys Design】: The double pulleys design realizes bi-directional adjustment, making opening and closing easy and smooth..
【Excellent Load-bearing Capacity】: Equipped with an M12 bolt, and the double bearings make its load-bearing capacity stronger, these track roller wheels can carry about 400pounds..
【Excellent Performance】: The metal material plus the widened caster design increases its performance stability and contact area with the ground, making it able to slide smoothly on hard surfaces. This will also not damage your door..

Cable and pulley replacement kit are made of steel,zinc plated finish,aluminum compression sleeves, durable, sturdiness and long-lasting use..
Heavy duty pulleys with 9-ball bearing for quieter and smoother movement for front or rear,the 2.6mm x 158 in cables with 7 x 7 strand has a rating of 1200 lbs ..
Cable pulley replacement kit for torsion spring doors and extension spring door .It's perfect for do it yourself garage door repair and maintenance..
Package include 4 Pcs heavy duty 3 in pulleys,2 Pcs 2.6mm x 158 in extension spring safety cables,2 Pcs 2-1/2" S hooks ,8 Pcs compression sleeves ,2 Pcs cable clamps ..
Home Master Hardware Lifetime Warranty - If anything ever goes wrong with your cable and pulley replacement kit, please contact us,we will replace them with new ones or full refund ,and provide best service .(lifetime tech support, 18 month replacement).

The patent pending ox block replaces standard handline blocks, parted blocks and various snatch blocks.
Has greater walls than blocks of similar size.
When configured with optional pulleys, the ox block can be used to create a 4: 1, 5: 1 or 6: 1 mechanical advantage reducing the amount of force needed to lift heavy loads.
The advantage of the pulleys used by Buckingham is the swivel side plate that allows for quick and easy rope installation without removing the pulley from the connecting device.

High quality materials: Our pulley wheel made of 304 stainless steel, Rugged nylon sheave ,wear-resistant, rust-proof and durable, suitable for all types of wet and difficult outdoor environments..
Effort-saving Design : The fixed pulley prevents the rope from twisting, The smooth roller ensures a good movement of the rope..
Quiet Pulley Wheel:Our pulley wheel uses flexible and smooth wheels can reduce the noise and would not affect surrounding life at all..
Easy to Use : Flexible sliding pulleys that can withstand heavy loads.
Wide Applications : Rotating pulleys can be used with indoor or outdoor ropes or cords for flexible sliding..

【Function】This 3in garage door pulley kit designed to repair or replace damaged parts of your old, worn, noisy and jumping doors. Provide a quiet, smooth and pleasant door opening/closing..
【Compatible】The 3in sheave pulley is 3/8” bore and 3/8” cable groove, which adapt to most commonly garage doors and accept max 5/16” diameter pulling cable or straps..
【Valued Package】The package include 4 pulleys and 2 clevis forks, this can be used as 2 fixed pulleys plus 2 sliding clevis wheel pulleys, fulfill your various demand. Coming with 4 screws and nuts, saving your time to look for from drawer or corner..
【High Quality】The garage door pulley system is heavy duty, 200lb load rating for doors up to 400lb. Durable steel construction, center race with 9 ball bearings and pre-lubricated in factory for smooth sliding..
【Kindly Reminder】Professional installation is recommended. If DIY, please remember wearing safety guard always, using the proper tools and install properly..

Advanced, high-performance, synthetic lubricant providing excellent protection for chains, open gears and exposed metal surfaces subject to severe loading.
Sprays on like a liquid to penetrate deep, sets up like a grease for outstanding load-bearing protection.
Applications : Drive chains, open gears, hoists, winches, pulleys, fork lifts, rollers, garage doors, bushings, seals, O-rings, and wire ropes.

10 pcs of Shower Door Rollers Wheels Runner Pulleys Roller.
Plastic coated small pulley,Wide application.
With Bearings Shower Door Replacement Rollers.
This item is ordinary precision, adaptation to low speed, low load applications,such as :Hardware accessories, doors, glass doors, aluminum doors and windows, shower pulleys and drawers, etc..
Differences in color maybe caused by some other reasons such as color reflection in the monitor, lighting, background etc. However, if you believe that the item recieved is in wrong color, please contact us to see if a return or refund is possible..