15mm Overall Width Sprockets

	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

	Speed Ratio Speed Ratio

1:1

2:1

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

DFARS Specialty Metals
COTS-Exempt

	Gear Pitch Diameter Gear Pitch Diameter

25mm

40mm

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11 Products

About Roller Chain and Sprockets

About Gears

Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.

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

For DIN, ISO 04B Roller Chain (6 mm Pitch)
Number of Teeth	For Shaft Dia., mm	For Max. Shaft Dia., mm	OD, mm	Overall Wd., mm	Hub Dia., mm	Material	Specifications Met		Each
30	8	19	59.9	15	30	Steel	DIN 8187, ISO 606	0000000	000000

Metal Gears and Gear Racks—20° Pressure Angle

The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.

Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.

For components to mesh correctly, they must have the same pressure angle and pitch/module.

Gears with teeth that are not hardened can be hardened to fit your application.

Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.

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

Metric Gears

Gear with Clamping Bore and Clamping Screw

									Hub
Module	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Material	Teeth Heat Treatment	Dia., mm	Wd., mm	Clamping Screw Thread Size		Each
Clamping Bore with Clamping Screw
0.5	50	25	26	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	000000

Metal Bevel Gears

Gear and Pinion Sold Separately

Gear

A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.

A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.

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

Metric Gears

										Hub
Face Wd., mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Wd., mm	For Shaft Dia., mm	Mounting Distance (A), mm	Dia., mm	Wd., mm	Material		Each
Round Bore
6	1	20°	2:1	40	40	41	15	8	22	25	8	Black-Oxide 1045 Carbon Steel	00000000	000000

Metric Pinions

Pinion

										Hub
Face Wd., mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Wd., mm	For Shaft Dia., mm	Mounting Distance (B), mm	Dia., mm	Wd., mm	Material		Each
Round Bore
6	1	20°	2:1	20	20	22	14	6	28	16	7	Black-Oxide 1045 Carbon Steel	00000000	000000

High-Power Metal Bevel Gears

Gear and Pinion Sold Separately

Made from carbon steel with spiral teeth, these gears handle heavier loads at higher speeds than bevel gears with straight teeth because their teeth stay in contact longer. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. Use these gears to transmit motion at a right angle while changing shaft speed and torque. They reduce speeds at ratios of 2:1, 3:1, or 4:1. Customize their machinable bore to fit them on a variety of shafts. They’re also known as spiral bevel gears.

A complete set consists of a gear and pinion (sold separately). The gear is larger than the pinion, but for them to mesh correctly, they must have the same pressure angle, module, and face width.

Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.

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

Gears

										Hub
Face Width, mm	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Width, mm	For Shaft Diameter, mm	Mounting Distance (A), mm	Material	Diameter, mm	Width, mm		Each
Machinable Round Bore
6	20°	2:1	40	40	40.52	15	8-18	22	Black-Oxide 1045 Carbon Steel	25	8	0000000	000000

Pinions

Gear and Pinion Sold Separately

										Hub
Face Width, mm	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Width, mm	For Shaft Diameter, mm	Mounting Distance (B), mm	Material	Diameter, mm	Width, mm		Each
Machinable Round Bore
6	20°	2:1	20	20	22.08	13.7	6-9	28	Black-Oxide 1045 Carbon Steel	16	7	0000000	000000

Plastic Miter Gears

Gears Sold Separately

Connect two shafts at a right angle without changing shaft speed or torque. Made of plastic, these gears run quieter than metal gears and have good corrosion and chemical resistance.

For two gears to mesh correctly, they must have the same pressure angle, pitch/module, and number of teeth.

Nylon gears are self-lubricating, so they’re often used in food machinery. However, they’re not approved for direct contact with food or chemicals that will come into contact with food.

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

Metric Gears

												Hub
Module	Number of Teeth	Pressure Angle	Gear Pitch Dia.	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Mounting Distance, mm	Material	Fabrication	Color	Dia., mm	Wd., mm		Each
Round Bore
1	25	20°	25mm	26.4	6	15	6	23	Nylon Plastic	Molded	Blue	20	8	00000000	000000

Plastic Bevel Gears

Gear and Pinion Sold Separately

Reduce speeds where noise, corrosion, and frequent lubrication are a concern. Compared to metal gears, these nylon gears run more quietly, won't rust, and don't need to be lubricated. Because they’re self-lubricating, these bevel gears are commonly used in food machinery. They should not, however, come in direct contact with food or chemicals that will come in contact with food.

A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, module, and face width. Plastic pinions can also be mated with metal gears, and plastic gears with metal pinions.

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

Gears

Gear

													Hub
Face Width, mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Width, mm	For Shaft Diameter, mm	Mounting Distance (A), mm	Material	Fabrication	Color	Diameter, mm	Width, mm		Each
Round Bore
6	1	20°	2:1	40	40	40.6	15	8	22	Nylon Plastic	Molded	Blue	25	8	00000000	000000

Pinions

Gear and Pinion Sold Separately

Pinion

													Hub
Face Width, mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Width, mm	For Shaft Diameter, mm	Mounting Distance (B), mm	Material	Fabrication	Color	Diameter, mm	Width, mm		Each
Round Bore
6	1	20°	2:1	20	20	22.4	14	6	28	Nylon Plastic	Molded	Blue	16	7	00000000	000000

Metal Ratcheting Gears

Pawl and Gear Sold Separately

Compared to plastic gears, these metal ratcheting gears are better for high-load, high-speed, and heavy duty applications. Used to prevent unwanted motion in jacks, tie downs, clutches, and winches, ratchet gears have sloped teeth that allow motion in one direction and prevent it in the other.

Gears with hardened teeth are more wear resistant than gears with teeth that are not hardened.

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

Gears

Round Bore
Face Wd.	Number of Teeth	OD	For Shaft Dia.	Mounting Distance	Material	Teeth Heat Treatment	Overall Wd.		Each
15mm	30	60mm	15mm	61.2mm	1045 Carbon Steel	Hardened	15 mm	0000000	000000
15mm	60	120mm	15mm	79.1mm	1045 Carbon Steel	Hardened	15 mm	0000000	00000

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About Roller Chain and Sprockets

About Gears

Sprockets for Metric Roller Chain

Metal Gears and Gear Racks—20° Pressure Angle

Metal Bevel Gears

High-Power Metal Bevel Gears

Plastic Miter Gears

Plastic Bevel Gears

Metal Ratcheting Gears