Bei H20 Incremental Optical Encoder

BEI H20 Incremental Optical Encoder
The H20 is an all metal, extremely rugged encoder designed to economically fill the resolution range up to 4096 cycles per turn. This compact unit features a shock resistant disc, heavy duty bearings, and EMI shielding. The H20 conforms to NEMA 4 and 13 requirements. The H20 is also available in a hub shaft style with a flexmount (inset) for easy mountingdirectly to small motors. Typical applications of the H20 include machine control, process control, agricultural machinery, textile equipment, robotics, food processing, and metering.

H20 Incremental Ordering Options
H20
TYPE: H = Heavy Duty 20 = 2.00" DIA. SHAFT DIA: 0.2497 25 = 0.2495 37 = 0.3747 0.3745 39 = 0.3935 0.3932 FACE MOUNT: F5, F12, F28 Blank = None See Dimensions

FOR ASSISTANCECALL 800-350-2727

Use this diagram, working from left to right to construct your model number (example: H20DB-37-SS-500-ABZC-28V/V-SM18-24V). All notes and tables referred to can be found on pages 50-51.

CYCLES PER TURN: (Enter Cycles) See table A on this page NO. OF CHANNELS: A = Single Channel AB = Dual Quad. Ch. ABZ = Dual with Index AZ = Single with Index See note 3

OUTPUT TERMINATIONLOCATION: E = End S = Side VOLTAGE/OUTPUT: 28V/V = 5-28Vin/out 28V/5 = 5-28Vin/5Vout 28V/OC = 5-28Vin/OCout

HOUSING CONFIG: D =Square Flange E=2.00 Dia. See Dimensions X= Express Encoder

PILOT CONFIG: A=1.181 (30mm) Female (No shaft seal available) B =1.25

SHAFT TYPE: TS=Thru Shaft HS=Hollow Shaft HBS=Hub Shaft Blank = single ended shaft (standard)

SPECIAL FEATURES: S = Special featuresspecified on purchase order. (Consult factory) See note 6

SHAFT SEAL: SS = Shaft Seal (must use pilot B, except HBS units can take SS with pilot A) See note 2

COMPLEMENTS: C =Complementary Outputs Included with 7272 Only Blank = None See note 4

OUTPUT TERMINATION: M14 = MS3102R14S-6P M16 = MS3102R16S-1P M18 = MS3102R18-1P C= Pigtail Cable CS =Cable with Seal (Side or End Term) Add cablelength (i.e., C18=18" cable) See tabe 1 & note 9

EXPRESS ENCODERS® Items highlighted with

are standard Express Encoders and ship in one to three days.

T2 option is available as a standard H20 Express Encoder. See page 32-33.

Table A

H20 Disc Resolutions

1* 2 3 5 6 8 10 11 12 24 25 30 32 40 50 60 64 70 75 80 100 105 112 115 120 125 150 192 200 240 250 256 300 336 360 400 410 500510 512 600 720 785 1000 1024 Resolutions Shown in RED are not available as Express Encoders
*No index. For interpolation please specify the multiplied output (up to 4,096 for H20) in the model number, i.e. 4,096-T4.
Copyright © 2007 by BEI Industrial Encoders | 1-800-ENCODER | www.beiied.com

Incremental Encoders
Housing Type
1.25

TOLERANCES: .XX=±0.01, .XXX=±0.005

MechanicalSpecifications
Shaft Diameter: 1/4" thru 3/8" and metric versions. Hollow shaft, hub shaft or thru-shaft versions available. Flat On Shaft: 0.75 x 0.03 deep Shaft Loading: up to 40 lbs. axial and 40 lbs. radial Shaft Runout: .001 T.I.R. maximum Starting Torque at 25°C: 1.0 in-oz maximum without shaft seal; 2.5 in-oz maximum with shaft seal; 4.0 in-oz thru-shaft Bearings: 52100 bearing steel Shaftmaterial: 303 stainless steel Bearing Housing: Die cast aluminum with iridite finish; stainless steel (special feature) Cover: Die cast aluminum with iridite finish (For MS or CS terminations), otherwise drawn aluminum with iridite finish; stainless steel (special feature) Bearing Life: 1.5 X 109 revs at rated load (10,000 hrs at 2500 RPM) Maximum RPM: 8,000 (see Frequency Response) Moment of Inertia:2.0 x 10-4 oz-in-sec2 Weight: 9 oz. typical

H20E
SM14 or 16=1.52 SM18=2.06

1.03

H20D
0.34

1.95 Ø 2.000 Ø 1.85

1/4" TO 3/8" (SPECIFY)
1.750 0.875

0.100 1.75

0.30 1.75 0.75

Ø 0.156

1.03 2.06

Optional Face Mounts
F5

F12

F28

6-32 UNC-2B 0.25 DEEP ON 2.000 BC

10-32 UNC-2B 0.25 DEEP ON 1.625 BC

4-40 UNC-2B 0.25 DEEP ON 1.500 BC

Hollow Shaft
CLAMP (P/N...