Commercial Grade Rubber Balls

Other Ball ProductsRubberMill’s commercial-grade rubber balls are manufactured for a variety of industrial applications. They are produced to RMA Class 3 commercial tolerances in a wide range of specifications and compounds. Our commercial grade balls are used in a number of applications, some of which include shaker screens, clean-out, bumpers, stops & stoppers, mallet tips, aggregate processing, as well as vibration control.

Commercial grade ball products can be made from natural rubber, SBR, butyl, EPDM, nitrile, neoprene, silicone, Viton™, or butadiene – learn more about our material capabilities here.

Diameter of Standard Commercial Grade Balls

Inches Inches (decimal)
5/8 0.625
7/8 0.875
1 1.000
1 1/8 1.125
1 1/4 1.250
1 3/8 1.375
1 1/2 1.500
1 5/8 1.625
1 3/4 1.750
2 2.000
2 1/4 2.250
2 1/2 2.500
2 3/4 2.750
3 3.000

RMA Class A3 Tolerance

Size (in.) Fixed +/– Closed +/–
0.00 – 0.40 .008 .013
0.40 – 0.63 .010 .016
0.63 – 1.00 .013 .020
1.00 – 1.60 .016 .025
1.60 – 2.50 .020 .032
2.50 – 4.00 .025 .040
4.00 – 6.30 .032 .050

Sponge Rubber Balls

RubberMill’s chemically blown sponge balls are molded from a premium grade natural rubber compound. Our molding process ensures uniform cell structure, excellent physical properties, good colorability, and smooth skinned surfaces.

Typical Uses for Sponge Rubber Balls:
Exercise equipment, medical apparatus, toys, flotation and novelty.

sponge rubber ball

Sponge Rubber Ball Properties & Sizes

Sizes (diameter)
Nominal (in.) Actual (mm)
1 1/8 28
1 3/8 35
2 50
2 1/4 56
2 1/2 63
2 3/4 70
Properties
Material: Natural Rubber
Hardness: 70 +/– 5 (Shore00)
Tolerance: +/– .040 in.
Density: 25.0 lb/cu.ft.
Rebound: 40%
Tensile Strength: 140 psi
Elongation: 480%

Stock vs. Custom

Standard colors available are red, blue, white, green, and yellow*. Other sizes, compounds, and colors are available as custom orders.

Contact a RubberMill Customer Service Representative for more information.