HB6M Hollow Bore Optical Encoder

Please see the EM1 Component Change Notice.
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  • HB6M Hollow Bore Optical Encoder
  • HB6M Hollow Bore Optical Encoder
  • HB6M Hollow Bore Optical Encoder

Overview

  • Hollow bore (hollow shaft / thru-bore) bearing design
  • Rugged anodized aluminum housing
  • Industrial duty 6805 series bearings
  • Heavy duty ball bearings track up to 6,000 RPM
  • Positive finger-latching polarized connector
  • 2-channel quadrature, TTL squarewave outputs
  • 3rd channel index option
  • Differential line driver output option
  • 64 to 2500 cycles per revolution (CPR); 256 to 10000 pulses per revolution (PPR)

The HB6M is a high resolution hollow bore (hollow shaft / thru-bore)...

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Product Specifications

ParameterValueUnits
Operating Temperature -40 to 100 C
Vibration (5Hz to 2kHz) 20 G
Shock, 11 mSec 50 G
Electrostatic Discharge, Human Body Model
 ± 4
 kV
ParameterDimension
Max. Acceleration 100000 rad/sec²
Max. Shaft Speed 6000 rpm
Max. Starting Torque 0.70 oz-in
Max. Bore Loading 5 lb.
Weight 11.5 oz.
Max. Shaft Total Indicated Runout 0.010 in.
Max. Shaft Axial Play ± 0.030 in.
Max. Shaft Insertion Depth 1.4 in. with default cover.
No limit with H-option cover.
Moment of Inertia 3.7x10^-3 oz-in-sec²

The tether is shipped detached and may be mounted in the four different methods as shown below.

tethermounting.gif

A leads B in a clockwise shaft rotation, and B leads A in counterclockwise shaft rotation viewed from the rear side (opposite flexible mount) of the encoder.

  • Specifications apply over entire operating temperature range.
  • Typical values are specified at Vcc = 5.0Vdc and 25°C.
  • For complete details, see the EM1 product page.
ParameterMin.Typ.Max.UnitsConditions
Supply Voltage 4.5  5.0 5.5 V  
Supply Current   27 30 mA CPR < 1000, no load 
  55 57 mA CPR ≥ 1000, no load
Low-level Output     0.5 V IOL = 8mA max.
High-level Output 2.0     V IOH = -8mA max.
4.2 4.8   V no load
Output Current Per Channel -8   8 mA
Output Rise Time   110   nS  
Output Fall Time   35   nS  
  • Specifications apply over entire operating temperature range.
  • Typical values are specified at Vcc = 5.0Vdc and 25°C.
  • For complete details, see the EM1 product page.
ParameterMin.Typ.Max.UnitsConditions
Supply Voltage 4.5 5.0 5.5 V
Supply Current   29 33 mA CPR < 1000, no load 
  57 60 mA CPR ≥ 1000, no load
Low-level Output   0.2 0.4 V IOL = 20mA max.
High-level Output 2.4 3.4   V IOH = -20mA max.
Differential Output Rise/Fall Time     15  nS  

5-pin Single-ended

Pin Description
1 Ground
2 Index
3 A channel
4 +5VDC power
5 B channel

10-pin Differential:

Pin Description
1 Ground
2 Ground
3 Index-
4 Index+
5 A- channel
6 A+ channel
7 +5VDC power
8 +5VDC power
9 B- channel
10 B+ channel

Product Description

The HB6M is a high resolution hollow bore (hollow shaft / thru-bore) optical encoder with a machined aluminum enclosure and a clear anodized protective finish. The HB6M optical incremental encoder is designed to easily mount to an existing shaft to provide digital feedback information for any motion control application.

Typical applications include servo motor feedback, web process control, robotics, flux vector feedback, high power motors, textile machines and elevator controls.

The HB6M bearing style encoder features a hollow bore that accepts shaft diameters of 0.250" to 0.750" in diameter. The encoder slips over the shaft and is locked into place with two 6-32 set screws. A flexible anti-rotation tether compensates for shaft run out of up to 0.030" axial and 0.010" TIR. The flexible tether provides single point mounting for bolt circles from 2.50" up to 5.00".

The HB6M housing comes standard with a closed cover to limit particle ingress or an optional hole in the body to allow a shaft to pass completely through the encoder.

The mating connector is polarized and latches into the encoder. Depressing the latch tab allows the connector to be unplugged. Mating connector assemblies are available from US Digital stock. Custom cables are also readily available (see the Cables page).

The differential version has an internal differential line driver (26C31) that can source and sink 20mA at TTL levels. The cable that connects to this encoder should have 3 twisted pairs for the data channels plus power and ground. Group each pair of differential signals. The recommended receiver is industry standard 26C32. Maximum noise immunity is achieved when the differential receiver is terminated with a 110 Ohms resistor in series with a 0.0047µF capacitor placed across each differential pair. The capacitor simply conserves power; otherwise power consumption would increase by 20mA per pair, or 60mA for 3 pairs.

Related
Product Notes
  • Cables and connectors are not included and must be ordered separately.
  • US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Purchasing

Configure and Purchase

1. CPR
2. Bore
3. Index


4. Output


5. Housing


Product Part Number

This product requires configuration. Please supply the product options above.

Quantity Base Price
1 $205.00
10 $186.32
50 $171.41
100 $160.00
Over 100 Call for quote
Quantity
Unit Price

$205.00

Subtotal

$205.00

For your convenience, use the above part number to order via phone 800.736.0194

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