8 best precision balls

Precision balls are spherical components used in various industrial applications, primarily in the field of bearings and power transmission products.These balls are manufactured to very tight tolerances and high levels of precision to ensure smooth and efficient movement in machinery and equipment. Here are some key points about precision balls:

Bearings: Precision balls are commonly used in ball bearings, which are crucial components in many types of machinery and mechanical systems. Ball bearings reduce friction and allow for the smooth rotation of shafts and other moving parts. The precision of the balls is essential for the proper functioning of the bearing.
Materials: Precision balls can be made from various materials, depending on the application's requirements. Common materials include steel, stainless steel, ceramic, and plastic. The choice of material depends on factors such as load capacity, corrosion resistance, and temperature resistance.
Sizing and Tolerances: Precision balls are manufactured to precise dimensions and tolerances. The diameter of the ball and its roundness are critical factors that affect the performance of bearings and other components. Manufacturers carefully control these parameters to ensure consistency.
Grade and Quality: Precision balls are graded based on their precision and quality. Different industries and applications may require balls of different grades, ranging from lower-precision grades for less demanding applications to high-precision grades for precision instruments and aerospace applications.
Applications: Precision balls find use in a wide range of industries and applications beyond bearings. These include automotive components, aerospace systems, medical devices, and precision instruments like gauges and measuring equipment.
Corrosion Resistance: In environments where corrosion is a concern, such as marine or chemical processing applications, stainless steel or ceramic precision balls are often preferred due to their resistance to rust and chemical degradation.
Customization: Some applications may require customized precision balls with specific sizes, materials, or surface coatings to meet unique performance requirements.

Overall, precision balls play a crucial role in ensuring the smooth and reliable operation of various machinery and equipment across multiple industries, where precision and low friction are essential for performance and efficiency.

Below you can find our editor's choice of the best precision balls on the market

1000 Pieces) PGN - Slingshot Ammo 3/8" Inch (0.375" Caliber) Precision Steel Balls

PGN

Based on 596 reviews Check latest price

Quantity per Package: 1000 Pcs
Diameter: 3/8", 0.375" inches (9.525 millimeter)
Weight: 0.12529 ounces (3.5519 grams)
Shoots Straight and Hit Harder
Extremely Precise and Smooth

User questions & answers

Question:	I’ve heard bearing balls work really well as weights for pie baking would these rust if i used for this purpose
Answer:	No circulation

VIGRUE 530Pcs Loose Bicycle Bearing Balls Assortment Kit 3/32” 1/8" 5/32" 3/16" 7/32" 1/4" 9/32” 5/16” 11/32” 3/8” 13/32” 1/2", SAE Size

VIGRUE

Based on 1 reviews Check latest price

Chrome steel bearing balls kit, higher quality and durability, reducing replacement and maintenance cost.
There are 12 sizes bicycle bearing balls inside each package.
Smooth surface - Round and smooth, no residual burr, free of cracks and chips.
Wide application - Steel bearing ball is widely used in bearing, motors, bikes, casters, drawer slides, air conditioner, refrigerators and other projects.
Warranty - Whenever you need us, please contact us by email or Q&A. Satisfaction guaranteed. Money back or exchange.

Two 2" Inch Chrome Steel Bearing Balls G25

BC Precision

Based on 296 reviews Check latest price

Product description

The finest quality chrome steel produced in accordance with the highest industry standards. These high precision G25 ball bearings are hot forged from bar stock. Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating to assure uniform hardness and proper microstructure for each Stainless steel ball. Throughout the manufacturing process, statistical process control assures tolerance accuracy, fine surface finish and consistent high quality. Chrome steel balls offer the precise geometry and fine surface finish that makes them especially useful for bicycles, casters, drawer slides, door locks and many other applications.

High precision grade G25
Finest quality AISI 52100 chrome steel
Item Package Dimension: 4.0" L x 3.0" W x 3.0" H
Item Package Weight: 2.45 lb

User questions & answers

Question:	Length and width of this item
Answer:	Circular objects do not have a length/width, they only have a diameter...this one is 2" in all directions.
Question:	In size, is this roughly similar to a billiard ball
Answer:	A standard billiard ball will be about 1/4" larger than this 2" chromium ball.
Question:	is this type of chrome steel weldable, if so what type of tig wire would be best
Answer:	Yes I welded one to a 1 inch metal stock bar to use as a pull up bar work great.
Question:	Listed shipping/item weight says 3.2 ounces for the two pack, but in some answers you say they are 1 pound 2.6 ounces per 2 inch ball. Which is it
Answer:	The weight is 1.185 pounds and the two balls together will make a total shipping weight roughly - 2.5 pounds with packing material. Thank you for the inquiry.

Ten 1" Inch Chrome Steel Bearing Balls G25

BC Precision

Based on 652 reviews Check latest price

Product description

High Precision Grade G25
Finest Quality AISI 52100 Chrome Steel

User questions & answers

Question:	Will these 1" bearings crack when frozen
Answer:	At 32 degrees F (0 degrees C) no. I suppose you could get them deep enough into the minus Fahrenheit scale to crack them in use. Like at the poles or in space. They state that these meet E52100.
Question:	Are these stainless? They are not gonna rust, aren't they
Answer:	These are not a "stainless" Alloy. These will in fact rust given certain conditions.
Question:	Can i weld then to the top of fence posts
Answer:	yes !! if your fence post are a weldable material. if you are using them for that i would not get the chrome but use the cheaper ones. i welded a 3" ball to a short length of chain it makes a great wepon or just a conservation pice
Question:	Are these food safe
Answer:	You will need to order stainless steel balls for a food safe application because chrome steel is not a safe option. Search Amazon for this item # B0184ELRE6 and you can pick the quantity you need. Thanks for your interest in BC Precision products.

uxcell 2mm Precision Solid Brass Bearing Balls 100pcs

uxcell

Based on 9 reviews Check latest price

Product description

Description:

Brass balls provide excellent resistance to corrosion by water, and they are substantially lower in cost than other corrosion-resisting balls.

Brass balls also have the ability to resist the corrosive effects of fuel oil, gasoline, dry carbon dioxide, benzene, lime-sulphur mixture and similar chemical agents.

Brass balls are frequently used in many types of valve applications requiring small-size balls.

Specially useful for casters, drawer slides, door locks and many other applications.

Suitable for a range of purposes, some of the most common are listed below:

1/8" is often used for clusters and old English-style headsets

1/4" is often used for rear wheels and bottom brackets

3/16" is often used for front wheels

5/32" is often used for headsets with pressing cups

Specification:

Size: 2mm

Tolerance: +/-0.015mm

Material: Brass (H62)

Package Content: 100 Piece

2mm in diameter
Made of High Precision Brass (H62)
Smooth surface precision balls. Lightly lubricated
Good hardness and corrosion resistance
Package includes 100 piece balls

PGN - 1-1/2" Inch Chrome Steel Bearing Balls - G25 Precision

PGN

Based on 71 reviews Check latest price

G25 Chrome Steel Bearing Balls
ISO 9001:2008
Provides higher quality and durability, reducing replacement and maintenance cost
Diameter: 1-1/2", 1.5" Inches (38.1 millimeters)
Weight: 8.018 ounces (227.3217 grams)

2000pcs 1/4inch 6.35mm Precision Steel Bearing Balls Steel Slingshot Ammo Ball

QZsteelball

Based on 5 reviews Check latest price

Product description

A great choice to use with most brands of slingshots, these slingshot ammo help you get the most out of your slingshot. Suitable for hunting and target shooting, this shot is perfectly shaped, giving you an easy grip for a smooth pull back to shooting position with less hand strain.

Size-1/4inch(6.35 mm)
Package-2000pcs
Weight-2.1kg
Material-carbon steel, AISI1015
Suitable for machine parts and slingshot ammo

uxcell 1/4-inch Precision Solid Brass Bearing Balls 25pcs

uxcell

Based on 7 reviews Check latest price

Product description

Description:

Brass balls provide excellent resistance to corrosion by water, and they are substantially lower in cost than other corrosion-resisting balls.

Brass balls also have the ability to resist the corrosive effects of fuel oil, gasoline, dry carbon dioxide, benzene, lime-sulphur mixture and similar chemical agents.

Brass balls are frequently used in many types of valve applications requiring small-size balls.

Specially useful for casters, drawer slides, door locks and many other applications.

Suitable for a range of purposes, some of the most common are listed below:

1/8" is often used for clusters and old English-style headsets

1/4" is often used for rear wheels and bottom brackets

3/16" is often used for front wheels

5/32" is often used for headsets with pressing cups

Specification:

Size: 1/4" (6.35)mm

Tolerance: +/-0.015mm

Material: Brass

Package Content: 25 Piece