MAXSpline Shafts - 47in

The MAXSpline Shaft -Polycarbonate (REV-21-6520)  brings the versatility of the MAXSpline profile to lightweight mechanisms where reducing mass is a priority. Designed for intakes, conveyors, and other low load assemblies, this shaft provides an easy way to build rotating structures without the weight of aluminum. It shares the same MAXSpline outer geometry as the aluminum version, allowing it to interface with wheels, sprockets, pulleys, and other MAXSpline bore components across the REV ION System.

Although the shaft is not intended for high torque or heavy structural loads, it excels in applications where quick response, low inertia, and ease of fabrication matter most. The shaft can be cut with a bandsaw, hacksaw, or similar tools using the same workflow teams already use for aluminum MAXSpline Shaft, making it simple to customize lengths during prototyping or iteration. The inner profile maintains compatibility with bearings and bushings like the 1/2in Rounded Hex Bearing (REV-21-3197-PK4), allowing smooth rotation when used with a 1/2in rounded hex deadaxle.

This new polycarbonate option gives teams a lightweight, cost effective way to expand their MAXSpline based designs while preserving the familiar geometry and integration flexibility of the ION System.

The MAXSpline Shaft - (REV-21-2520) is compatible with the REV ION System. The shaft is an extruded aluminum MAXSpline that provides a high strength alternative to 1/2in hex shaft that can interface with any REV ION System components with a MAXSpline bore. The inner diameter is 1in and can fit a Needle Bearing for dead axle applications.

Features

• Lightweight polycarbonate construction ideal for intakes and low load mechanisms
• Maintains a MAXSpline Bore outer profile for compatibility with MAXSpline ION System components.
• Not intended for high torque or heavy structural applications
• Can be cut to length using a bandsaw, hacksaw, or similar tools
• Reduced rotating mass improves responsiveness in intake and conveyor designs
• Inner profile supports 1in OD bearings and bushings

Specifications

MAXSpline Shaft - Polycarbonate - 47in

• Material: Polycarbonate
• Finish: Black
• Outside Profile: MAXSpline Bore
• Inner Diameter: 25.4mm (1in)
• Length: 1193.8mm (47in)
• Weight: 247g (0.545lb)

MAXSpline Shaft - 47in

• Weight: 571g (1.26lbs)
• Material: Aluminum 6061

Documentation

• MAXSpline Shaft Overview 
• ION Build System Guide
• Introduction to Motion
• MAXSpline Shaft User Guide
• Application Example - Dead Axle

CAD & Drawings

• REV-21-6520 STEP File
• REV-21-6520 ONSHAPE
• REV-21-6520 Drawing
• REV-21-2520 STEP File
• REV-21-2520 Onshape
  • Onshape Application Examples - Low, Medium, & High Complexity
  • Onshape Application Example - Linear Actuator Arm
  • Onshape Application Example - MAXSpline Adapter
• REV-21-2520 Drawing