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Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Jaw Coupling Half 8mm Series 12

ID: TRM4313_0

This aluminium jaw coupling fits a 8mm shaft and connects to another half coupling with a spider.

$3.00

Quantity Available: 835

Qty Price
5 $2.88
10 $2.76

This jaw type half-coupling can be used to connect a 8mm shaft to another shaft. It is held in place by two set screws, and fits together with another series 12 jaw coupling of any shaft size with a hard elastomer spider in between.

Jaw type couplings are ideal for high-torque applications and applications where shafts of two different sizes need to be coupled. This series of couplers are rated for torques as high as 35 kg·cm and speeds of up to 12000 rpm.

Features

  • Use this to attach a 8mm shaft to another piece of shaft
  • Connects to another Series 12 coupling and spider
  • Tightens on with two 2mm set-screws

Assembly

This jaw type half-coupling connects to any other series 12 half-coupling with a coupling spider pressed in between. The other half and the spider are both sold separately.

FUNCTIONAL

Jaw Coupling Spider

You'll need a coupling spider to connect this jaw coupling to another. You can find a list of compatible spiders below:

Product Physical Properties
Part Number Price Material Shore Hardness
TRM4335_0
Jaw Coupling Spider Series 12
$1.30 Elastomer 95-98A

Jaw Couplings

FUNCTIONAL

Jaw couplings are designed to connect to other jaws in the same series, which gives you the option of coupling two differently sized shafts together. Between the two jaw couplings, a coupling spider is used to hold them in place while still allowing for a small amount of flex. The jaw couplings in the list below will fit together with this coupling:

Product Physical Properties
Part Number Price Inner Diameter
TRM4310_0
Jaw Coupling Half 4mm Series 12
$3.00 4 mm
TRM4311_0
Jaw Coupling Half 5mm Series 12
$3.50 5 mm
TRM4312_0
Jaw Coupling Half 0.25" Series 12
$2.80 14
TRM4313_0
Jaw Coupling Half 8mm Series 12
$3.00 8 mm
TRM4314_0
Jaw Coupling Half 9mm Series 12
$1.40 9 mm
TRM4315_0
Jaw Coupling Half 10mm Series 12 - 3mm Keyway
$3.60 10 mm
TRM4315_1
Jaw Coupling Half 10mm Series 12 - 4mm Keyway
$3.60 10 mm
TRM4316_0
Jaw Coupling Half 11mm Series 12
$1.40 11 mm
TRM4317_0
Jaw Coupling Half 12mm Series 12
$3.60 12 mm
TRM4338_0
Jaw Coupling Half 6mm Series 12
$2.80 6 mm

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
Material Aluminum
Coupling Rated Torque 35.7 kg·cm
Coupling Rated Speed 12000 RPM
Inner Diameter 8 mm
Hex Key Size Required 2 mm
Customs Information
Canadian HS Export Code 8483.60.00
American HTS Import Code 8483.60.80.00
Country of Origin CN (China)

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