35 mm Hub Diameter Sprockets

Sprocket teeth mesh with your roller chain to smoothly transmit power. These U.S.-made sprockets have machined teeth for a more precise fit than flame-cut or punched teeth, allowing them to glide in and out of the chain to reduce wear and extend chain life.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

Plain Bore—Plain bore sprockets give you options—machine a custom bore, weld, or press-fit them in place. They're sized to the minimum shaft diameter listed and are machinable up to the maximum.

	For Roller Chain
	Trade No.	Std.	Pitch, mm	No. of Teeth	OD, mm	Bore Type	For Shaft Dia.		Each
For Single Strand







				Steel

				05B	ISO	8	21	58	Plain	8 mm to 25 mm	2302K63	000000


				05B	ISO	8	22	60	Plain	8 mm to 25 mm	2302K64	00000
				05B	ISO	8	23	62	Plain	8 mm to 17 mm	2302K117	00000
				05B	ISO	8	24	65	Plain	8 mm to 17 mm	2302K118	00000
				05B	ISO	8	25	68	Plain	8 mm to 25 mm	2302K65	00000

Metal Spur Gears

Our strongest spur gears for transferring motion. They’re better than plastic gears for high-load, high-speed, and heavy duty applications. 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.

Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Gears


20° Pressure Angle Round Bore	Gear with Round Bore and Set Screw	Gear with Keyed Bore and Set Screw

20° Pressure Angle—The current industry standard, these 20° pressure angle spur gears have thicker, stronger teeth than 14½° pressure angle gears.

Steel—Steel gears have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

Stainless Steel—Stainless steel gears resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.

						Hub, mm				Keyway, mm
	Gear Module	No. of Teeth	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Dia.	Wd.	Bore Type	For Shaft Dia., mm	Wd.	Dp.	Tooth Heat Treatment	Material		Each
20° Pressure Angle







				Steel

				1	40	40	42	10	35	10	Round Bore with Set Screw	8	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N365	000000


				1	45	45	47	10	35	10	Round Bore with Set Screw	8	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N14	00000
				1	45	45	47	10	35	10	Round Bore with Set Screw	8	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N366	00000
				1	48	48	50	10	35	10	Round Bore	10	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N367	00000
				1	50	50	52	10	35	10	Round Bore with Set Screw	8	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N368	00000
				1	55	55	57	10	35	10	Round Bore	10	—	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N369	00000
				1	60	60	62	10	35	10	Keyed Bore with Set Screw	10	4	1.8	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N371	00000
				1	60	60	62	10	35	10	Keyed Bore with Set Screw	12	4	1.8	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N15	00000




						Stainless Steel

						1	40	40	42	10	35	10	Round Bore	10	—	—	Not Hardened	303 Stainless Steel	2664N549	00000


						1	42	42	44	10	35	10	Round Bore	10	—	—	Not Hardened	303 Stainless Steel	2664N551	00000
						1	50	50	52	10	35	10	Round Bore	10	—	—	Not Hardened	303 Stainless Steel	2664N554	00000

Gear Racks

20° Pressure Angle—Rectangular

20° Pressure Angle—Round

These racks match with spur gears to convert rotary motion to linear motion. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Steel—Steel gear racks have strong and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

Stainless Steel—Stainless steel gear racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.

Hardened—Gear racks with hardened teeth have better wear resistance than racks with teeth that are not hardened.

	Ht., mm	Face Wd., mm	Dia., mm	Tooth Heat Treatment	Material		Each
20° Pressure Angle—Rectangular







	Steel

	1	100	11	12	10	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2485N217	000000


	1	300	11	12	10	—	Not Hardened	Black-Oxide 1045 Carbon Steel	2485N218	00000
	1	500	8.8	9.8	10	—	Not Hardened	1045 Carbon Steel	2485N201	00000
	1	1,000	8.8	9.8	10	—	Not Hardened	1045 Carbon Steel	2485N202	000000




			Stainless Steel

			1	500	11	12	10	—	Hardened	304 Stainless Steel	2485N232	000000


			20° Pressure Angle—Round







							Steel

							1	500	9	—	—	10	Not Hardened	Black-Oxide 1045 Carbon Steel	2485N226	000000

Internal Gears

Image of Product. Front orientation. Internal Spur Gears. Metal Spur Gears.

Save space without losing power. Insert a standard spur gear inside one of these gears for a compact assembly that smoothly transmits motion. Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Steel—Steel gears have strong and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

	OD, mm	ID, mm	Face Wd., mm	Tooth Heat Treatment	Finished Material		Each
20° Pressure Angle







	Steel

	1	60	60	90	58	10	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N27	000000


	1	100	100	130	98	10	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N26	000000

Metal Worms and Worm Gears

Worm and

Gear Sold

Separately

Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle, pitch/module, number of thread starts, and thread direction. These worms are compatible with plastic worm gears.

Gears

Cast Iron—Cast iron gears are strong and durable.

Speed Ratio—Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.

											Hub
	Gear Module	Speed Ratio	No. of Teeth	Pressure Angle	Gear Pitch Dia., mm	For No. of Thread Starts	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Dia., mm	Wd., mm	Material	For Thread Direction	Tooth Heat Treatment	Tooth Mechanical Finish		Each
Round Bore—Cast Iron



		1	80:1	80	20°	80	1	83	10	20	10	35	10	Cast Iron	Right Hand	Not Hardened	Unfinished	57545K788	000000


		2.5	10:1	20	20°	50	2	57.5	22	36	12	35	14	Cast Iron	Right Hand	Not Hardened	Unfinished	57545K793	00000

Metal Ratchet Gears and Pawls

Gears and

Pawls (Sold

Separately)

Gears

Compared to nylon gears, these metal ratchet 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.

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

									Hub, mm
	Face Wd., mm	No. of Teeth	OD, mm	For Shaft Dia., mm	Mounting Distance, mm	Material	Tooth Heat Treatment	Overall Wd., mm	Dia.	Wd.		Each
Round Bore



		6	80	53.3	12	39.5	1045 Carbon Steel	Hardened	16	35	10	6283K63	000000


		12	50	50	12	45.5	1045 Carbon Steel	Hardened	24	35	12	6283K94	00000

High-Power Metal Helical Gears

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

Crossed Gears

Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle or in a straight line. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To transmit motion in a straight line, make sure to get one left-hand and one right-hand gear.

For gears to mesh correctly, they must have the same pressure angle and pitch/module. To change speed and torque in your assembly, pair two gears with different numbers of teeth.

							Hub, mm						Left-Hand Teeth		Right-Hand Teeth
	Gear Module	No. of Teeth	Helix Angle	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Dia.	Wd.	Bore Type	For Shaft Dia., mm	Material	Tooth Heat Treatment		Each		Each
20° Pressure Angle



		1	30	45°	42.4	44.43	10	35	10	Round Bore	10	Black-Oxide 1045 Carbon Steel	Not Hardened	3598N298	000000	3598N299	000000

Metal Bevel Gears

Gears Sold

Separately

Large Gears

Small Gears

Bevel gears provide right-angle speed reduction. They're a type of miter gear installed so that one gear is smaller than the other to achieve speed ratios ranging from 3:2 to 5:1. All are made of carbon steel for good strength.

A complete set consists of a large gear and a small gear, also known as a pinion (sold separately). For the gears to mesh correctly, they must have the same face width, pitch or module, and pressure angle.

Speed Ratio—The ratio by which shaft speed is reduced when transferring motion from the smaller to the larger gear. To increase shaft speed, transfer motion from the larger to the smaller gear. Changing shaft speed also changes torque: as speed decreases, torque increases. To achieve the speed ratio listed, match it across a set of compatible gears.

					Large Gears			Small Gears
Face Wd., mm	Gear Module	Pressure Angle	Speed Ratio	Material	For Shaft Dia., mm		Each	For Shaft Dia., mm		Each
11	2	20°	3:2	1045 Carbon Steel	10	2515N366	000000	—	———	0
15	2.5	20°	3:2	1045 Carbon Steel	—	———	0	12	2515N346	000000

Plastic Spur Gears

Made of plastic, these spur gears run more quietly than metal gears and have good corrosion and chemical resistance. However, they’re not as strong as metal gears, so they’re best for light duty applications. Combine a gear and rack to convert rotary motion into linear motion.

Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Gears

20° Pressure

Angle

20° Pressure Angle—The current industry standard, these 20° pressure angle spur gears have thicker, stronger teeth than 14½° pressure angle gears.

Nylon—Nylon gears are wear resistant, but will swell and weaken over time when wet.

						Hub, mm
	Gear Module	No. of Teeth	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Dia.	Wd.	Bore Type	For Shaft Dia., mm	Color		Each
20° Pressure Angle







				Nylon

				1	40	40	42	10	35	10	Round Bore	10	Blue	2662N429	000000


				1	50	50	52	10	35	10	Round Bore	10	Blue	2662N433	00000
				1	60	60	62	10	35	10	Round Bore	10	Blue	2662N435	00000

Gear Racks

20° Pressure Angle—Rectangular

These racks match with spur gears to convert rotary motion to linear motion. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Nylon—Nylon gear racks are wear resistant, but will swell and weaken over time when wet.

Machined—Machined gear racks may be slightly bowed but will straighten out when installed.

	Ht., mm	Face Wd., mm	Fabrication	Color		Each
20° Pressure Angle—Rectangular







	Nylon

	1	500	11	12	10	Machined	Blue	2662N67	0000000