Section Springs, Spring Wheel and Hook Lock, Do You Know Them

In daily life, the smaller and more precise things often play a key role. If the distinction is not good or the identification is unclear, it will lead to serious consequences. Today we mainly look at three of them.

What is a bolt snap hook lock？

A hook bolt is a curved steel fastener that resembles the top of a question mark. The straight section of the hook bolt is usually threaded, possibly with one or two nuts screwed on. A hook bolt is an anchor bolt commonly used to hang items from ceilings and walls.

Most hook bolts are made of hardened stainless steel so they can hang heavy objects without bending or breaking. Standard hook bolts have an open end for quick and easy removal and reinstallation of items. With a drill, the straight threaded end on the hook bolt is flat and does not taper like the end of the hook screw.

Installing hook bolts usually requires drilling a pilot hole. Hook-bolt fasteners are periodically bolted to wooden studs behind drywall walls or ceilings for added stability. Standard washers and lock washers are often used at the connection between hook bolts and walls to prevent bolts from loosening due to weight and vibration.

Some hook bolts are designed to screw into bolt anchors that expand within the wall to lock the hook in place. By distributing the weight of one heavy load among several different hook bolts, the chance of failure and damage is greatly reduced. Connecting the gap between the heavy hanger and the hook bolt with a sturdy spring reduces direct impact on the fasteners for added strength and safety. Lift chairs often come with mounting hardware, including hook bolts and heavy duty springs.

What is a single spring wheel?

The spring damping wheel belongs to a kind of single spring wheel. Today we mainly introduce the spring damping wheel.

The spring shock-absorbing casters are made of high-quality iron core-wrapped polyurethane wheels, which have good toughness, elasticity and wear resistance. When installed on equipment vehicles, the starting force is small.

The casters use high-quality ball bearings, which can better prevent the wheels from shaking during high-speed traction, greatly reduce noise, and provide a quiet production environment for the production workshop.

The bearing is sealed with good dustproof and anti-winding properties to suit different choices and requirements.

The spring shock-absorbing casters are made of high-quality shock-resistant and shock-resistant springs, using large track diameter bead discs, and the bottom plate, upper and lower bead discs are heat-treated, which can greatly improve the hardness and toughness of the bead discs, make the bead discs rotate more flexibly and easily, and greatly improve the bearing capacity and power performance, to avoid the wheel being damaged by vibration on the uneven ground.

What is a square section spring?

Rectangular springs, also known as die springs, are called rectangular springs because the cross-section of the material is rectangular.

The difference between it and ordinary spring is:

Rectangular springs are generally made of alloys. High-quality chrome-alloy steel die spring products have maximum load-carrying capacity and extended service life. The material uses the rectangular steel wire of United Spring SV9254 chrome-silicon alloy, which is ground flat.

The materials are SAE6150 chrome vanadium steel, INCONEL -750, INCONEL -718, Nimonic 90, Nimonic 90, etc.

Temperature range: -46℃～300℃

Rectangular springs are widely used in stamping dies, metal die-casting dies, plastic dies and other elastic motion precision mechanical equipment, automobiles and other fields. The quality exceeds the customer's requirements, which greatly reduces the production risk caused by the use of inferior springs, improves production efficiency and saves operating costs.

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