Products for USB Sensing and Control
Products for USB Sensing and Control


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

Jaw Coupling Half 19mm Series 38

ID: TRM4327_0
Recommended for new designs: Phidgets Inc. is not the original manufacturer for this product, but we intend to sell it (or a similar replacement with a compatible form, fit and function) for as long as it is available from the supplier.

This aluminium jaw coupling fits a 19mm shaft and connects to another half coupling with a spider.


Quantity Available: 44

Qty Price
5 $14.21
10 $13.62

This jaw type half-coupling can be used to connect a 19mm shaft to another shaft. It is held in place by two set screws, and fits together with another series 38 jaw coupling of any shaft size with a hard elastomer spider in between. See the Connection & Compatibility tab for a complete list of compatible couplings and spiders.

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 3300 kg·cm and speeds of up to 4000 rpm.


This jaw type half-coupling connects to any other series 36 half-coupling with a coupling spider pressed in between. The other half and the spider are both sold separately.


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
Image Part Number Price Material Shore Hardness
TRM4337_0 $5.20 Elastomer 95-98A

Jaw Couplings


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
Image Part Number Price Inner Diameter
TRM4326_0 $14.80 17 mm
TRM4327_0 $14.80 19 mm
TRM4328_0 $14.80 24 mm
TRM4329_0 $14.80 25 mm
TRM4331_0 $14.80 35 mm

Worm Gearboxes

This coupling can also fit onto the input shaft of the following worm gearboxes:

Product Gearbox Properties
Image Part Number Price Input Shaft Diameter Gear Ratio Maximum Strength of Gears
TRM4403_0 $111.00 19 mm 30:1 163 N·m

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
Image Part Number Price Diameter
TRM4006_0 $6.15 19 mm
TRM4007_0 $6.85 19 mm

Product Specifications

Physical Properties
Material Aluminum
Coupling Rated Torque 3.3 Mg·cm
Coupling Rated Speed 4000 RPM
Inner Diameter 19 mm
Customs Information
Canadian HS Export Code 8483.60.00
American HTS Import Code 8483.60.80.00
Country of Origin CN (China)