What Is a Gear Puller tool? | DNT Auto Tools FAQ

A gear puller is a tool that is specially designed to pull gears from shafts. There are many different styles of gear puller designs, all intended to fulfill a particular purpose. Some designs use jaws to grip the gear while others use bolts to attach the it directly to the gear. One thing the styles have in common is that all types of pullers use a threaded rod to press against the gear's shaft and apply pressure until it comes loose. No matter which design is utilized, the proper puller makes the removal of a gear an easier task.

Often used on small gears in very tight quarters, the two-jaw puller is the puller of choice. Having two arms or jaws that grasp the gear as the threaded rod comes in contact with the gear's mounting shaft, the rod is tightened, which applies pressure to the two arms or jaws as they pull the gear from the shaft. Often, in the case of a stubborn gear, the pressure must be applied to the gear by tightening the puller and then leaving it to sit under the pressure for a few minutes. Gradually tightening the gear puller will result in the release and removal of the gear.

Perhaps the easiest of all of the jaw type pullersis the three-jaw gear puller. By using three jaws, the puller is better equipped to apply even pulling pressure around the gear as the threaded rod is tightened against the gear's shaft. While best used on larger gears in open areas with easy access, this type of gear puller can also need the occasional aid in removing a very tight gear. In the instance that the puller is unable to pull the gear from its shaft, the threaded rod can be tightened and then hit on the head with a hammer. This will usually loosen the tightest gears with one attempt.

Gear pullers are tools used to detach gears from their shafts.

The bolt on a gear puller is used on gears such as an automobile engine harmonic balancer and even steering wheels where the gear has threaded bolt holes around the perimeter. The puller is attached to the gear with bolts and the threaded center rod is tightened against the gear's shaft. As pressure is applied the gear will pop loose from its shaft and can be easily removed. When using any gear puller, it is important to keep the puller as close to level with the gear as possible to assure a straight pull.

What Is a Gear Puller tool? | DNT Auto Tools FAQ: what is gear puller tool set, from leading china puller manufacturer

What are bearing pullers made of? | DNT Auto Tools FAQ

DNT Tools is professional and leading tool manufacturer from China. own drop forgging workshop. offer custom new tools service and product forgging service,OEM Service

All puller from DNT Tools is made of Alloy Steel, and drop forgging product to ensure high quality and surface. suitable to top market business in Europe and american 

Material: GB 40CR Alloy steel(SAE-AISI 5140 steel )


Chemical composition of 40Cr steel

 

rade	C	Si	Mn	Cr	Ni(≤)	Cu(≤)	P(≤)	S(≤)
40Cr	0.37-0.44	0.17-0.37	0.5-0.8	0.8-1.0	0.3	0.03	0.035	0.035

Physical property of 40Cr



Sample blank size (mm):25


The first quenching heating temperature (ºC):850; coolant: Oil


Second quenching heating temperature (ºC):-


Tempering heating temperature (ºC):520;


Tensile strength (σb/MPa): ≥980


The yield point (σs/MPa): ≥785


Elongation (δ5/%): ≥9


Section shrinkage (ψ/%): ≥45


gear puller
40CR alloy steel is used to produce bearing pullers because it provides them with a very strong structure that is able to withstand wear.


Bearing pullers need to be able to remove bearings, gears or pulleys without becoming easily worn or damaged.


2. Heat Treated

heat treated



Bearing pullers are heat treated for increased wear and strength.


3. Chrome plated



Chrome plated


The bearing pullers are chrome plated to resist corrosion. Corrosion is when iron reacts with oxygen and forms a reddish-brown oxide that we know as rust. When steel corrodes it deteriorates and eventually decays over time.

What are bearing pullers made of? | DNT Auto Tools FAQ: What are bearing pullers made of?

What are bearing pulllers | DNT Auto Tools FAQ

Bearing pullers are used to remove parts such as bearings, gears or pulleys from a shaft.

They have legs which circle around the back or inside of a part, and a forcing screw which centres up against the end of the shaft. As the forcing screw is tightened, the arms pull the part towards the end of the shaft.

A bearing puller is used to remove bearings, gears or pulleys, which are components that are in almost constant use. Because of this, they become worn or even damaged and need to be replaced.

The puller’s specially-designed claw legs fit comfortably around or inside these components and a forcing screw applies force to make removal simple, with minimal effort for the user.

Bearings

A bearing is a part of a machine (such as an engine) that compels relative motion. Put simply, this means that a bearing rotates at the same speed as the rotating component; this helps to reduce friction between the moving parts.

Gears

A gear is a wheel containing teeth that work with others to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle) and the speed of the driven parts (the wheels).

Pulleys

A pulley is a grooved wheel attached to a crankshaft. The pulley is connected by a belt that directs power to all the systems in an engine.

This is a two legged bearing puller removing a pulley from a shaft.

What are bearing pulllers | DNT Auto Tools FAQ: What are bearing pulllers,this article will tell detail of bearing puller from china original searcing tools manufacturer