Plastic Bearing Balls | McMaster-Carr

Clear All

	Material Material

Delrin® Acetal Plastic

PTFE Plastic

Nylon Plastic

Torlon PAI Plastic

Polypropylene Plastic

HDPE Plastic

Acrylic Plastic

Polycarbonate Plastic

	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Shape Shape

	Ball

	Color Color

	White		Off-White
	Green		Clear

	Hardness Rating Hardness Rating

	Performance Properties Performance Properties

Low Thermal Expansion

	For Use With For Use With

	Density Density

	Comparable To Comparable To

	Maximum Temperature Maximum Temperature

Less than 500° F

500° to 999° F

Not Rated

	Friction Rating Friction Rating

Very Slippery

Slippery

Not Rated

	Tolerance Rating Tolerance Rating

Standard

	Clarity Clarity

Clear

Semi-Clear

Opaque

	Thermal Stability Thermal Stability

	Impact Strength Rating Impact Strength Rating

Poor

Good

Excellent

	Impact Strength Impact Strength

1.1-1.94 ft.-lbs./in.

2.7 ft.-lbs./in.

3.5 ft.-lbs./in.

12-18 ft.-lbs./in.

	Tensile Strength Tensile Strength

	For Use Outdoors For Use Outdoors

Yes

	Water Absorption Rating Water Absorption Rating

Good

Poor

Excellent

	Hardness Hardness

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

Forward

How can we improve?

132 Products

About Plastic

Color: White
Temperature Range: -20° to 180° F
Tensile Strength: 10,000-11,000 psi (Good)
Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
Hardness: Rockwell R120-R122 (Hard)
For Use Outdoors: No
Specifications Met: FDA Compliant 21 CFR 177.2480

Able to hold tight tolerances, these balls resist expanding when exposed to heat and moisture. They have a naturally slippery, wear-resistant surface. Use them for bearings and low-load rolling applications. Delrin® acetal resin is also known as acetal homopolymer.

For technical drawings and 3-D models, click on a part number.

Inch
Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/16"	-0.001" to 0.001"	100	000000	00000
3/32"	-0.001" to 0.001"	100	0000000	0000
1/8"	-0.001" to 0.001"	100	0000000	0000
9/64"	-0.001" to 0.001"	100	0000000	0000
5/32"	-0.001" to 0.001"	100	0000000	0000
3/16"	-0.001" to 0.001"	100	0000000	0000
7/32"	-0.001" to 0.001"	100	0000000	0000
1/4"	-0.001" to 0.001"	100	0000000	0000
9/32"	-0.001" to 0.001"	25	0000000	0000
5/16"	-0.001" to 0.001"	100	0000000	0000
3/8"	-0.001" to 0.001"	100	0000000	00000
7/16"	-0.001" to 0.001"	50	0000000	00000
1/2"	-0.001" to 0.001"	50	0000000	00000
9/16"	-0.001" to 0.001"	25	0000000	0000
5/8"	-0.001" to 0.001"	25	000000	00000
3/4"	-0.001" to 0.001"	10	0000000	0000
13/16"	-0.001" to 0.001"	1	0000000	0000
7/8"	-0.001" to 0.001"	10	0000000	00000
15/16"	-0.001" to 0.001"	1	0000000	0000
1"	-0.001" to 0.001"	10	0000000	00000
1 1/8"	-0.002" to 0.002"	1	0000000	0000
1 1/4"	-0.002" to 0.002"	1	0000000	0000
1 1/2"	-0.002" to 0.002"	1	0000000	0000
2"	-0.002" to 0.002"	1	0000000	00000
Metric
2mm	-0.0254mm to 0.0254mm	100	0000000	0000
3.5mm	-0.0254mm to 0.0254mm	100	0000000	0000
4mm	-0.0254mm to 0.0254mm	100	0000000	0000
5mm	-0.0254mm to 0.0254mm	100	0000000	0000
8mm	-0.0254mm to 0.0254mm	50	0000000	0000

Wear-Resistant Nylon Balls

Color: Off-White
Temperature Range: Not Rated
Tensile Strength: 11,200-12,300 psi (Good)
Impact Strength: 0.6-1.4 ft.-lbs./in. (Poor)
Hardness: Rockwell R108-R121 (Hard)
For Use Outdoors: No

Use these nylon 6/6 balls as bearings and in sealing applications. They have a slippery surface that reduces wear caused by friction.

For technical drawings and 3-D models, click on a part number.

Inch
Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/16 "	-0.002" to 0.002"	100	0000000	000000
3/32 "	-0.002" to 0.002"	100	0000000	0000
1/8 "	-0.001" to 0.001"	100	0000000	0000
5/32 "	-0.001" to 0.001"	100	0000000	0000
3/16 "	-0.001" to 0.001"	100	0000000	0000
7/32 "	-0.001" to 0.001"	100	0000000	0000
1/4 "	-0.001" to 0.001"	100	0000000	0000
9/32 "	-0.001" to 0.001"	100	0000000	00000
5/16 "	-0.001" to 0.001"	100	0000000	00000
3/8 "	-0.001" to 0.001"	100	0000000	00000
7/16 "	-0.002" to 0.002"	100	0000000	00000
1/2 "	-0.001" to 0.001"	50	0000000	00000
9/16 "	-0.001" to 0.001"	50	0000000	00000
5/8 "	-0.002" to 0.002"	10	0000000	0000
3/4 "	-0.001" to 0.001"	10	0000000	0000
7/8 "	-0.001" to 0.001"	10	0000000	00000
1 "	-0.001" to 0.001"	5	0000000	0000
1 1/2 "	-0.002" to 0.002"	1	0000000	0000
1 3/4 "	-0.002" to 0.002"	1	0000000	00000
2 "	-0.002" to 0.002"	1	0000000	00000
Metric
2 mm	-0.002" to 0.002"	100	0000000	0000
5 mm	-0.001" to 0.001"	100	0000000	00000
6 mm	-0.001" to 0.001"	25	0000000	00000

Polypropylene Balls

Color: Semi-Clear White
Max. Temperature:
Solid Balls: 180° F
Hollow Balls: 220° F
Tensile Strength: 2,900-5,070 psi (Poor)
Impact Strength: 0.9 ft.-lbs./in. (Poor)
Hardness: Rockwell R99 (Hard)
For Use Outdoors: No
Specifications Met: See table

Resistant to swelling when exposed to water, these balls are often used in laboratory applications.

Hollow balls float. Use them in tanks to slow evaporation and reduce heat loss.

For technical drawings and 3-D models, click on a part number.

Solid
Dia.	Dia. Tolerance	Specifications Met	Pkg. Qty.		Pkg.
1/8"	-0.002" to 0.002"	ASTM D4101	500	000000	00000
5/32"	-0.002" to 0.002"	ASTM D4101	500	000000	00000
3/16"	-0.002" to 0.002"	ASTM D4101	500	000000	00000
7/32"	-0.002" to 0.002"	ASTM D4101	250	000000	00000
1/4"	-0.002" to 0.002"	ASTM D4101	250	0000000	00000
9/32"	-0.002" to 0.002"	ASTM D4101	100	000000	00000
5/16"	-0.002" to 0.002"	ASTM D4101	250	0000000	00000
3/8"	-0.002" to 0.002"	ASTM D4101	100	0000000	0000
0.4"	-0.002" to 0.002"	__	15	0000000	0000
7/16"	-0.002" to 0.002"	ASTM D4101	50	000000	00000
1/2"	-0.002" to 0.002"	ASTM D4101	100	0000000	00000
5/8"	-0.002" to 0.002"	ASTM D4101	50	0000000	00000
3/4"	-0.002" to 0.002"	ASTM D4101	25	0000000	0000
0.787"	-0.002" to 0.002"	__	10	0000000	0000
7/8"	-0.002" to 0.002"	ASTM D4101	1	0000000	0000
1"	-0.002" to 0.002"	ASTM D4101	10	0000000	0000
1.479"	-0.002" to 0.002"	__	3	0000000	0000
Hollow
0.787"	-0.010" to 0.010"	FDA Compliant 21 CFR 177.1520	150	0000000	00000
1"	-0.015" to 0.015"	FDA Compliant 21 CFR 177.1520	25	0000000	0000
1.4"	-0.015" to 0.015"	FDA Compliant 21 CFR 177.1520	25	0000000	0000
1.496"	-0.010" to 0.010"	FDA Compliant 21 CFR 177.1520	50	0000000	00000
1.969"	-0.020" to 0.020"	FDA Compliant 21 CFR 177.1520	40	0000000	00000
3.15"	-0.030" to 0.030"	FDA Compliant 21 CFR 177.1520	10	0000000	00000
3.937"	-0.050" to 0.050"	FDA Compliant 21 CFR 177.1520	1	0000000	0000

Moisture-Resistant Polyethylene (HDPE) Balls

Color: Semi-Clear White
Temperature Range: Not Rated
Tensile Strength: 3,920-4,200 psi (Poor)
Impact Strength: 1.1-1.94 ft.-lbs./in. (Poor)
Hardness: Rockwell R40-R80 (Medium)
For Use Outdoors: No

Often used in check valves, relief valves, and float valves, these balls won’t swell when exposed to water. HDPE offers good chemical resistance.

For technical drawings and 3-D models, click on a part number.

Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/8"	-0.002" to 0.002"	250	0000000	00000
1/4"	-0.002" to 0.002"	250	0000000	00000
3/8"	-0.002" to 0.002"	100	0000000	00000
7/16"	-0.002" to 0.002"	100	0000000	00000
1/2"	-0.002" to 0.002"	50	0000000	00000
9/16"	-0.002" to 0.002"	25	0000000	0000

Chemical-Resistant Slippery PTFE Balls

Color: White
Max. Temperature: 500° F
Tensile Strength: See Table (Poor)
Impact Strength: 3.5 ft.-lbs./in. (Good)
Hardness: Durometer 50D-65D (Medium Soft)
For Use Outdoors: Yes

Offering a nonstick, slippery surface, these PTFE balls are often used as bearings and in ball valves. They offer superior chemical resistance and perform well in extreme temperatures. These balls are also excellent electrical insulators.

For technical drawings and 3-D models, click on a part number.

Dia.	Dia. Tolerance	Tensile Strength	Pkg.Qty.		Pkg.
1/16"	-0.002" to 0.002"	2,000-3,480 psi	100	0000000	000000
3/32"	-0.002" to 0.002"	2,000-3,480 psi	100	0000000	00000
1/8"	-0.002" to 0.002"	2,000-3,480 psi	100	0000000	00000
5/32"	-0.002" to 0.002"	2,000-3,480 psi	100	0000000	00000
3/16"	-0.002" to 0.002"	2,000-3,480 psi	50	0000000	00000
1/4"	-0.002" to 0.002"	2,000-3,480 psi	50	0000000	00000
5/16"	-0.002" to 0.002"	2,000-3,480 psi	25	0000000	0000
3/8"	-0.002" to 0.002"	2,000-3,480 psi	20	0000000	0000
1/2"	-0.002" to 0.002"	2,000-3,480 psi	10	0000000	0000
5/8"	-0.002" to 0.002"	2,000-3,480 psi	5	0000000	00000
3/4"	-0.002" to 0.002"	2,000-3,480 psi	1	0000000	0000
1"	-0.002" to 0.002"	2,000-3,480 psi	1	0000000	0000
1 1/8"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	00000
1 1/4"	-0.005" to 0.005"	2,000-3,480 psi	1	0000000	00000
1 1/2"	-0.005" to 0.005"	2,000-3,480 psi	1	0000000	00000
1 3/4"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	00000
2"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	000000
2 1/4"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	000000
2 1/2"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	000000
3"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	000000
4"	-0.005" to 0.005"	3,000-5,000 psi	1	0000000	000000

High-Strength Wear-Resistant Torlon PAI Balls

Color: Green
Max. Temperature: 450° F
Tensile Strength: 15,000 psi (Excellent)
Impact Strength: 2.7 ft.-lbs./in. (Good)
Hardness: Rockwell M106 (Extra Hard)
For Use Outdoors: No
Specifications Met: UL 94 V-0

Dimensionally stable and slippery, these balls are often used in high-friction applications, such as nonlubricated rollers and ball bearings.

For technical drawings and 3-D models, click on a part number.

Inch
Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/8"	-0.001" to 0.001"	50	0000000	000000
3/16"	-0.001" to 0.001"	25	0000000	00000
7/32"	-0.001" to 0.001"	25	0000000	0000
1/4"	-0.001" to 0.001"	25	0000000	00000
5/16"	-0.001" to 0.001"	25	0000000	00000
3/8"	-0.001" to 0.001"	15	0000000	00000
13/32"	-0.001" to 0.001"	10	0000000	00000
1/2"	-0.001" to 0.001"	10	0000000	00000
Metric
5mm	-0.0254mm to 0.0254mm	10	0000000	0000
6mm	-0.0254mm to 0.0254mm	10	0000000	0000

Clear Scratch- and UV-Resistant Acrylic Balls

Color: Clear
Max. Temperature: 180° F
Tensile Strength: 9,195-11,030 psi (Good)
Impact Strength: 0.040 ft.-lbs./in. (Poor)
Hardness: Rockwell M89-M96 (Hard)
For Use Outdoors: Yes
Specifications Met: UL 94 HB

A lightweight alternative to glass balls, acrylic balls maintain clarity over time. They are scratch and UV resistant, so they stand up to outdoor use better than polycarbonate.

For technical drawings and 3-D models, click on a part number.

Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/16"	-0.002" to 0.002"	500	0000000	000000
1/8"	-0.002" to 0.002"	250	0000000	00000
5/32"	-0.002" to 0.002"	250	0000000	00000
3/16"	-0.002" to 0.002"	100	0000000	00000
7/32"	-0.002" to 0.002"	100	0000000	00000
1/4"	-0.002" to 0.002"	100	0000000	00000
5/16"	-0.002" to 0.002"	50	0000000	00000
3/8"	-0.002" to 0.002"	50	0000000	00000
1/2"	-0.002" to 0.002"	25	0000000	00000
5/8"	-0.002" to 0.002"	25	0000000	00000
3/4"	-0.002" to 0.002"	10	0000000	00000
1"	-0.002" to 0.002"	5	0000000	00000

Clear Impact-Resistant Polycarbonate Balls

Color: Clear
Temperature Range: 0° to 240° F
Tensile Strength: 8,900-9,500 psi (Good)
Impact Strength: 12-18 ft.-lbs./in. (Excellent)
Hardness: Rockwell R118 (Hard)
For Use Outdoors: No

Offering excellent impact resistance across a wide temperature range, these polycarbonate balls are only half the weight of glass. This material is comparable to Lexan, Hyzod, Tuffak, and Makrolon.

For technical drawings and 3-D models, click on a part number.

Dia.	Dia. Tolerance	Pkg. Qty.		Pkg.
1/4"	-0.001" to 0.001"	25	0000000	000000
5/16"	-0.001" to 0.001"	10	0000000	00000
3/8"	-0.001" to 0.001"	5	0000000	00000
1/2"	-0.001" to 0.001"	2	0000000	00000
5/8"	-0.001" to 0.001"	2	0000000	00000
3/4"	-0.001" to 0.001"	1	0000000	00000
1"	-0.001" to 0.001"	1	0000000	00000

Email Us

About Plastic

Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Balls

Wear-Resistant Nylon Balls

Polypropylene Balls

Moisture-Resistant Polyethylene (HDPE) Balls

Chemical-Resistant Slippery PTFE Balls

High-Strength Wear-Resistant Torlon PAI Balls

Clear Scratch- and UV-Resistant Acrylic Balls

Clear Impact-Resistant Polycarbonate Balls