Shaft Encoder Counters | McMaster-Carr

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Counting Direction

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109 Products

Mechanical Position Indicators

Tracking your machine component as it moves along a rotating threaded shaft, such as a spindle or lead screw, these indicators help you adjust machinery with speed and precision. They save time and prevent errors on process lines that you constantly adapt to suit different products, such as packaging lines.

Use the display number as either a reference point or as a true measure of distance. To measure distance, match the indicator’s count per revolution to your lead screw’s threads per inch or thread pitch.

Choose between indicators that count up when your lead screw rotates clockwise or counterclockwise.

For Horizontal Shafts


	Indicator Display (1 Decimal Place)

Indicator Display (2 Decimal Places)	Indicator Display (3 Decimal Places)

303 Stainless Steel Insert—Indicators with a stainless steel insert resist corrosion better than indicators with a black-oxide insert, making them better in humid locations.

							Overall
	No. of Decimal Places	No. of Digits	Max. Counts per min.	Counts per Rev.	Resettable	Counting Direction (Shaft Rotation Direction)	Ht.	Wd.	Dp.	Housing Material	Color	Temp. Range, ° F		Each
For 1/2" Diameter Shafts







				Black-Oxide Steel Insert

				1	4	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N101	000000


				2	4	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N102	00000
				2	4	250	0.5	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N103	00000
				2	4	250	1	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N104	00000


				For 3/4" Diameter Shafts







								Black-Oxide Steel Insert

								1	5	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N17	00000


								1	5	1,500	1	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N107	00000
								2	5	15	0.01	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N11	00000
								2	5	75	0.05	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N12	00000
								2	5	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N13	00000
								2	5	150	0.1	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N26	00000
								2	5	250	0.2	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N14	00000
								2	5	250	0.2	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N27	00000
								2	5	250	0.5	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N15	00000
								2	5	250	0.5	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N28	00000
								2	5	250	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N16	00000


								2	5	250	1	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N108	00000
								3	5	25	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N109	00000




										303 Stainless Steel Insert

										1	5	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N114	000000


										2	5	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N115	000000
										2	5	250	0.5	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N116	000000
										2	5	250	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N117	000000


										For 20 mm Diameter Shafts







												Black-Oxide Steel Insert

												1	5	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N25	00000


		1	5									1,500	1	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N112	00000
		2	5									15	0.01	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N18	00000
		2	5									150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N21	00000
		2	5									150	0.1	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N29	00000
		2	5									250	0.2	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N31	00000
		2	5									250	0.5	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N23	00000
		2	5									250	0.5	No	Up (Counterclockwise), Down (Clockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N32	00000
		2	5									250	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N24	00000




				303 Stainless Steel Insert

				1	5							1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N119	000000

Accessories for Position Indicators

Shaft Locking Clamps

Image of Product. Front orientation. Position Indicator Clamps.

Add shaft locking clamps to keep indicators in place and prevent vibration from shifting them.

For Shaft Dia.		Each
1/2"	6187N65	000000
5/8"	6187N57	00000
3/4"	6187N58	00000
12 mm	6187N59	00000
14 mm	6187N61	00000
20 mm	6187N64	00000

Shaft Reducer Bushings

Image of Product. Front orientation. Position Indicator Bushings.

Add shaft reducer bushings to adapt indicators to fit small diameter shafts.

				Black-Oxide Steel		Stainless Steel
For Shaft Dia.	OD	Lg.	Set Screw Included		Each		Each
1/4"	3/4"	3/4"	Yes	6187N47	000000	———	0
3/8"	3/4"	3/4"	Yes	6187N48	00000	6187N39	000000
1/2"	3/4"	3/4"	Yes	6187N49	00000	6187N41	00000
5/8"	3/4"	3/4"	Yes	6187N51	00000	6187N42	00000
12 mm	20 mm	20 mm	Yes	6187N52	00000	6187N43	00000
14 mm	20 mm	20 mm	Yes	6187N53	00000	6187N44	00000
15 mm	20 mm	20 mm	Yes	6187N54	00000	6187N45	00000
16 mm	20 mm	20 mm	Yes	6187N55	00000	6187N46	00000

For Vertical Shafts


	Indicator Display (1 Decimal Place)	Indicator Display (2 Decimal Places)

303 Stainless Steel Insert—Indicators with a stainless steel insert resist corrosion better than indicators with a black-oxide insert, making them better in humid locations.

							Overall
	No. of Decimal Places	No. of Digits	Max. Counts per min.	Counts per Rev.	Resettable	Counting Direction (Shaft Rotation Direction)	Ht.	Wd.	Dp.	Housing Material	Color	Temp. Range, ° F		Each
For 1/2" Diameter Shafts







				Black-Oxide Steel Insert

				1	4	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N105	000000


				2	4	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	1.9"	1.3"	1.4"	Plastic	Orange	32 to 175	6187N106	00000


				For 3/4" Diameter Shafts







								Black-Oxide Steel Insert

								1	5	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N111	00000


								2	5	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N33	00000
								2	5	250	0.2	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N34	00000
								2	5	250	0.5	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N35	00000




										303 Stainless Steel Insert

										2	5	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N118	000000


										For 20 mm Diameter Shafts







														Black-Oxide Steel Insert

														1	5	1,500	1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N113	00000


														2	5	150	0.1	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N36	00000
														2	5	250	0.2	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N37	00000
														2	5	250	0.5	No	Up (Clockwise), Down (Counterclockwise)	2.6"	1.9"	1.5"	Plastic	Orange	32 to 175	6187N38	00000

Accessories for Position Indicators

Shaft Locking Clamps

Add shaft locking clamps to keep indicators in place and prevent vibration from shifting them.

For Shaft Dia.		Each
1/2"	6187N65	000000
5/8"	6187N57	00000
3/4"	6187N58	00000
12 mm	6187N59	00000
14 mm	6187N61	00000
20 mm	6187N64	00000

Shaft Reducer Bushings

Add shaft reducer bushings to adapt indicators to fit small diameter shafts.

				Black-Oxide Steel		Stainless Steel
For Shaft Dia.	OD	Lg.	Set Screw Included		Each		Each
1/4"	3/4"	3/4"	Yes	6187N47	000000	———	0
3/8"	3/4"	3/4"	Yes	6187N48	00000	6187N39	000000
1/2"	3/4"	3/4"	Yes	6187N49	00000	6187N41	00000
5/8"	3/4"	3/4"	Yes	6187N51	00000	6187N42	00000
12 mm	20 mm	20 mm	Yes	6187N52	00000	6187N43	00000
14 mm	20 mm	20 mm	Yes	6187N53	00000	6187N44	00000
15 mm	20 mm	20 mm	Yes	6187N54	00000	6187N45	00000
16 mm	20 mm	20 mm	Yes	6187N55	00000	6187N46	00000

Digital Position Indicators


	Indicator Display

More customizable than standard indicators, these digital indicators have programmable features that help you adapt them to your application. Like other indicators, they track your machine component as it moves along a rotating spindle, lead screw, or other threaded shaft, which helps you adjust machinery with speed and precision. This saves time and prevents errors on process lines that you constantly adapt for different products, such as packaging lines.

Program the number you want added per revolution—you can use these indicators as a reference point or as a true measure of distance. To measure distance, match the indicator’s count per revolution to your lead screw’s threads per inch or thread pitch. You can adjust them to count from their original position or from their most recent stopping point, which is useful for repeating moves. They also have settings to work with clockwise and counterclockwise rotation, as well as vertical and horizontal shafts.

Rated IP67, all are sealed against dust and water, even if briefly submerged. They meet IEC 61326-1, which is an international standard for electromagnetic immunity and emissions.

					Overall										For 1/2" Diameter Shafts		For 3/4" Diameter Shafts		For 20 mm Diameter Shafts
	No. of Digits	Max. Rotation Speed, rpm	Resettable	Counting Direction (Shaft Rotation Direction)	Ht.	Wd.	Dp.	Housing Material	Color	Batteries Included	Temp. Range, ° F	Digital Display Type	Enclosure Rating	Specs. Met		Each		Each		Each
For Horizontal and Vertical Shafts



		5	1,000	Yes	Up and Down (Clockwise and Counterclockwise)	2.2"	1.4"	1.4"	Plastic	Orange	Yes	32 to 120	LCD	IP67	IEC 61326-1	6073N18	0000000	———	0	———	0


		6	1,000	Yes	Up and Down (Clockwise and Counterclockwise)	2.9"	1.9"	1.6"	Plastic	Orange	Yes	32 to 120	LCD	IP67	IEC 61326-1	———	0	6073N11	0000000	6073N12	0000000

Shaft Reducer Bushings

Add shaft reducer bushings to adapt indicators to fit small diameter shafts.

Stainless Steel—Stainless steel bushings are more corrosion resistant than black-oxide steel bushings, so they’re better in humid locations.

				Black-Oxide Steel		Stainless Steel
For Shaft Dia.	OD	Lg.	Set Screw Included		Each		Each
1/4"	3/4"	3/4"	Yes	6187N47	000000	———	0
3/8"	3/4"	3/4"	Yes	6187N48	00000	6187N39	000000
1/2"	3/4"	3/4"	Yes	6187N49	00000	6187N41	00000
5/8"	3/4"	3/4"	Yes	6187N51	00000	6187N42	00000
12 mm	20 mm	20 mm	Yes	6187N52	00000	6187N43	00000
14 mm	20 mm	20 mm	Yes	6187N53	00000	6187N44	00000
15 mm	20 mm	20 mm	Yes	6187N54	00000	6187N45	00000
16 mm	20 mm	20 mm	Yes	6187N55	00000	6187N46	00000

Digital Position Indicators with Wireless Transmitters

Components Sold Separately

Image of Product. Front orientation. Position Indicators. Digital Position Indicators with Wireless Transmitters.

Indicator Display

Send the real-time position of machine parts moving along spindles, lead screws, and threaded shafts to your computer or programmable logic controller (PLC). These indicators help you make faster, more precise adjustments than you can with standard position indicators. They have built-in transmitters that wirelessly exchange data with a controller (sold separately) plugged into your computer or PLC up to 100 ft. away. These indicators save time and help prevent errors on packaging lines and other processes that you regularly adapt for diverse products. When it’s time to reposition a component, set the new target position on your computer or PLC, and the controller will relay it to these indicators.

More customizable than standard indicators, these digital indicators have programmable features that help you adapt them to your application. You can use these indicators as either a reference point or a true measure of distance. To measure distance, match the indicator’s count per revolution to your lead screw’s threads per inch or thread pitch. You can adjust them to count from their original position or from their most recent stopping point, which is useful for repeating moves. They also have settings to work with clockwise and counterclockwise rotation, as well as vertical and horizontal shafts.

Rated IP67, all are sealed against dust and water, even if briefly submerged.

Controllers (sold separately) are required.

					Overall									For 3/4" Diameter Shafts		For 20 mm Diameter Shafts
	No. of Digits	Max. Rotation Speed, rpm	Resettable	Counting Direction (Shaft Rotation Direction)	Ht.	Wd.	Dp.	Housing Material	Color	Batteries Included	Temp. Range, ° F	Enclosure Rating	Specs. Met		Each		Each
For Horizontal and Vertical Shafts



		6	1,000	Yes	Up and Down (Clockwise and Counterclockwise)	2.9"	1.9"	1.6"	Plastic	Orange	Yes	32 to 120	IP67	IEC 61326-1	6194N11	0000000	———	0


		6	1,000	Yes	Up and Down (Clockwise and Counterclockwise)	2.9"	1.9"	1.6"	Plastic	Orange	Yes	32 to 120	IP67	2014/53/EU	———	0	6194N12	0000000

Accessories for Position Indicators

Controllers

Controllers can be used with up to 36 position indicators.

						Input		Output
	Communication Protocol	Communication Interface	Communication Range, ft.	No. of Indicators Controlled	Total No. of RJ45 Connections	Signal Type	Voltage, V DC	Signal Type	Current, amp	Operating Voltage, V DC	Specs. Met		Each
DIN-Rail Mount



		Ethernet/IP	—	95	36	2	Digital	24	Digital	0.05	24	2014/30/EU, IEC 61326-1	6194N13	000000000


		Modbus TCP/IP	—	95	36	2	Digital	24	Digital	0.05	24	2014/30/EU, IEC 61326-1	6194N15	00000000
		—	Profinet IO	95	36	2	Digital	24	Digital	0.05	24	2014/30/EU, IEC 61326-1	6194N14	00000000

Shaft Reducer Bushings

Add shaft reducer bushings to adapt indicators to fit small diameter shafts.

Stainless Steel—Stainless steel bushings are more corrosion resistant than black-oxide steel bushings, so they’re better in humid locations.

				Black-Oxide Steel		Stainless Steel
For Shaft Dia.	OD	Lg.	Set Screw Included		Each		Each
1/4"	3/4"	3/4"	Yes	6187N47	000000	———	0
3/8"	3/4"	3/4"	Yes	6187N48	00000	6187N39	000000
1/2"	3/4"	3/4"	Yes	6187N49	00000	6187N41	00000
5/8"	3/4"	3/4"	Yes	6187N51	00000	6187N42	00000
12 mm	20 mm	20 mm	Yes	6187N52	00000	6187N43	00000
14 mm	20 mm	20 mm	Yes	6187N53	00000	6187N44	00000
15 mm	20 mm	20 mm	Yes	6187N54	00000	6187N45	00000
16 mm	20 mm	20 mm	Yes	6187N55	00000	6187N46	00000

Rotating-Shaft-Actuated Counters


Screw On 1 Shaft	Screw On 2 Shafts

Precisely count rotations by attaching these counters to clutches, couplings, rotors, or other rotating shafts.

Shaft rotation direction is the direction of rotation when you're looking at the counter from the end of the shaft.

								Shaft		Overall
	Resettable	No. of Digits	Max. Counts per min.	Counts per Rev.	No. of Shafts	Shaft Location	Counting Direction (Shaft Rotating Direction)	Dia.	Lg.	Ht.	Wd.	Dp.		Each
Screw On



		Yes	5	500	10	1	Left Side	Up (Clockwise), Down (Counterclockwise)	1/8"	7/16"	1.5"	3.2"	1.4"	1697T32	0000000


		Yes	5	500	10	1	Right Side	Up (Clockwise), Down (Counterclockwise)	1/8"	7/16"	1.5"	3.2"	1.4"	1697T65	000000
		Yes	5	500	10	1	Right Side	Up (Counterclockwise), Down (Clockwise)	1/8"	7/16"	1.5"	3.2"	1.4"	1697T64	000000
		Yes	7	1,000	1	2	Left Side, Right Side	Up (Clockwise and Counterclockwise)	0.28"	11/16"	3.2"	5.1"	1.9"	1697T84	000000

Rotary Encoders

Provide motion feedback to counters, controllers, and motor drives for automated motion control and measurement applications. Also known as encoders, transmitters convert rotary motion to an electrical signal so you can operate your system based on distance, direction, and speed of travel. These transmitters have pull-up resistor output. Since they have two shafts, you can mount them on either side to fit your setup.

Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.

Aluminum Body and Stainless Steel Shaft


Shown with Wheel and Mounting Bracket (Both Sold Separately)

Quadrature Output Channel—Transmitters with a quadrature output channel must be used with a controller that has quadrature detection to get a 4X resolution increase.

						Shaft			Overall		Mounting Plate		Mounting Holes
	For Counter Function	Encoder Output Channel	Resolution Increase	For Max. Shaft Speed, rpm	Input Voltage, V DC	Coupling Req.	Dia.	Lg.	Lg.	Ht.	Lg.	Wd.	Ctr.-to-Ctr.	Thread Size	Choose a Resolution		Each
Single Output Channel—250 mA Output Current



		Up	A	2X	6,000	5 to 28	Yes	3/8"	3/4"	3.95"	2.93"	2 1/4"	2 1/4"	1.41"	6-32	10 , 60 , 100 , 120 , 500 , 600 , 1,200	16695T46	0000000


		Quadrature Output Channel—250 mA Output Current



				Up and Down	A, B	2X, 4X	6,000	5 to 28	Yes	3/8"	3/4"	3.95"	2.93"	2 1/4"	2 1/4"	1.41"	6-32	10 , 60 , 100 , 120 , 500 , 600 , 1,200	16695T47	000000

Accessories for Rotary Encoders

Mount a wheel (not included) to use transmitters to measure lengths.

Use cables (not included) to connect transmitters to counters and controllers.

		Each
12" Circumference Polyurethane Wheel (3.82" Dia. × 0.7" Wd.)	16695T28	0000000
Aluminum Mounting Bracket (3 1/2" Lg. × 2 1/2" Wd. × 4 1/2" Ht.)	16695T13	000000
10ft. Cable	16695T14	000000
20ft. Cable	16695T27	000000

Compact Rotary Encoders

Track distance, direction, and speed in tight spaces on machinery. Cylindrical and about half the size of standard position-measuring transmitters, these are often used on robot arms and crowded conveyors. Also known as encoders, they send motion data to your system by converting rotary motion into an electrical signal.

Incremental Optical Encoders with Shaft


Wire Lead Connection—NPN Open Collector	5-Pole Micro M12 Plug-In Connection—IO Link

Incremental transmitters track how much a rotating shaft has turned relative to a reference point. They need to be reset after a power loss.

Transmitters with a shaft connect to a motor’s shaft with a flexible shaft coupling to fit different diameters.

NPN Open Collector—Transmitters with an NPN open collector pair with a resistor. Use these transmitters with a controller that has quadrature detection to get a 4X resolution increase.

IO Link Communication Protocol—Transmitters with IO link let you set their resolution remotely when connected to a PLC, a human-machine interface (HMI), or a computer.

IP64 Enclosure Rating and IP65 Enclosure Rating—IP-rated transmitters are protected from dust and water.

	Encoders																Connectors
											Mounting Holes
	Shaft Dia.	Rotary Encoder Type	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	Encoder Output Channel Type	For Max. Shaft Speed, rpm	Body Material	Housing Material	Enclosure Rating	No. of	Thread Size	Fasteners Included	Choose a Resolution		Each		Each
Wire Lead Connection—NPN Open Collector



		1/4"	Single Turn	5 to 28	65	20	Quadrature with Index	8,000	Aluminum	Plastic	IP64	3	M3 × 0.5 mm	No	500 , 1,000 , 2,000 , 2,500	9749T3	0000000	———	0


		5-Pole Micro M12 Plug-In Connection—IO Link



				6 mm	Single Turn	5 to 30	150	50	—	12,000	Stainless Steel	Aluminum	IP65	3	M4 × 0.7 mm	No	1 to 10,000	9749T519	000000	4490N15	000000


				10 mm	Single Turn	5 to 30	150	50	—	12,000	Stainless Steel	Aluminum	IP65	3	M4 × 0.7 mm	No	1 to 10,000	9749T521	000000	4490N15	00000

Incremental Optical Encoders with Shaft Opening


Wire Lead Connection—NPN Open Collector	5-Pole Micro M12 Plug-In Connection—IO Link

Incremental transmitters track how much a rotating shaft has turned relative to a reference point. They need to be reset after a power loss.

Transmitters with a shaft opening slide onto your motor's shaft. Their mounting plate flexes to compensate for your motor's vibration.

NPN Open Collector—Transmitters with an NPN open collector pair with a resistor. Use these transmitters with a controller that has quadrature detection to get a 4X resolution increase.

IO Link Communication Protocol—Transmitters with IO link let you set their resolution remotely when connected to a PLC, a human-machine interface (HMI), or a computer.

IP64 Enclosure Rating and IP65 Enclosure Rating—IP-rated transmitters are protected from dust and water.

	Encoders																				Connectors
														Mounting Holes
	For Shaft Dia.	Rotary Encoder Type	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	Encoder Output Channel Type	For Max. Shaft Speed, rpm	Body Material	Housing Material	Enclosure Rating	Mounting Plate Dia.	Mounting Plate Wd.	For Screw Size	No. of	Ctr.-to-Ctr.	Thread Size	Fasteners Included	Choose a Resolution		Each		Each
Wire Lead Connection—NPN Open Collector



		1/4"	Single Turn	5 to 28	65	20	Quadrature with Index	8,000	Aluminum	Plastic	IP64	—	2.16"	No. 6	2	1.81"	—	No	500 , 1,000 , 2,000 , 2,500	9749T1	0000000	———	0


		3/8"	Single Turn	5 to 28	65	20	Quadrature with Index	8,000	Aluminum	Plastic	IP64	—	2.16"	No. 6	2	1.81"	—	No	500 , 1,000 , 2,000 , 2,500	9749T2	000000	———	0


		5-Pole Micro M12 Plug-In Connection—IO Link



				6 mm	Single Turn	5 to 30	150	50	—	12,000	Stainless Steel	Aluminum	IP65	1.43"	—	—	4	—	M2.5 × 0.5 mm	No	1 to 10,000	9749T522	000000	4490N15	000000


				10 mm	Single Turn	5 to 30	150	50	—	12,000	Stainless Steel	Aluminum	IP65	1.43"	—	—	4	—	M2.5 × 0.5 mm	No	1 to 10,000	9749T523	000000	4490N15	00000

Absolute Optical Encoders with Shaft


Wire Lead Connection—Synchronous Serial Interface (SSI)	5-Pole Micro M12 Plug-In Connection—IO Link

Absolute transmitters give you the exact position of the shaft, even after a power loss.

Transmitters with a shaft connect to a motor’s shaft with a flexible shaft coupling to fit different diameters.

IO Link Communication Protocol—Transmitters with IO link let you set their resolution remotely when connected to a PLC, a human-machine interface (HMI), or a computer.

Multi-Turn Rotary Encoder—Multi-turn absolute transmitters count how many full turns a shaft makes. They’re often used to keep print rollers aligned over multiple rotations.

IP65 Enclosure Rating—IP-rated transmitters are protected from dust and water.

	Encoders															Connectors
										Mounting Holes
	Shaft Dia.	Rotary Encoder Type	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	For Max. Shaft Speed, rpm	Body Material	Housing Material	Enclosure Rating	No. of	Thread Size	Fasteners Included	Bit Resolution, bit		Each		Each
Wire Lead Connection—Synchronous Serial Interface (SSI)



		1/4"	Single Turn	5 to 32	50	100	12,000	Aluminum	Stainless Steel	IP65	4	M3 × 0.5 mm	No	12	9749T515	0000000	———	0


		1/4"	Multi-Turn	5 to 32	50	100	12,000	Aluminum	Stainless Steel	IP65	4	M3 × 0.5 mm	No	24	9749T516	000000	———	0
		6 mm	Single Turn	5 to 32	50	100	12,000	Aluminum	Stainless Steel	IP65	4	M3 × 0.5 mm	No	12	9749T517	000000	———	0
		6 mm	Multi-Turn	5 to 32	50	100	12,000	Aluminum	Stainless Steel	IP65	4	M3 × 0.5 mm	No	24	9749T518	000000	———	0


		5-Pole Micro M12 Plug-In Connection—IO Link



				6 mm	Multi-Turn	18 to 30	75	50	12,000	Stainless Steel	Aluminum	IP65	3	M4 × 0.7 mm	No	1 to 31	9749T525	000000	4490N15	000000


				10 mm	Multi-Turn	18 to 30	75	50	12,000	Stainless Steel	Aluminum	IP65	3	M4 × 0.7 mm	No	1 to 31	9749T524	000000	4490N15	00000

Absolute Optical Encoders with Shaft Opening

Wire Lead

Connection—Synchronous

Serial Interface (SSI)

Absolute transmitters give you the exact position of the shaft, even after a power loss.

Transmitters with a shaft opening slide onto your motor's shaft. Their mounting plate flexes to compensate for your motor's vibration.

Multi-Turn Rotary Encoder—Multi-turn absolute transmitters count how many full turns a shaft makes. They’re often used to keep print rollers aligned over multiple rotations.

											Mounting Holes
	For Shaft Dia.	Rotary Encoder Type	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	For Max. Shaft Speed, rpm	Body Material	Housing Material	Mounting Plate Wd.	For Screw Size	No. of	Ctr.-to-Ctr.	Fasteners Included	Bit Resolution, bit		Each
Wire Lead Connection—Synchronous Serial Interface (SSI)



		1/4"	Single Turn	5 to 24	100	420	8,000	Aluminum	Plastic	2.16"	No. 6	2	1.81"	No	12	9749T511	0000000


		1/4"	Multi-Turn	5 to 24	100	420	8,000	Aluminum	Plastic	2.16"	No. 6	2	1.81"	No	24	9749T512	000000
		3/8"	Single Turn	5 to 24	100	420	8,000	Aluminum	Plastic	2.16"	No. 6	2	1.81"	No	12	9749T513	000000
		3/8"	Multi-Turn	5 to 24	100	420	8,000	Aluminum	Plastic	2.16"	No. 6	2	1.81"	No	24	9749T514	000000

Rotary Encoder Kits


Shown with Wheel (Sold Separately)

In addition to a transmitter, these kits include a 6 _1/2-ft. cable and a mounting bracket. Also known as encoders, transmitters convert motion to an electrical signal to indicate distance, direction, and speed in process control and metering applications. These kits are commonly used to monitor the position or velocity of rotating equipment. You can also mount a wheel (not included) to measure distance in linear applications. Transmitters must be used with a controller that has quadrature detection to get a 4X resolution increase. Output channel Z is also known as an index channel.

Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.

	Encoder Output Channel	Resolution Increase	For Max. Shaft Speed, rpm	Input Voltage, V DC	Output Current, mA	Resistor Included	Body Material	Shaft Material	Fasteners Included	Fasteners Req.	For Mounting Screw Size	Choose a Resolution		Each
Quadrature with Index Output Channel



	Up and Down	A, B, Z	2X, 4X	6,000	5 to 28	20	No	Plastic	Stainless Steel	No	Yes	1/4"	500 , 600 , 1,000 , 1,800 , 2,500	16695T57	0000000

Wheels

		Each
6" Circumference Polyurethane Wheel (1.91" Dia. × 1/4" Wd.)	16695T56	000000

Programmable Rotary Encoders

With adjustable settings for resolution and output type, these transmitters can be programmed to suit your changing processes. Also known as encoders, they convert a shaft’s rotary motion into an electrical signal that indicates distance, direction, and speed. They’re rated IP67, so they can withstand temporary submersion in water.

Encoders with Shaft

Transmitters with a shaft connect to motor shafts with a flexible shaft coupling, so they can be adapted to different diameters.

	Encoder Output Signal	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	For Max. Shaft Speed, rpm	Body Material	Housing Material	Enclosure Rating	Mounting Hole Thread Size	Fasteners Included	Resolution		Each
Incremental Optical Encoder



	1/4"	Line Driver, NPN Open Collector, Push-Pull	5 to 30	65	20	8,000	Aluminum	Aluminum	IP67	10-32	No	1 to 65,536	9924N121	0000000


	3/8"	Line Driver, NPN Open Collector, Push-Pull	5 to 30	65	20	8,000	Aluminum	Aluminum	IP67	10-32	No	1 to 65,536	9924N122	000000

Rotary Encoder Programming Kits

You’ll need a programming kit (sold separately) to set up these transmitters. They include software stored on a flash drive, as well as a cable and USB adapter for connecting your transmitter to a computer. The software requires a Windows 7 or higher operating system.

Data Connection		Each
USB-A	9924N125	0000000

Encoders with Shaft Opening

Transmitters with a shaft opening can be mounted anywhere along a motor shaft—just slide them on. They have a flexible mounting plate that compensates for shaft misalignment and vibration.

	Encoder Output Signal	Input Voltage, V DC	Max. Input Current, mA	Output Current, mA	For Max. Shaft Speed, rpm	Body Material	Housing Material	Enclosure Rating	Mounting Plate Wd.	For Screw Size	Fasteners Included	Resolution		Each
Incremental Optical Encoder



	1/4"	Line Driver, NPN Open Collector, Push-Pull	5 to 30	65	20	6,000	Aluminum	Aluminum	IP67	2.83"	No. 6	No	1 to 65,536	9924N123	0000000


	3/8"	Line Driver, NPN Open Collector, Push-Pull	5 to 30	65	20	6,000	Aluminum	Aluminum	IP67	2.83"	No. 6	No	1 to 65,536	9924N124	000000

Rotary Encoder Programming Kits

Data Connection		Each
USB-A	9924N125	0000000

Sanitary Rotary Encoders

Also known as encoders, these sanitary transmitters convey motion to an electrical signal that conveys distance, direction, and speed. They’re often used in control systems to automate servomotors, robotics, and assembly machines in sanitary environments such as food and pharmaceutical plants. Made of corrosion-resistant stainless steel, they won’t rust from frequent washdowns with harsh cleaners. These transmitters are sealed and have a highly polished surface, leaving no room for bacteria to grow and making them easier to clean. They’re rated IP67 for protection from dust, high-pressure jets of water, and submersion in up to a meter of water for 30 minutes.

To achieve a 4X resolution increase, use these transmitters with a controller that has quadrature detection.

Use a flexible shaft coupling to connect the transmitter shaft to a drive shaft.

316 Stainless Steel Body and 303 Stainless Steel Shaft

							Shaft			Overall		Mounting Plate		Mounting Holes
	For Counter Function	Encoder Output Channel	Resolution	Resolution Increase	For Max. Shaft Speed, rpm	Input Voltage, V DC	Coupling Req.	Dia.	Lg.	Lg.	Ht.	Lg.	Wd.	No. of	Ctr.-to-Ctr.	Dia.	Certification		Each
Quadrature with Index Output Channel—20 mA Output Current



		Up and Down	A, B, Z	600	2X, 4X	8,000	4.75 to 28	Yes	3/8"	1 1/16"	3.175"	3 1/4"	2 1/2"	2 1/2"	4	2.06"	7/32"	CE Marked	4136N111	000000000


		Up and Down	A, B, Z	3,600	2X, 4X	8,000	4.75 to 28	Yes	3/8"	1 1/16"	3.175"	3 1/4"	2 1/2"	2 1/2"	4	2.06"	7/32"	CE Marked	4136N116	00000000

Cables