gesrancamdianina.netlify.com

In this article we will see the basic difference between slot , holes, groove, and keyways.

• Shaft Keyway Slot Tool
• Shaft Keyway Specs
• Shaft Keyway Size Chart
• Shaft Keyway Slot Bearings
• Shaft Keyway Types
• Shaft Keyway Tolerance Chart
• Shaft Keyway Slot Bearing

1. Hole: circular cutout, either through the material or to a blind depth.

Types of Hole :

They are different types of holes that are mentioned below.

1.Simple Hole
2.Counter board
3.counter sunk
4.Tapered
5.counter drilled.

2. Slot or Slotted Holes: an elongated hole. It is stretched in one direction but still has full radii on the ends. A slot is cut into a flat plate or normal to the axis of a cylinder.

Corresponding keyways for Metric shafts are listed below in Table 2. The common specification dimension, Key Size, is highlighted. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm). From To Width (W) Depth (h) Width (W) Depth (T) 6 8 2 1.0 2 2 9 10 3 1.4 3 3 11 12 4 1.8 4 4. Others require a smooth shaft without a keyway. Keyless bushings apply locking pressure uniformly around the shaft circumference, thereby enabling the use of hollow shafts for weight reduction, as. As nouns the difference between keyway and keyseat is that keyway is a slot into which a precision attachment (a key) is fitted while keyseat is a bed or groove to receive a key which prevents one mechanical part from turning on another. As a verb keyseat is to form a keyseat, as by cutting.

Slot Hole Design Consideration :

Slotted holes are widely used in most sorts of mechanical design. Apply mainly in precisely fine-tuning for uncontrollable dimensions beforehand, alignment accuracy, fixation in certain direction meanwhile keeping slipping free in other directions, and so on. Such as tension device of belt pulley, thermal stress protection for slender bar structural parts or long spindle shafts, alignment accuracy in complex dimension chain, a mechanism for enhancing tolerance, and eliminating accumulated error.

In mechanical design, some principles and factors we should take into account include the shape and travel of the slotted holes, the structural strength affected by the holes, and so on. In actual application, they can be classified into the following types: singleton slotted holes, coupled slotted holes.

Shaft Keyway Slot Tool

Slotted Holes Slotted holes can be dimensioned in several different ways.

Shaft Keyway Specs

a. Center points on the longitudinal axis are located and the radii are indicated with a note.
b. Linear measurements indicate the overall size of the slot and the radii are specified.
c. A note indicates the two linear dimensions of the slot and another note specifies the radii.
Choose the most appropriate technique for sizing the slotted hole. The technique used for sizing the slot determines how the slot is located.

Shaft Keyway Size Chart

See Also: What is Slotting Machine- Principal parts of Slotter Machine

3. Groove:a groove is a cylindrical slot. Grooves are cut around the OD or ID of a cylinder and do not pass through the axis of the cylinder.

You can simply understand that a slot can be through or blind but a groove is always blind.

Shaft Keyway Slot Bearings

In manufacturing or mechanical engineering a groove is a long and narrow indentation built into a material, generally for the purpose of allowing another material or part to move within the groove and be guided by it.

Shaft Keyway Types

Examples include:

• A canal cut in a hard material, usually metal. This canal can be round, oval or an arc in order to receive another component such as a boss, a tongue or a gasket. It can also be on the circumference of a dowel, a bolt, an axle or on the outside or inside of a tube or pipe etc. This canal may receive a circlip an o-ring or a gasket.
• A depression on the entire circumference of a cast or machined wheel, a pulley or sheave. This depression may receive a cable, a rope or a belt.
• A longitudinal channel formed in a hot rolled rail profile such as a grooved rail. This groove is for the flange on a train wheel.

4. Keyway:

In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. The key prevents relative rotation between the two parts and may enable torque transmission. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits. The whole system is called a keyed joint.

Shaft Keyway Tolerance Chart

Read More: Types Of Mechanical Keys- Design Of Keys.

Shaft Keyway Slot Bearing