Tooling and Checking Balls

Tooling and Checking BallsTooling and Checking Balls (Construction Balls)
ITI manufactures and stocks three standard types of Tooling Balls (Type 224 Tooling Balls, Type 448 Checking Balls, Type 348 Checking Balls), available singly or in any quantities, in diameters of 1/4″ through 1″ in 1/8″ increments. Balls and shanks are made of 440-C stainless steel hardened to 55-58 Rc, and are also available in tungsten carbide.

They are assembled by a propriety technique that retains the initial high precision and finish of the balls. The weld between ball and shank is made somewhat fragile so that the ball will drop off if subjected to an unusually heavy lateral force.

This prevents setup and inspection errors that might occur because of accidental bending of the shank. However, balls of special construction for withstanding heavy loads or shock are available on request. A variety of other configurations, materials, sizes and tolerances can be furnished on order.

Tooling


Type 224 Tooling Balls

Ideal as permanent components of jigs and fixtures. Shank press fits into hole. Download the ITI Ball – Type 224 Tooling Ball diagram (PDF).

ITI Ball - type 224 tooling balls (construction balls)

Order #
A (inches) A (mm) B (inches) B (mm) C (inches) C (mm)
224-4 0.2500 6.3500 0.5600 14.2240 0.1247 3.1674
224-6 0.3750 9.5250 0.7500 19.0500 0.1875 4.7625
224-8 0.5000 12.7000 0.9400 23.8760 0.2497 6.3424
224-10 0.6250 15.8750 1.0600 26.9240 0.3122 7.9299
224-12 0.0750 1.9050 1.2500 31.7500 0.3747 9.5174
224-16 1.0000 25.4000 1.6200 41.1480 0.4997 12.6924

 


Type 448 Checking Balls

Include reference shoulder for positive positioning and re-positioning (448-2 with tungsten carbide ball only). Download the ITI Ball – Type 448 Checking Ball diagram (PDF).

ITI Ball - type 448 checking balls (construction balls)

Order #
A (inches) A (mm) B (inches) B (mm) C (inches) C (mm) D (inches) D (mm)
448-2 0.1250 3.1750 0.0938 2.3825 0.3750 9.5250 0.1255 3.1877
448-4 0.2500 6.3500 0.2000 5.0800 0.5600 14.2240 0.1247 3.1674
448-6 0.3750 9.5250 0.3000 7.6200 0.7500 19.0500 0.1872 4.7549
448-8 0.5000 12.7000 0.4000 10.1600 0.9400 23.8760 0.2497 6.3424
448-10 0.6250 15.8750 0.4500 11.4300 1.0600 26.9240 0.3122 7.9299
448-12 0.7500 19.0500 0.5000 12.7000 1.2500 31.7500 0.3747 9.5174
448-14 0.8750 22.2250 0.6000 15.2400 1.4400 36.5760 0.4372 11.1049
448-16 1.0000 25.4000 0.7000 17.7800 1.6200 41.1480 0.0500 1.2692
448 12mm 0.4724 12.0000 0.3830 9.7282 0.7770 19.7358 0.2362 5.9995
448 20mm 0.7874 20.0000 0.5120 13.0048 1.2990 32.9946 0.3937 10.0000

 


Type 348 Checking Balls

Type 348 checking may be pulled into a hole or bushing from below without applying pressure on the ball (accomplished by using a cap screw in the tapped hole in the shank). Note: eccentricity, ball to shank, 1.0002 TIR max. Download the ITI Ball – Type 348 Checking Ball diagram (PDF).

 

ITI Ball - type 348 checking balls (construction balls)

Order # A (inches) A (mm)
348-8 0.5000 12.7000