Japanese Products Corp.
120 Fiske St., Fairfield, CT 06825-5524 US
Phone:203.334.7537 • Fax:203.334.7792
E-Mail: info@e-jpc.com Web site: www.e-jpc.com
All Categories > Encoders > US Digital Optical Kit Encoders > Item # US Digital E3 Optical Kit Encoder  


Item # US Digital E3 Optical Kit Encoder


  • Quick, simple assembly and disassembly
  • Rugged screw-together housing
  • Accepts .010" axial shaft play
  • Small size
  • 64 to 10000 cycles per revolution (CPR)
  • 256 to 40000 pulses per revolution (PPR)
  • 2 channel quadrature TTL squarewave outputs
  • Optional index (3rd channel)



 Specifications 

Vibration (5Hz to 2kHz)

20 G

Electrostatic Discharge, IEC 61000-4-2

± 4 kV

Maximum Axial Shaft Play

± 0.010 in

Maximum Shaft Eccentricity Plus Radial Play

0.004 in

Maximum Acceleration

250000 rad/sec²

Maximum RPM

CPR < 2500: minimum value of ((18 x 10^6) / CPR) and (60000) rpm
CPR > 2500 and <5000:(21.6 x 10^6) / CPR
rpm
CPR > 5000: (43.2 x 10^6) / CPR
rpm

Typical Product Weight

1.28 oz

Codewheel Moment of Inertia

8.9 x 10^-5 for bore < 12mm oz-in-s2 4.0 x 10^-4 for bore 12 mm oz-in-s2

Hub Set Screw

#3-48 or #4-48

Hex Wrench Size

0.050 in

Encoder Base Plate Thickness

0.135 in

3 Mounting Screw Size

#0-80

2 Mounting Screw Size

#2-56 or #4-40

3 Screw Bolt Circle Diameter (3)

0.823 ± 0.005 in

2 Screw Bolt Circle Diameter

0.750 ± 0.005 in
1.280 ± 0.005
in
1.812 ± 0.005
in

Required Shaft Length (4)

0.445 to 0.525 in
With E-option (3): 0.445 to 0.670
in
With H-option: > 0.445
in

Index Alignment to Hub Set Screw

180 ± Typical mechanical degrees

Torque - Hub Set Screw to Shaft

2-3 in·lb

Torque - Cover (4-40 screws through cover into base)

2-4 in·lb

Torque - Base to Mounting Surface

4-6 in·lb

Torque - Base to Mounting Adapter Plate

4-6 in·lb

Torque - Adapter Plate to Mounting Surface

4-6 in·lb

Torque - Module to Base

3.5-4 in·lb



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