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

PHIDGETS Inc.

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

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12mm Precision Ground Rotary Shaft (w/ keyway)

ID: TRM4001_0
Recommended for new designs: This product is sourced from another supplier, but it (or a similar replacement with a compatible form, fit and function) is estimated to be available for as long as it is available from the supplier.
High carbon steel shaft with machined keyway for rotary power transmission.

$45.00 /Meter

Quantity Available: 106m

Length Price
5m $43.20
10m $41.40
Cut Fee
$1.00
Sold by the
Millimeter
Tolerance
2mm
Cut Range
50 - 2000mm
Number of Pieces
Piece Length in mm

This shaft is made of 1045 carbon steel and is 12mm in diameter. This is the same diameter as the gearbox output shaft on all our NEMA 23 steppers as well as larger DC motors. This shaft has a keyway machined in the full length of the shaft for higher torque applications.

Shaft Couplers

If you need to connect this shaft to a motor or another device with a shaft, you can use a shaft coupler:

Product Physical Properties
Image Part Number Price Inner Diameter Material Coupling Rated Torque Coupling Rated Speed Torsional Stiffness
TRM4317_0 $2.80 12 mm Aluminum 35.7 kg·cm 12000 RPM —
TRM4318_0 $6.85 12 mm Aluminum 611.8 kg·cm 4000 RPM —

Pulleys and Sprockets

If you're using a rotary system that requires a lot of torque, you may be interested in pulleys and sprockets. By using a two pulleys or sprockets of different sizes, you can increase the gear ratio of the system. Pulleys and sprockets can also be used to transmit rotation over a long distance. For more guidance on building a transmission system, visit our Rotary Motion Primer. Here is a list of our 12mm bore pulleys and sprockets:

Product Physical Properties
Image Part Number Price Inner Diameter Number of Teeth
TRM4107_0 $3.00 12 mm 36
TRM4108_0 $3.00 12 mm 44
TRM4109_0 $3.55 12 mm 60
TRM4110_0 $4.45 12 mm 80
TRM4120_0 $3.00 12 mm 16
TRM4121_0 $3.70 12 mm 24
TRM4122_0 $5.00 12 mm 34
TRM4123_0 $7.40 12 mm 50
TRM4124_0 $12.95 12 mm 72
TRM4139_0 $2.45 12 mm 10
TRM4140_0 $2.80 12 mm 18
TRM4141_0 $3.35 12 mm 32
TRM4142_0 $4.65 12 mm 52
TRM4144_0 $2.80 12 mm 9
TRM4145_0 $3.55 12 mm 14
TRM4146_0 $4.45 12 mm 20
TRM4159_0 $4.75 12 mm 30
TRM4161_0 $3.75 12 mm 13

Rotary Bearings

Systems with heavy loads or pulley/sprocket assemblies often put a lot of sideways strain on the shaft. In such a system, you can use rotary bearings to protect and support the shaft:

Product Physical Properties Mechanical Properties
Image Part Number Price Inner Diameter Bearing Type Static Load Dynamic Load
TRM4502_0 $4.00 12 mm Rotary Shaft (Flanged) 2.4 kN 5.1 kN
TRM4503_0 $4.00 12 mm Rotary Shaft (Pillow Block) 2.4 kN 5.1 kN

Product Specifications

Physical Properties
Diameter 12 mm
Keyway Width 4 mm

Here are all of our 12mm shafts:

Product Physical Properties
Image Part Number Price Diameter
TRM4001_0 $45.00/Meter 12 mm
TRM4016_0 $6.50/Meter 12 mm