HB5M Hollow Bore Optical Encoder

HB5M Features

Hollow bore (hollow shaft/thru-bore) bearing design
Rugged anodized aluminum housing
Heavy-duty ball bearings track up to 6,000 RPM
Positive latching polarized connector
2-channel quadrature with optional index
Multiple Output Drive Options
32 to 5,000 cycles per revolution (CPR)
128 to 20,000 pulses per revolution (PPR)

See more info below

Configure the HB5M

HB5M Product Description

The HB5M is a hollow bore (hollow shaft/thru-bore) optical encoder with a machined aluminum enclosure and an anodized protective finish. The HB5M optical incremental encoder is designed to easily mount to an existing shaft to provide digital feedback information. Typical applications include motor feedback, process control, robotics, textile machines, and elevator controls.

The HB5M bearing style encoder features a hollow bore that accepts shaft diameters from 5mm to 8mm in diameter. The encoder slips over the shaft and is locked into place with two 4-48 set screws. A flexible anti-rotation mount makes the encoder more tolerant of shaft runout than a standard kit encoder. The HB5M can accommodate shaft axial play up to ±0.030 in. and shaft runout up to 0.010 in. The flexible tether provides mounting for two 4-40 machine screws on a 1.812 in. bolt circle.

The HB5M housing comes standard with a closed cover or an optional hole in the body to allow a shaft to pass completely through the encoder.

A secure connection to the HB5M Series encoder is made through a 5-pin (single-ended versions) or 10-pin (differential or high-voltage versions) latching connector. The mating connectors are available from US Digital with several cable options and lengths.

Product Specifications

ENVIRONMENTAL

PARAMETER	VALUE	UNITS
Operating Temperature, CPR < 2000	-40 to 100	C
Operating Temperature, CPR ≥ 2000	-25 to 100	C
Electrostatic Discharge Single-ended (-S version), IEC 61000-4-2 Differential (-D version), Human Body Model High-Voltage, Open-collector (H, C option), IEC 61000-4-2	± 4 ± 2 ± 4	kV
Vibration (10Hz to 2kHz, sinusoidal)	20	G
Shock (6 milliseconds, half-sine)	75	G

MECHANICAL

Parameter	Value
Max. Acceleration	100000 rad/sec²
Max. Shaft Speed (mechanical)	6000 rpm (1)
Max. Starting Torque	0.20 oz-in
Max. Bore Load	2 lb.
Weight	2.84 oz.
Max. Shaft Runout	0.010 in. T.I.R.
Max. Shaft Axial Play	± 0.030 in.
Required Shaft Length (From mounting surface)	Min. = 0.3 in. Max. = 1.0 in. with default cover. Max. = No limit with H-option cover.
Moment of Inertia	1.29 x 10^-4 oz-in-sec²
Technical Bulletin TB1001 - Shaft and Bore Tolerances	Download

(1) The maximum speed due to electrical considerations is dependent on the CPR. See the EM1 and EM2 product pages.

PHASE RELATIONSHIP

SINGLE-ENDED OPTION

S option provides 5V TTL compatible outputs
Specifications apply over the entire operating temperature range
Typical values are specified at Vcc = 5.0Vdc and 25°C
For complete details, see the EM1 or EM2 product pages

PARAMETER	MIN.	TYP.	MAX.	UNITS	CONDITIONS
Supply Voltage	4.5	5.0	5.5	V
Supply Current		27	33	mA	CPR < 500, no load
		54	62	mA	CPR ≥ 500 and < 2000, no load
		72	85	mA	CPR ≥ 2000, no load
Low-level Output			0.5	V	I_OL = 8mA max., CPR < 2000
			0.5	V	I_OL = 5mA max., CPR ≥ 2000
		0.05		V	no load, CPR < 2000
		0.25		V	no load, CPR ≥ 2000
High-level Output	2.0			V	I_OH = -8mA max. and CPR < 2000
	2.0			V	I_OH = -5mA max. and CPR ≥ 2000
		4.8		V	no load and CPR < 2000
		3.5		V	no load and CPR ≥ 2000
Output Current Per Channel	-8		8	mA	CPR < 2000
Output Current Per Channel	-5		5	mA	CPR ≥ 2000
Output Rise Time		110		nS	CPR < 2000
Output Rise Time		50		nS	CPR ≥ 2000, ± 5mA load
Output Fall Time		100		nS	CPR < 2000
Output Fall Time		50		nS	CPR ≥ 2000, ± 5mA load

DIFFERENTIAL OPTION

D Option provides differential line driver output
Specifications apply over the entire operating temperature range
Typical values are specified at Vcc = 5.0Vdc and 25°C
For complete details, see the EM1 or EM2 product pages

PARAMETER	MIN.	TYP.	MAX.	UNITS	CONDITIONS
Supply Voltage	4.5	5.0	5.5	V
Supply Current		29	36	mA	CPR < 500, no load
		56	65	mA	CPR ≥ 500 and < 2000, no load
		74	88	mA	CPR ≥ 2000, no load
Low-level Output		0.2	0.4	V	I_OL = 20mA max.
High-level Output	2.4	3.4		V	I_OH = -20mA max.
Differential Output Rise/Fall Time			15	nS

HIGH-VOLTAGE OPTION

H option uses a higher supply voltage and provides both single-ended and open-collector outputs
Single-ended outputs are 5V TTL compatible (same as S option). See Pin-out.
Specifications apply over the entire operating temperature range
For complete details, see the EM1 or EM2 product pages

PARAMETER	MIN.	TYP.	MAX.	UNITS	CONDITIONS
Supply Voltage	7.5		30.0	V
Supply Current, 24V power		8	10	mA	CPR < 500, no load
		16	19	mA	CPR ≥ 500 and < 2000, no load
		22	25	mA	CPR ≥ 2000, no load
Open Collector "On" Resistance		2		ohms
Open Collector Sink Current			200	mA
Output Low Voltage			0.4	V	200 mA sink current
Open Collector Pullup Voltage			50	V

PIN-OUTS

5-PIN SINGLE-ENDED S OPTION (1)		10-PIN DIFFERENTIAL D OPTION (2)
Pin	Description	Pin	Description
1	Ground	1	Ground
2	Index	2	Ground
3	A channel	3	Index-
4	+5VDC power	4	Index+
5	B channel	5	A- channel
		6	A+ channel
		7	+5VDC power
		8	+5VDC power
		9	B- channel
		10	B+ channel

10-PIN HIGH-VOLTAGE H OPTION (2)
Pin	Description
1	Ground
2	Ground
3	Index- (open collector)
4	Index+ (single-ended)
5	A- channel (open collector)
6	A+ channel (single-ended)
7	7.5-30V power
8	7.5-30V power
9	B- channel (open collector)
10	B+ channel (single-ended)

(1) 5-pin single-ended mating connector is CON-FC5.
(2) 10-pin differential mating connector is CON-FC10.

PRODUCT CHANGE NOTIFICATIONS

Title	Date	Description	Download
HB5M, HB6M & HD25 - PCN 7315	5/17/2023	As part of our ongoing continuous improvement efforts, we are updating our HB5M, HB6M and HD25 series of optical encoders to make product labeling clearer and permanent. The aluminum housing of these encoders will now be anodized black, and labeling will be laser etched onto the surface, providing more contrast and legibility. Previously pin-outs were machined into the housing and product labeling was printed onto an adhesive label that was placed on the side of the product. Product labeling will also now appear on the top surface of the encoder near the pin-out labeling.	Download
EM1 LED Die - PCN 1016	2/7/2013	As part of US Digital's continual assurance of supply strategy, we have qualified additional sources for our LED die used in our EM1 encoder module, which in turn impacts all of the following products: EM1, E2, E3, E5, E6, H1, H15, H3, H5, H6, HB5M, HB6M, HD25, PE, S1, S2, S5, S6, T5 and T6 The device specification will remain the same, i.e. there will be no change to form, fit or function of the product(s) as specified by US Digital. The appropriate quality and reliability testing has been performed on representative products to ensure normal parametric distribution, consistent with US Digital's quality and reliability standards.	Download
EM1 & EM2 Update - PCN 4199	1/14/2014	Based on our continuous process improvement program, US Digital is changing the current marking method for our EM1 and EM2 encoder modules to a serialization method. This change will allow for each module to have a unique code; the current marking method is based on a date code system that includes all encoder modules produced within a specific week / year. The serialization system will be based on a hexadecimal system.	Download

Additional Information

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.
For ordering information please see the Compatible Cables / Connectors section above.

Datasheets

HB5M-Datasheet.pdf

Assembly Instructions

HB5M Assembly Instructions

3D Model Downloads

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