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R20

Size 20 up to 1200 CPR. Servo ring, face mount and IP66 seal options

Build Encoder

R20
Shaft
Shaft Style
Output Type
-
CPR
Anti-Jitter
/
Supply Voltage
Output Circuit
Connector

Shaft Size

Output Type

Counts Per Revolution

Pulses Per Revolution H0

Pulses Per Revolution H1 + $46.46

Pulses Per Revolution H1A + $77.44

Pulses Per Revolution H1B + $77.44

Pulses Per Revolution H2 + $54.21

Pulses Per Revolution H3 + $61.95

Non-Standard PPR H0! + $62.41

Non-Standard PPR H1! + $108.88

Non-Standard PPR H1A! + $139.85

Non-Standard PPR H1B! + $139.85

Non-Standard PPR H2! + $116.62

Non-Standard PPR H3! + $124.36

Supply Voltage

Output Circuit

Cable or Connector Termination

10ft shielded cable

[S] 16mm circular connector

[S3] 4 pin M12 connector + $7.74

Measuring Wheels & Shaft Couplings

Mounting Options

Cable Assembly

Qty:

$225.33

R20

Suggested Accessories

Note: Items typically ship in 3 to 10 days from receipt of order. If you need it faster, please contact us via phone to place your order.

Product Description

Specifications

Drawings

Wheels and Couplings Information

Mounting Information

Cable Assembly Information

The model R20 is an optical shaft encoder in a 2" diameter x 1-3/4" long housing that can be face mounted using three 6-32 x .25" deep mounting holes on a 1.75" diameter bolt circle. The shaft is up to 3/8" diameter, either single or double ended. Electrical connection is through a 16mm circular connector or an attached cable.

Features and Options:

Shaft size from 0.250" to 0.375"
Metric shaft size from 4mm to 8mm
Unbreakable code disk

Resolution up 1200 CPR
Servo ring and face mount options
IP66 environmental seal option

Enhanced anti-jitter option
Made in the USA

R20 Datasheet

Mechanical:

Maximum Speed: 6,000 rpm

Shaft Loading:
  Radial: 40 lbs. / 18.1 kg
  Axial: 30 lbs. / 13.6 kg
  Note: a flexible shaft coupling is recommended

Bearing Life:: 32 x 1,000,000/rpm = hours

Materials::
Case: Aluminum, anodized
Shaft: 303 Stainless steel

Weight: 10 oz. (285 grams)

Enclosure: IP50 standard, IP64 available

Electrical Connections:

Singled Ended Outputs:

Opt. 6-pin

1
2
3
4
5
6

Opt. M12 4-pin

3
1
-
4
2
-

Function

Common
+vdc
Output Z
Output A
Output B
not used

Wire Color

Black
Red
Brown
White
Green
-

6-pin connector is Amphenol T3402000 or equivalent
M12 4-pin is Turck FS4.4/18.25 or equivalent

Differential Line Driver Outputs

Opt. 8-pin

1
2
3
4
5
6
7
8

Function

Output +A
Output +B
Output +Z
Supply Voltage
Common
Output -A
Output -B
Output -Z

Wire Color

White
Green
Yellow
Red
Black
Blue or Green
Brown
Orange

8-pin connector is Amphenol T3506000 or equivalent

Electrical:

Supply Voltages: (specify when ordering)
5 VDC or 8-30 VDC

Current: 50 mA max (no load)
100 mA max (line driver)

Pulse Rate: 0 - 30 kHz

Counts per Revolution: (specify when ordering)
1 to 1200

Operating Temperature: 0° to 70° C

Output Circuit: (specify when ordering)
  Single Ended:
  7273 open collector (30 VDC max, 50 mA max)
  7272 Push-Pull  (50 mA max source or sink)
  Differential Line Driver:
  7272 differential line driver (output level same as supply voltage)
  RS422 differential line driver (with regulated 5vdc output level)

Output Format: Two channel quadrature square waves (A,B) with optional index (Z). Optional complimentary outputs (-A,-B,-Z). Output A leads B by 90° for clockwise rotation when viewed from shaft end.

Symmetry: 180°±30%

Pulse interval jitter: 30% max

Quadrature: 90°±30% max

Phase jitter: 30% max

Anti-jitter: (single output models only) Increases the pulse hysteresis to ½ of a pulse width, eliminating the effects of mechanical vibration and possible false output pulses. For example a 10 pulse per revolution output has 18° hysteresis (i.e. 360° ÷ 10 × ½ ).

Enhanced Anti-jitter: see our website or contact us for more information.

Accessories:

See our website or contact us for more information about cables, flexible couplings, and measuring wheels.

R20 + Connector

R20 + connector

R20 + Cable

R20+Cable

Here is a listing of the suggested Measuring Wheels & Shaft Couplings. For more information, please click on the part number.

Shaft Couplings:

Flexible	Shaft Dia	Dimensions DxL (in.)
AE087-10-10	5/16"	3/4"D x 1"L
AE087-12-10	5/16" and 3/8"	3/4"D x 1"L
AE087-8MM-8MM	8mm	3/4"D x 1"L
AE100-12-12	3/8"	1"D x 1.25"L
AE100-12-10MM	3/8" and 10mm	1"D x 1.25"L

Rigid	Description
MB-085	couples a 3/8" dia. encoder shaft to a 1" dia. shaft
MB-085-.375	couples a 3/8” dia. encoder shaft to a 3/8” dia. shaft
MB-085-.75	couples a 3/8” dia. encoder shaft to a 3/4” dia. shaft
MB-085-M30	couples a 3/8” dia. encoder shaft to a 30mm dia. shaft

8" Measuring Wheel:

MW-8-B

3/8" bore

10" Measuring Wheel:

MW-10-B

3/8" bore

12" Measuring Wheels:

MW-1-C	1/4" bore
MW-1R-C	1/4" bore, replaceable O-Ring
MW-1W-C	1/4" bore, 1" wide
MW-1-A	5/16" bore
MW-1R-A	5/16" bore, replaceable O-Ring
MW-1W-A	5/6" bore, 1" wide

MW-1-B	3/8" bore
MW-1R-B	3/8" bore, replaceable O-Ring
MW-1W-B	3/8" bore, 1" wide
MW-1-6MM	6mm bore
MW-1W-6MM	6mm bore, 1" wide
MW-1-8MM	8mm bore
MW-1W-8MM	8mm bore, 1" wide

20cm Measuring Wheel:

MW-20-B

3/8" bore

30cm Measuring Wheels:

MW-30-C	1/4" bore
MW-30R-C	1/4" bore, replaceable O-Ring
MW-30W-C	1/4" bore, 1" wide
MW-30-A	5/16" bore
MW-30R-A	5/16" bore, replaceable O-Ring
MW-30W-A	5/6" bore, 1" wide

MW-30-B	3/8" bore
MW-30R-B	3/8" bore, replaceable O-Ring
MW-30W-B	3/8" bore, 1" wide
MW-30-6MM	6mm bore
MW-30W-6MM	6mm bore, 1" wide
MW-30-8MM	8mm bore
MW-30W-8MM	8mm bore, 1" wide

Here is a listing of the suggested Mounting Options. For more information, please click on the part number.

Flexible/Rigid Mounting Brackets & Tethers:

MB-FB2: Flexible mounting tether for C-face motor mount	MB-FB2B: Rigid mounting tether
MB-FB2A: Flexible mounting tether for C-face motor mount, flattened

Flange & Servo Adapters:

MB-75: Face mounting adapter, servo, 1.46"D bolt circle	MB-FL3: Flange adapter, 2.25" x 3.25"
MB-78: Face mounting adapter, 1.875"D bolt circle	MB-FL4: Flange adapter, 2.25" x 2.25"
MB-76: Face mounting adapter, 2.25"D bolt circle	MB-FL6: Flange adapter, 2.5" square with 1.25" male pilot
MB-KOYO: Face mounting adapter for Koyo, 40mm BC	MB-FL2: Flange adapter, 2.5" square, 10mm, 1/2" shaft
MB-FL: Flange adapter, 2.5 inch square	MB-5PY: 5PY adapter

Wheel Mounting Options:

MB-RD: Measuring wheel arm	MB-UB2G: Offset mounting bracket - 7" arm
MB-RD2: Measuring wheel arm for Y-1G or MB-UB2	MB-UB2AG: Offset mounting bracket - 11.25" arm
Y-1G: Wheeled encoder mounting yoke, ¼-28 cap screw, used with MB-RD2	MB-UB3G: Under-belt mounting bracket, spring loaded
Y-2G: Wheeled encoder mounting yoke, under belt, used with MB-RD2
Y-3G: Wheeled encoder mounting yoke, 3/8-16 cap screw, used with MB-RD2

Conveyor Accessories:

MB-FL8: Mounting adapter kit for conveyor roller bearing

MB-FL8A: Mounting adapter kit for conveyor roller bearing with shaft guards

Here is a listing of the suggested Cable Assembly electrical connections. For more information, please click on the connectors.

12mm, 4-pin
M12.4-3-10 RC: 3 wire, 10ft	M12.4-4-10 RC: 4 wire, 10ft
M12.4-3-20 RC: 3 wire, 20ft	M12.4-4-20 RC: 4 wire, 20ft
M12.4-3-3M RC: 3 wire, 3M	M12.4-4-3M RC: 4 wire, 3M
M12.4-3-6M RC: 3 wire, 6M	M12.4-4-6M RC: 4 wire, 6M

16mm, 6-pin
D6-3-10: 3 wire, 10ft	D6-4-10: 4 wire, 10ft	D6-5-10: 5 wire, 10ft
D6-3-20: 3 wire, 20ft	D6-4-20: 4 wire, 20ft	D6-5-20: 5 wire, 20ft
D6-3-3M: 3 wire, 3M	D6-4-3M: 4 wire, 3M	D6-5-3M: 5 wire, 3M
D6-3-6M: 3 wire, 6M	D6-4-6M: 4 wire, 6M	D6-5-6M: 5 wire, 6M

16mm, 8-pin
D8-4-10: 4 wire, 10ft	D8-6-10: 6 wire, 10ft	D8-8-10: 8 wire, 10ft
D8-4-20: 4 wire, 20ft	D8-6-20: 6 wire, 20ft	D8-8-20: 8 wire, 20ft
D8-4-3M: 4 wire, 3M	D8-6-3M: 6 wire, 3M	D8-8-3M: 8 wire, 3M
D8-4-6M: 3 wire, 6M	D8-6-6M: 6 wire, 6M	D8-8-6M: 8 wire, 6M

Your information successfully submitted. Thank you!

R20

Build Encoder

Suggested Accessories

Mechanical:

Electrical Connections:

Electrical:

Accessories: