Casters:
Casters are used in very low speeds or static applications especially in industrial applications, in home appliance vehicles, and in atmospheric external environments.

There are two main types of casters that are suited to the necessary purpose.

1- Swivel casters(turns on its own vertical axis);
Swivel casters are made from rotation pincers and a wheel attached to its axis.  It is able to rotate or turn both radially and axially.  Its made on a flat surface wiath ability to rotate axially with the load it is supposed to carry.

2- Fixed casters(Doesn’t turn on its vertical axis);
Its made on a stationary pincers wheel and can only turn radially.

Views in Selecting casters:
The most important thing in selecting casters is its easy maneuverability and it being economical. 

Some application examples are: 1. Carrying Load,  2. Surface properties( soil, cement,ceramic etc.),  3. Manual or Engine Powerment,  4. Environmet properties (dusty, moist, high temperature gradients) and  quality requirements for its intended sector ( chemistry,medicine etc).

Two swivel, two fixed casters	Four swivel, two fixed casters
Sensitive guidance control.	Good for heavy and high volume loads with good guidance control.

 CODING SYSTEM:

ADB Casting iron, bastion casters. ADR Casting iron, ball bearing casters. ALB Iron sheet hub, bastion, heavy type casters. AYB Casters that can resist the heat temperature of 250°C DUR Casting covered, polyurethane, ballnearing casters. KPT Complete plastic casters. MAB Polyproplene, heavy duty, bastion casters. MEB Polyproplene,hub covered with thermo plastic casters. MHB Polyproplene, light duty, bastion casters. MHK Polyproplene, light duty, roller bearing casters. MLB Polyproplene hub, rubber, self-bastioned casters.

MMB Polypropylene casters. MMLB Polypropylene hub, covered with flexible rubber casters.. MMLK Polypropylene hub, covered with flexible rubber roler bearing casters. PAB Polyamide, heavy duty, bastion casters. PAR Polyamide, heavy duty, ball bearing casters. PHB Polyamide, light duty, bastion casters. PHK Polyamide, light duty, roller bearing casters. PUB Polyamide, covered with polyuretmane, bastion casters. PUR Polyamide, covered with polyuretmane, ball bearing casters. SLB Sheet iron hub, rubber, polyamide, bastion casters.

	D	D: Whell remembrance diameter. It is also valued as the maximum diameter.   In our products usual diameters include 50,55,80,100,125,150,200.
	T	It is the maximum width in the wheel ring.  Our general widths include 20,25,30,35,37.5,40,45 and 50.
	d	d:Reel hole diameter
	T1	T1: Hub width, tire bastion hole length.  It is the width from the outermost layer to outer layer.
	h	Full height is the casters maximum height from the ground. In surface models, it is the area of the surface plane and  in models with pims it is the length between the pim and the surface.
	F	Axial loss; is the distance between the wheel rotation center and pincer rotation center in Swivel casters.
	AxB	AxB Circular Tray dimension is the distance between the exterior perimeter of the surface.
	axb	Tray hole distance is the distances between the hole centers.
	d1	Tray Hole Diameter is sometimes oval and sometimes circular.  In oval holes this is the measurement of the hole width.
	d2	Pin diameter.
	L	Pin height.
	d3	Central hole diameter.
	r	Wheel rotation radius; is the maximum circular radius made by the rotation of pincer hole center about the outermost point.
		Products own weight.  This is mostly used in transportations.
		Loading capacity; is the products maximum load that it can carry under dynamic conditions.