End Type End Type |
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Straight | Made to Order |
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Threaded | With Retaining Ring Grooves |
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Keyed | Tapped |
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Step Down | D-Profile |
System of Measurement System of Measurement |
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Length Length |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Material Material |
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Mechanical Finish Mechanical Finish |
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For Motion Type For Motion Type |
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![]() | Rotary |
Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Yield Strength Yield Strength |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Thread Length Thread Length |
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Heat Treatment Heat Treatment |
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Step Length Step Length |
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Overall Diameter Overall Diameter |
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Thread Pitch Thread Pitch |
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Keyway Length Keyway Length |
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Keyway Width Keyway Width |
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(ORDERING) Keyway Length (Range) (ORDERING) KeywayLength (Range) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Shafts
More
Flange-Mount Idler Rotary Shafts



Mount the flange to a machine or wall to support idler sprockets and pulleys in tensioning applications. They include washers and a nut to position your component and hold it in place.
For technical drawings and 3-D models, click on a part number.
Overall | Thread | Mounting Holes | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Lg. | Dia. | Size | Pitch | Lg. | Flange Thick. | Bolt Circle Dia. | No. of | Dia. | Edge Type | Hardness Rating | Hardness | Yield Strength, psi | Each | |
Metric—Zinc-Plated 1215 Carbon Steel | ||||||||||||||||
20mm | 15mm | 46mm | 50mm | M18 | 2.5mm | 16.56mm | 11mm | 36mm | 4 | 6mm | Straight | Medium | Rockwell B84 | 60,200 | 0000000 | 000000 |
Keyed Rotary Shafts
Combine these shafts with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components. All have an ANSI standard keyway (keys not included; see our selection of key stock). Their edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine.
Stainless steel shafts are more corrosion resistant than steel shafts but also more difficult to machine. 303 and 304 stainless steel shafts have good corrosion resistance. 303 stainless steel shafts are annealed, which makes them softer than 304 stainless steel shafts but more corrosion resistant.
For technical drawings and 3-D models, click on a part number.



Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
Keyed End | Threaded End | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Keyway Lg. | Keyway Wd. | Keyway Dp. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | ||||||||||
25mm | 75mm-1,000mm | 10mm-150mm | 8mm | 4mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | |
Metric—4140 Alloy Steel (Brinell 270) | ||||||||||
25mm | 75mm-1,000mm | 10mm-150mm | 8mm | 4mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 | |
Metric—303 Stainless Steel (Brinell 140) | ||||||||||
25mm | 75mm-1,000mm | 10mm-150mm | 8mm | 4mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 |



Internal threads allow you to attach threaded components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.
Threaded Rotary Shafts
Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine. They are annealed (softened) for increased corrosion resistance.
For technical drawings and 3-D models, click on a part number.


To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
Threaded End | |||||||
---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 |


To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For each end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
First Threaded End | For Second Threaded End | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for First Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Choose a Thread Size for Second Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | ||
Metric—303 Stainless Steel (Brinell 140) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 | ||
Metric—4140 Alloy Steel (Brinell 270) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 |



Combine with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments).
Threaded End | Keyed End | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Choose a Keyway Lg. | Keyway Wd. | Keyway Dp. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-150mm | 8mm | 4mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-150mm | 8mm | 4mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | ||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-150mm | 8mm | 4mm | Hardened | 00000000 | 000000 |



A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments).
Threaded End | D-Profile End | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Flat Wd. | Choose a D-Profile Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 12.5mm | 10mm-150mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 12.5mm | 10mm-150mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 12.5mm | 10mm-150mm | Hardened | 00000000 | 000000 |

with Retaining
Ring Grooves


Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments).
Threaded End | End with Retaining Ring Grooves | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Choose an End-to-Groove Lg. | Choose a Groove-to-Groove Lg. | Groove Wd. | Groove Dia. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | Hardened | 00000000 | 000000 |



A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments).
Threaded End | Step-Down End | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Choose a Step Lg. | Choose a Step Dia. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-500mm | 0.79mm-25mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-500mm | 0.79mm-25mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||
25mm | 75mm-1,000mm | 10mm-100mm | 10mm-500mm | 10mm-500mm | 0.79mm-25mm | Hardened | 00000000 | 000000 |



Internal threads allow you to attach threaded components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.
Tapped Rotary Shafts
Connect these internally threaded shafts directly to threaded components, or use a fastener to secure. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine. They are annealed (softened) for increased corrosion resistance.
For technical drawings and 3-D models, click on a part number.


To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.


To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For each end of the shaft, please specify thread size.



Combine with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the keyed end of the shaft, please specify keyway length (in 0.005" or 0.1 mm increments).



A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments).

with Retaining
Ring Grooves


Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments).



A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments).



Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size. For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
Rotary Shafts with Retaining Ring Grooves
Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine.
Annealed shafts have been softened for increased corrosion resistance.
For technical drawings and 3-D models, click on a part number.

Ring Grooves ×
Threaded End


Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
End with Retaining Ring Grooves | Threaded End | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose an End-to-Groove Lg. | Choose a Groove-to-Groove Lg. | Groove Wd. | Groove Dia. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||||
25mm | 75mm-1,000mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||||
25mm | 75mm-1,000mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||||
25mm | 75mm-1,000mm | 6mm-500mm | 0.1mm-500mm | 1.3mm | 23.9mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 |

Ring Grooves ×
Tapped End


Internal threads allow you to attach threaded components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the end with retaining ring grooves, please specify end-to-groove length and groove-to-groove length (in 0.001" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.
D-Profile Rotary Shafts
A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine.
Annealed shafts are softened for increased corrosion resistance.
For technical drawings and 3-D models, click on a part number.



Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
D-Profile End | Threaded End | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Flat Wd. | Choose a D-Profile Lg. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||
25mm | 75mm-1,000mm | 12.5mm | 10mm-150mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||
25mm | 75mm-1,000mm | 12.5mm | 10mm-150mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||
25mm | 75mm-1,000mm | 12.5mm | 10mm-150mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 |



Internal threads allow you to attach threaded components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the D-profile end of the shaft, please specify D-profile length (in 0.005" or 0.1 mm increments). For the tapped end of the shaft, please specify thread size.
Step-Down Rotary Shafts
A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 4140 alloy steel shafts have a higher yield strength than 1045 carbon steel shafts for supporting heavier loads; however, they are more difficult to machine. They are hardened for increased wear resistance. 303 stainless steel are more corrosion resistant than steel shafts but also more difficult to machine.
Annealed shafts have been softened for increased corrosion resistance.
For technical drawings and 3-D models, click on a part number.



Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments). For the threaded end of the shaft, please specify thread size, thread length (in 0.005" or 01. mm increments), and step length (in 0.005" or 0.1 mm increments).
Step-Down End | Threaded End | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Choose a Lg. | Choose a Step Lg. | Choose a Step Dia. | Choose a Thread Size for Threaded End | Choose a Thread Lg. | Choose a Step Lg. | Heat Treatment | Each | |
Metric—1045 Carbon Steel (Brinell 180) | |||||||||
25mm | 75mm-1,000mm | 10mm-500mm | 0.79mm-25mm | 10mm-100mm | 10mm-500mm | __ | 00000000 | 0000000 | |
Metric—303 Stainless Steel (Brinell 140) | |||||||||
25mm | 75mm-1,000mm | 10mm-500mm | 0.79mm-25mm | 10mm-100mm | 10mm-500mm | Annealed | 00000000 | 000000 | |
Metric—4140 Alloy Steel (Brinell 270) | |||||||||
25mm | 75mm-1,000mm | 10mm-500mm | 0.79mm-25mm | 10mm-100mm | 10mm-500mm | Hardened | 00000000 | 000000 |



Internal threads allow you to attach threaded components.
To Order: Please specify the length of the shaft (in 0.005" or 0.1 mm increments). For the step-down end of the shaft, please specify step length (in 0.005" or 0.1 mm increments) and step diameter (in 0.001" or 0.01 mm increments). For the tapped end of the shaft, please specify thread size.