23 mm Hub Diameter Sprockets

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 05B Roller Chain (8 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
13	8	20	36.7	13	23	Steel	DIN 8187, ISO 606	0000000	000000
For DIN, ISO 06B Roller Chain (9.53 mm Pitch)
11	8	14	37	25	23	Steel	DIN 8187, ISO 606	0000000	00000

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.

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

Metric Gears

Gear with Round Bore

									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		Each
Round Bore
1	28	28	30	10	20	8	303 Stainless Steel	Not Hardened	23	10	00000000	000000

High-Power Metal Gears

Crossed Right-Hand Gear
and Crossed Left-Hand
Gear (Sold Separately)

Two Crossed Gears
with Right-Hand
Teeth (Sold Separately)

Gear with Round Bore

The helical teeth on these gears stay in contact for longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.

For gears to mesh correctly, they must have the same pressure angle and pitch. All of these gears transmit motion in a straight line—make sure to get one left-hand and one right-hand gear. To change speed and torque in your assembly, pair two gears with different numbers of teeth.

Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To avoid wearing down gears, which happens when you use the same material, we recommend mating gears with different materials. Carbon steel gears are stronger than 303 stainless steel gears but are not as corrosion resistant. 303 stainless steel gears have good corrosion resistance, and are commonly used on machinery in food-processing plants.

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

Metric Crossed Gears—20° Pressure Angle

									Hub
Module	Number of Teeth	Helix Angle	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Teeth Heat Treatment	Dia., mm	Wd., mm		Each
Left Hand
Round Bore—Black-Oxide 1045 Carbon Steel
1.5	13	45°	27	30.58	15	25	10	Not Hardened	23	10	00000000	000000
Round Bore—303 Stainless Steel
1.5	13	45°	28	30.58	15	25	10	Not Hardened	23	10	00000000	00000
Right Hand
Round Bore—Black-Oxide 1045 Carbon Steel
1.5	13	45°	27	30.58	15	25	10	Not Hardened	23	10	00000000	00000
Round Bore—303 Stainless Steel
1.5	13	45°	28	30.58	15	25	10	Not Hardened	23	10	00000000	00000

About Roller Chain and Sprockets

About Gears

Sprockets for Metric Roller Chain

Metal Gears and Gear Racks—20° Pressure Angle

High-Power Metal Gears