Metric Round Belts | McMaster-Carr

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Metric

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Inch

Metric

	Diameter Diameter

	Color Color

	Clear		Orange
	Green		Yellow

	Outer Circumference Outer Circumference

	Material Material

Rubber

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	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

	For Minimum Pulley Diameter For Minimum Pulley Diameter

	Specifications Met Specifications Met

FDA Compliant 21 CFR
177.1680

FDA Compliant 21 CFR
177.2600

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About Sizing Belts

Clear

Orange

Made of polyurethane, these belts resist chemicals and abrasion. Also known as O-ring and endless belts, they come ready to use.

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

2 mm Dia.

Outer Circumference

Outer Circumference, mm	Material	Specifications Met	Choose a Color		Each
203	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
229	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
305	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
406	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000

4 mm Dia.

Outer Circumference

Outer Circumference, mm	Material	Specifications Met	Choose a Color		Each
203	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
229	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
254	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
279	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
305	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	0000
356	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
381	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
457	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
483	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
1,067	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
1,524	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000

6 mm Dia.

Outer Circumference

Outer Circumference, mm	Material	Specifications Met	Choose a Color		Each
203	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	000000
229	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
254	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
305	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
457	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
483	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
533	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
635	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
660	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000
762	Polyurethane Rubber	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	Clear, Orange	00000000	00000

Textured Round Belts

Outer Circumference

Often used with lathes and conveyors, these textured belts grip better than standard round belts, making sure heavy loads don’t slip. The solid core makes these belts strong and durable, and they stretch less than hollow core belts. Made from polyurethane, they hold up to chemicals and abrasion. Also known as O-ring and endless belts, they come ready to use.

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

2 mm Dia.
Outer Circumference, mm	Material	Color		Each
203	Polyurethane Rubber	Green	00000000	00000
229	Polyurethane Rubber	Green	00000000	0000
254	Polyurethane Rubber	Green	00000000	0000
279	Polyurethane Rubber	Green	00000000	0000
305	Polyurethane Rubber	Green	00000000	0000
406	Polyurethane Rubber	Green	00000000	0000
4 mm Dia.
203	Polyurethane Rubber	Green	00000000	0000
229	Polyurethane Rubber	Green	00000000	0000
254	Polyurethane Rubber	Green	00000000	0000
279	Polyurethane Rubber	Green	00000000	0000
305	Polyurethane Rubber	Green	00000000	0000
356	Polyurethane Rubber	Green	00000000	00000
381	Polyurethane Rubber	Green	00000000	00000
457	Polyurethane Rubber	Green	00000000	00000
483	Polyurethane Rubber	Green	00000000	00000
508	Polyurethane Rubber	Green	00000000	00000
559	Polyurethane Rubber	Green	00000000	00000
610	Polyurethane Rubber	Green	00000000	00000
635	Polyurethane Rubber	Green	00000000	00000
660	Polyurethane Rubber	Green	00000000	00000
711	Polyurethane Rubber	Green	00000000	00000
813	Polyurethane Rubber	Green	00000000	00000
1,372	Polyurethane Rubber	Green	00000000	00000
1,422	Polyurethane Rubber	Green	00000000	00000
1,524	Polyurethane Rubber	Green	00000000	00000
6 mm Dia.
203	Polyurethane Rubber	Green	00000000	00000
229	Polyurethane Rubber	Green	00000000	00000
254	Polyurethane Rubber	Green	00000000	00000
279	Polyurethane Rubber	Green	00000000	00000
305	Polyurethane Rubber	Green	00000000	00000
457	Polyurethane Rubber	Green	00000000	00000
483	Polyurethane Rubber	Green	00000000	00000
508	Polyurethane Rubber	Green	00000000	00000
533	Polyurethane Rubber	Green	00000000	00000
559	Polyurethane Rubber	Green	00000000	00000
635	Polyurethane Rubber	Green	00000000	00000
660	Polyurethane Rubber	Green	00000000	00000
711	Polyurethane Rubber	Green	00000000	00000
762	Polyurethane Rubber	Green	00000000	00000
813	Polyurethane Rubber	Green	00000000	00000
864	Polyurethane Rubber	Green	00000000	00000
914	Polyurethane Rubber	Green	00000000	00000
965	Polyurethane Rubber	Green	00000000	00000
8 mm Dia.
305	Polyurethane Rubber	Green	00000000	00000
762	Polyurethane Rubber	Green	00000000	00000
10 mm Dia.
559	Polyurethane Rubber	Green	00000000	00000
711	Polyurethane Rubber	Green	00000000	00000

Chemical-Resistant Made-to-Order Round Belts

Outer Circumference

In addition to chemical resistance, these belts also provide increased abrasion resistance over heavy duty round belts. Also known as O-ring and endless belts, they come ready to use.

To Order: Please specify outer circumference in 1/4" increments.

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

Dia.	Outer Circumference	For Min. Pulley Dia.	Material	Color		Per Inch
2mm	8"-1,200"	18mm	Polyurethane Rubber	Green	0000000	00000
4mm	8"-1,200"	36mm	Polyurethane Rubber	Green	0000000	000
6mm	8"-1,200"	54mm	Polyurethane Rubber	Green	0000000	0000
8mm	8"-1,200"	71mm	Polyurethane Rubber	Green	0000000	0000
10mm	8"-1,200"	89mm	Polyurethane Rubber	Green	0000000	0000

Round Belting

This belting has a smooth, easy-to-clean surface. Good for light duty conveying and power-transmission applications, it is chemical and abrasion resistant and creates stronger connections than hollow-core belting. Join the ends with round belting connectors (sold separately) or use a welding kit.

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

Belting						Connectors
Dia.	For Min. Pulley Dia.	Material	Color		Per Ft.		Each
2mm	19mm	Polyurethane Rubber	Green	0000000	00000	000000	00
4mm	36mm	Polyurethane Rubber	Green	0000000	0000	000000	00
6mm	53mm	Polyurethane Rubber	Green	0000000	0000	000000	00
8mm	71mm	Polyurethane Rubber	Green	0000000	0000	0000000	000000

Textured Round Belting

The textured surface improves gripping ability. Good for light duty conveying and power-transmission applications, this belting is chemical and abrasion resistant and creates stronger connections than hollow-core belting. Join the ends with round belting connectors (sold separately) or use a welding kit.

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

Belting						Connectors
Dia., mm	For Min. Pulley Dia., mm	Material	Color		Per Ft.		Each
2	19	Polyurethane Rubber	Green	0000000	00000	000000	00
4	36	Polyurethane Rubber	Green	0000000	0000	000000	00
6	53	Polyurethane Rubber	Green	0000000	0000	000000	00
8	71	Polyurethane Rubber	Green	0000000	0000	0000000	000000

Quick-Connect Hollow-Core Round Belting

The hollow core of this polyurethane belting allows you to join the ends without trimming, welding, or using special tools. Good for light duty conveying and power-transmission applications, it is chemical and abrasion resistant. Join the ends with quick-connect hollow-core round belting connectors (sold separately).

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

		Yellow
Dia.	Material	For Min. Pulley Dia.		Per Ft.
6mm	Polyurethane Rubber	50mm	000000	00000
8mm	Polyurethane Rubber	63mm	000000	0000
10mm	Polyurethane Rubber	76mm	000000	0000

Connectors

Aluminum

Plastic

Press these connectors into quick-connect hollow-core round belting to join the ends.

Plastic connectors are corrosion resistant in harsh environments.

		Aluminum		Plastic
For Belt Dia.	Pkg. Qty.		Pkg.		Pkg.
1/4", 6mm	25	0000000	000000	0000000	000000
5/16", 8mm	25	0000000	00000	0000000	00000
3/8", 7/16", 10mm	20	0000000	00000	0000000	00000