Sprockets for 25 mm Maximum Shaft Diameter

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12 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 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
20	8	25	55	14	30	Steel	DIN 8187, ISO 606	0000000	000000
21	8	25	57.5	14	35	Steel	DIN 8187, ISO 606	0000000	00000
22	8	25	60	14	35	Steel	DIN 8187, ISO 606	0000000	00000
25	8	25	67.5	14	35	Steel	DIN 8187, ISO 606	0000000	00000
For ISO 06B Roller Chain (9.53 mm Pitch)
17	10	25	56.9	28	40	Steel	DIN 8187, ISO 606	000000	00000
18	10	25	59.94	28	43	Steel	DIN 8187, ISO 606	000000	00000
For ISO 08B Roller Chain (12.7 mm Pitch)
13	10	25	59.4	28	38	Steel	DIN 8187, ISO 606	00000000	00000
For ISO 10B Roller Chain (15.88 mm Pitch)
11	12	25	66.03	25	37	Steel	DIN 8187, ISO 606	00000000	00000

Machinable-Bore Corrosion-Resistant Sprockets for Metric Roller Chain

Machine the center of these sprockets to fit the exact dimensions of your shaft. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. The teeth are sized to fit into metric ISO roller chain. Made from stainless steel, they won’t corrode from humidity or frequent washdowns. The extended hub makes these sprockets more stable and more durable than sprockets with flat hubs. They meet ISO 606 (formerly DIN 8187), which is an international standard for dimensions and materials.

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

For ISO 06B Roller Chain (9.53 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
17	10	25	57.39	25	40	Stainless Steel	DIN 8187, ISO 606	0000000	0000000

Sprockets for Double-Strand Metric Roller Chain

The double row of teeth on these sprockets are designed to fit into metric ISO double-strand roller chain. They have an unfinished bore that’s machined to the shaft diameter size listed. Machine them to fit any shaft up to the maximum shaft diameter size. The extended hub makes these sprockets more stable and more durable than flat sprockets. They meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.

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

For ISO 06B-2 Roller Chain (9.53 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
18	12	25	60.41	30	43	Steel	DIN 8187, ISO 606	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
10	20°	2:1	40	60	60.75	24.9	10-25	35	Black-Oxide 1045 Carbon Steel	38	15	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
10	20°	2:1	20	30	33.08	25.5	8-15	46	Black-Oxide 1045 Carbon Steel	25	15	0000000	000000