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Spiral Beam Coupling 8-8mm

ID: 3423_0

This aluminium beam coupling connects two 8mm shafts together with set screws.

Discontinued

This beam type coupling can be used to connect two 8mm shafts together. Each shaft is held in place by two set screws, allowing for easy installation. The spiral cut design allows for up to 2° of bending from angular misalignment and up to 0.12mm eccentric misalignment.

If you're having trouble with slipping, you can file a groove into the shaft where the set screws hold it in place. You can also use a Loctite adhesive on the set screws to ensure that they remain in place.

Rotary Shaft

If you're building a rotary transmission system of any kind, chances are you'll need some rotary shaft. Here's a list of rotary shaft compatible with this shaft coupler:

Product Physical Properties
Part Number Price Diameter
TRM4000_0
8mm Precision Ground Rotary Shaft
$6.50/Meter 8 mm

Ball Screws

Ball screws provide an easy means of converting rotary motion into precise linear positioning. You can use this shaft coupler to connect a motor shaft to the following ball screws:

Product Physical Properties
Part Number Price Length
LMN4100_0
Ball Screw SFU01204 x 200mm w/Nut
$33.30 200 mm
LMN4101_0
Ball Screw SFU01204 x 300mm w/Nut
$37.00 300 mm
LMN4102_0
Ball Screw SFU01204 x 400mm w/Nut
$40.70 400 mm
LMN4103_0
Ball Screw SFU01204 x 500mm w/Nut
$44.40 500 mm
LMN4104_0
Ball Screw SFU01204 x 600mm w/Nut
$46.65 600 mm
LMN4105_0
Ball Screw SFU01204 x 800mm w/Nut
$53.30 800 mm
LMN4106_0
Ball Screw SFU01204 x 1000mm w/Nut
$59.20 1 m

Stepper Motors

Stepper motors have high torque and precise position control. This shaft coupler can connect to the main shaft of the following stepper motors:

Product Physical Properties Motor Properties Electrical Properties Gearbox Properties
Part Number Price Shaft Diameter Mounting Plate Size Rated Torque Recommended Voltage Gearbox Type Gear Ratio
3325_0
NEMA17 - 1.8 Degree - 1.68A Stepper - 5.18:1 Gearbox
$40.00 8 mm NEMA - 17 18 kg·cm 24 V DC Planetary 5 211 : 1
3326_0
NEMA17 - 1.8 Degree - 1.68A Stepper - 14:1 Gearbox
$42.00 8 mm NEMA - 17 30 kg·cm 24 V DC Planetary 13 212289 : 1
3327_0
NEMA17 - 1.8 Degree - 1.68A Stepper - 27:1 Gearbox
$44.00 8 mm NEMA - 17 30 kg·cm 24 V DC Planetary 26 103121 : 1
3328_0
NEMA17 - 1.8 Degree - 1.68A Stepper - 51:1 Gearbox
$46.00 8 mm NEMA - 17 48 kg·cm 24 V DC Planetary 50 43974913 : 1
3329_0
NEMA17 - 1.8 Degree - 1.68A Stepper - 100:1 Gearbox
$48.00 8 mm NEMA - 17 48 kg·cm 24 V DC Planetary 99 10442057 : 1

Brushless DC Motors

Brushless DC motors combine smooth rotation with accurate position control. This shaft coupler can connect to the following BLDC Motors:

Product Physical Properties Motor Properties
Part Number Price Shaft Diameter Rated Torque Rated Speed
DCM4101_0
NEMA17 - Brushless DC Motor - 4.9:1 Gearbox
$72.00 8 mm 5.6 kg·cm 810 RPM
DCM4102_0
NEMA17 - Brushless DC Motor - 15:1 Gearbox
$74.00 8 mm 16.3 kg·cm 260 RPM
DCM4103_0
NEMA17 - Brushless DC Motor - 24:1 Gearbox
$76.00 8 mm 24.5 kg·cm 166 RPM
DCM4104_0
NEMA17 - Brushless DC Motor - 56:1 Gearbox
$80.00 8 mm 61.2 kg·cm 70 RPM
DCM4106_0
NEMA23 - Brushless DC Motor - Gearless
$42.00 8 mm 2.9 kg·cm 4000 RPM
DCM4112_0
NEMA23 - Brushless DC Motor - Gearless
$65.00 8 mm 5 kg·cm 4000 RPM

DC Motors

DC motors are the simplest and most common option for rotary motion in many projects. This shaft coupler can connect to the main shaft of the following DC motors:

Product Physical Properties Motor Properties Electrical Properties Gearbox Specifications
Part Number Price Shaft Diameter Rated Torque Rated Voltage Gearbox Type Gear Ratio
3265_0
12V/0.5Kg-cm/670RPM 3.7:1 DC Gear Motor
$38.00 8 mm 540 g·cm 12 V DC Planetary 3 1217 : 1
3266_1
12V/1.9Kg-cm/175RPM 14:1 DC Gear Motor
$42.00 8 mm 1.9 kg·cm 12 V DC Planetary 13 212289 : 1
3267_0
12V/6.6Kg-cm/49RPM 51:1 DC Gear Motor
$33.00 8 mm 6.6 kg·cm 12 V DC Planetary 50 801895 : 1
3267_1
12V/6.6Kg-cm/49RPM 51:1 DC Gear Motor
$43.00 8 mm 6.6 kg·cm 12 V DC Planetary 50 801895 : 1
3268_1
12V/17.3Kg-cm/18RPM 139:1 DC Gear Motor
$43.00 8 mm 17.3 kg·cm 12 V DC Planetary * 139 1841221 : 1
DCM4000_0
24V/2.5Kg-cm/3280RPM DC Motor
$40.00 8 mm 4 kg·cm 24 V DC

Product Specifications

Physical Properties
Manufacturer Part Number CL1-19-8mm
Material Aluminium
Coupling Rated Torque 4.1 kg·cm
Coupling Rated Speed 10000 RPM
Torsional Stiffness 100 N·m/rad
Shaft Angularity Tolerance
Shaft Eccentricity Tolerance 120 μm
Inner Diameter 8 mm
Screw Thread Size M4
Weight 14 g
Customs Information
Canadian HS Export Code 8483.60.00
American HTS Import Code 8483.60.80.00
Country of Origin CN (China)

Documents

More 8mm shaft couplings:

Product Physical Properties
Part Number Price Inner Diameter Material Coupling Rated Torque Coupling Rated Speed Torsional Stiffness
TRM4313_0
Jaw Coupling Half 8mm Series 12
$3.00 8 mm Aluminum 35.7 kg·cm 12000 RPM
TRM4334_0
Spiral Beam Coupling 8mm - 8mm
$3.35 8 mm Aluminium 10 kg·cm 8000 RPM 110 N·m/rad