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Ball Spline Unit With Integrated Rotary Bearing HRSU

What is HRSU ?

HRSU is the Ball Spline Unit Pre-assembled with

  • Stroke Ball Spline
  • Rotary Bearing
  • Timing Pulley

Features of HRSU

Compact Design

  • Outer Diameter of Rotary Bearing is ϕ11mm
  • Minimum pitch arrangement is12mm
  • Weight Saving

Possible actions of “Z-axis x ϴ-axis + Suction”

  • Z-axis(Linear Motion) x ϴ-axis (Rotation)
  • Hollow shaft allow Suction Equipment installed

Both end of the shaft (20mm each) is machinable

  • Machinable both ends allow the user to process at the user end.

HRSU saves time and effort
For
Procurement and Assembling of Parts

About shaft end machining
  • Both ends of the shaft are machinable, the user can do machining at the user ends.
  • Both ends of the shaft (from the shaft end to the laser marking, 20mm each) are machinable.
    (refer to the figure above: for dimensions, refer to the backside).
  • While machining the shaft, be careful not to damage or allow foreign matter to enter the spline unit.
  • It is also possible to draw the shaft out of the spline unit and then machine it.
    In this case, pay attention to the following points.
    • Pull the shaft out slowly in the stroke direction.
    • While machining it, be careful not to bend the shaft and not to damage the part of the shaft outside the machinable range.
  • Align the match mark (or set screw in the case of the M type) with the serial number as shown in the figure above, and insert the shaft slowly.

Once the shaft has been removed from the spline unit, or the end of the shaft has been machined, the shaft runout is no longer covered by the warranty.

Applications

  • Mounter, Handler etc.
  • Transfer Head for Pick and Place Unit

Model numbers notation

Dimensions

Pulley type Shaft
diameter
ΦDO		 Stroke
range		 L1 L2
0
-0.05		 L3 L4 D2 D3 D4 D5 T1 T2 T3 T4 Rotary Bearing Timing pulley specification
Outer
Diameter		 width Pulley
tooth profile		 Number of
pulley teeth		 Pitch
Diameter		 outer
diameter		 width
ΦD1
0
-0.01		 B PD OD W
Ｌ type 4 10 27.8 22.2 100 20 8.5 6 10.6 9.2 1 2.3 14.8 1 11 3 2GT 16 10.19 9.86 5.0
Ｒ type 7
Ｍ type 　 12.8
  • The asterisked runout values in the figure on the left, are guaranteed values at time of shipment.
  • Once the shaft has been removed from the spline unit,or the end of the shaft has been machined, this value is no longer covered by the warranty.
  • Preload: 0.5 to 2 μm
  • Material - Spline unit：SUJ2, aluminum
    shaft (raceways)　 ：SUJ2
  • Shaft hardness：HRC 58 or greater
    Machinable range：Approx. HRC 30 or less

Precautions for use

Precautions for Handling

  1. 1.Do not disassemble any part of this product. This will lead to contamination and reduced accuracy.
  2. Take care when tilting this product as the outer casing and shaft may fall due to their own weight.
  3. Do not drop or physically shock this product. Such action will cause the product to become damaged or fail.
  4. Store this product horizontally in an environment free from condensation. Avoid storing this product in humid environments with high or low temperatures.

Precautions for Lubrication

  1. 1.Lubricate this product before use with the lubricant prescribed by HEPHAIST. Always remove the anti-rust oil coating before applying lubricant.
  2. Contact your HEPHAIST representative if you wish to use a special type of lubricant.
  3. Contact your HEPHAIST representative regarding grease.

Precautions for Use

  1. Prevent contamination of the product because dust or other contaminants will cause reduced performance or damage or failure.If the product becomes contaminated, contact your HEPHAIST representative.
  2. Use this product in an environment free from condensation with low humidity and moderate temperatures
  3. Contact your HEPHAIST representative if you wish to use this product in a special environment (such as a cleanroom or within a vacuum, etc.).

Other Precautions

  1. Contact your HEPHAIST representative if you have any questions or require more information.
Technical Information
You can view 2D and 3D CAD data and operation simulations for various products.
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