Ball Transfer Technical Information

Starting friction of Ball Transfers

The data below was obtained by testing the mechanical resistance of four IS-51 ball-up castor type catalog model ball transfers conveying 1000 kg load. To compare and consider various articles, we measured on raw SS steels (mill scale and polished), and hardened (SK steel, hardness HRC60, polished).

As shown in the chart below, the harder the runway surface is the smoother the article conveyed. For not-hardened steel, or black scale applications please contact our sales.

Material SS Steel SK Steel HRC60˚ Polished
Black Scale Polished
Resistance 0.03~0.05 0.02~0.035 0.01~0.015

Determining the load for a Ball Transfer unit

ISB ball transfers come into two categories, pressed and molded type for light load, and precision-machined type for heavy loads. When considering ball transfers for an application, the border line for light/heavy loads are approx. 500 kg. Equal load distribution over many ball transfers is seldom, if ever achieved. Load distribution is governed by the flatness, hardness and smoothness of the load surface in contact with the balls and the ball transfer installation height variance and system deflection. Absolute flatness of the application design is difficult to insure under field service conditions.

To determine the load rating required per units simply divide the ball transfer load capacity by 2 for pressed and molded products and 2/3 for machine-cut products.


Ball transfer variation

Material

On heavy load ball transfer, large and small balls are made of bearing steel, bowl is made of chrome steel. Stainless steel for rust, lightweight aluminum and various kinds of engineering plastics are available.

Sizes

Miniature size ball diameter 5mm (IS-05N, IS-05SN) and over 150 mm diameter large ball (IS-150) is also available. By combining different material and sizes, we select a ball transfer based on load size, material, speed, environment, and other conditions. In addition, we can customize and create special products for your application. For more information, please contact our sales.


Ball transfer applications

Applications
  • Factory manufacturing lines
  • Port facilities
  • Multi layer parking lots
  • Nuclear facilities
  • Nuclear reprocessing facilities
  • Garbage disposal facilities
  • Under office floors and buildings
  • Semiconductor FPD
  • Medical Labs

ISB ball transfers are used in a wide range of applications to provide basic support to today's society.


Ball Transfer surface finishing

Type Surface Finishing (1) Surface Finishing (2) Surface Finishing (3)
IS-10 Cap Nickel Plating
IS-13 Cap Nickel Plating
IS-19 Cap Nickel Plating
IS-25 Cap Nickel Plating Screw Trivalent Chromate
IS-38 Cap Nickel Plating Screw Trivalent Chromate
IS-51 Cap Nickel Plating Screw Trivalent Chromate
IS-76 Cap Nickel Plating Screw Trivalent Chromate
IS-100 Cap Nickel Plating Screw Trivalent Chromate
IS-127 Cap Nickel Plating Screw Trivalent Chromate
IS-150 Cap , Grease Nipple Nickel Plating Washer Trivalent Chromate Screw Blackening
IS-05N Cap Nickel Plating
IS-06N Cap Nickel Plating
IS-08N Cap Nickel Plating
IS-10N Cap Nickel Plating Set Screw Blackening
IS-13N Cap Nickel Plating Set Screw Blackening
IS-16N Cap Nickel Plating
IS-19N Cap Nickel Plating Set Screw Blackening
IS-25N Cap Nickel Plating Set Screw Blackening
IS-38N Cap Nickel Plating Set Screw Blackening
IS-10B Cap , Body Nickel Plating
IS-13B Cap , Body Nickel Plating
IS-19B Cap , Body Nickel Plating
IS-25B Cap , Body Nickel Plating
IS-38B Cap , Body Nickel Plating
IS-10BF Cap , Body , Flange Nickel Plating
IS-13BF Cap , Body , Flange Nickel Plating
IS-19BF Cap , Body , Flange Nickel Plating
IS-25BF Cap , Body , Flange Nickel Plating
IS-38BF Cap , Body , Flange Nickel Plating
IS-14BM Cap , Bolt Nickel Plating Screw Trivalent Chromate
IS-19BM Cap , Bolt Nickel Plating Screw Trivalent Chromate
IS-19BK-05 Cap Nickel Plating Nut Trivalent Chromate
IS-25BK-08 Cap Nickel Plating Nut Trivalent Chromate
IS-25BK-20 Cap Nickel Plating Nut Trivalent Chromate Spring Painting
S-05 Cap Nickel Plating
S-06 Cap Nickel Plating
S-08 Cap Nickel Plating
S-10 Cap Nickel Plating
S-13 Cap Nickel Plating
S-22 Cap Nickel Plating Screw Trivalent Chromate
S-25 Cap Nickel Plating Screw Trivalent Chromate
S-38 Cap Nickel Plating Screw Trivalent Chromate
S-51 Cap Nickel Plating Screw Trivalent Chromate
S-76 Cap Nickel Plating Screw Trivalent Chromate
IA-19 Snap Ring Nickel Plating Body Alumite
IA-25 Snap Ring Nickel Plating Body Alumite
IA-38 Snap Ring Nickel Plating Body Alumite
IA-19R Snap Ring Nickel Plating Body Alumite
IA-25R Snap Ring Nickel Plating Body Alumite
IA-38R Snap Ring Nickel Plating Body Alumite
IM-16 Cap , Plate Trivalent Chromate
IM-25 Cap , Plate Trivalent Chromate
IM-25N Cap , Plate Trivalent Chromate
US-16 Cap , Plate Trivalent Chromate
US-25 Cap , Plate Trivalent Chromate
US-25N Cap , Plate Trivalent Chromate
IB-19 Cap , Plate Nickel Plating
IB-25 Cap , Plate Nickel Plating
IBU-900-75 (US-25) Base Painting Screw Trivalent Chromate
IBU-900-100 (US-25) Base Painting Screw Trivalent Chromate
IBT-600-75 (IM-25) Base Painting Screw Trivalent Chromate
IBT-600-100 (IM-25) Base Painting Screw Trivalent Chromate
UF-88 Cap , Body Nickel Plating Nut Trivalent Chromate
UF-110 Cap , Body , Snap Ring Nickel Plating Unit Alumite Screw Trivalent Chromate
IJH-19 Snap Ring Nickel Plating
IJH-25 Snap Ring Nickel Plating
IJH-38 Snap Ring Nickel Plating
IJP-19 Snap Ring Nickel Plating
IJP-25 Snap Ring Nickel Plating
IJP-38 Snap Ring Nickel Plating
IK-19 Body , Cap , Snap Ring Nickel Plating
IK-22 Body , Cap , Snap Ring Nickel Plating
IK-25 Body , Cap , Snap Ring Nickel Plating
IK-38 Body , Cap , Snap Ring Nickel Plating
IK-51 Body , Cap , Snap Ring Nickel Plating
IK-76 Body , Cap , Snap Ring Nickel Plating
IK-100 Body , Cap , Snap Ring Nickel Plating
IK-127 Body , Cap , Snap Ring Nickel Plating
IK-19N Body , Cap , Snap Ring Nickel Plating
IK-22N Body , Cap , Snap Ring Nickel Plating
IK-25N Body , Cap , Snap Ring Nickel Plating
IK-38N Body , Cap , Snap Ring Nickel Plating
IK-51N Body , Cap , Snap Ring Nickel Plating
IK-13NM Cap Nickel Plating
IK-16NM Cap Nickel Plating
IK-19NM Body , Cap Nickel Plating
IK-22NM Body , Cap Nickel Plating
IK-25NM Body , Cap Nickel Plating
IRT-300 Table , Base , Snap Ring , Shaft Nickel Plating Screw Trivalent Chromate
IRT-400 Table , Base , Snap Ring , Shaft Nickel Plating Screw Trivalent Chromate
IRT-500 Table , Base , Snap Ring , Shaft Nickel Plating Screw Trivalent Chromate
IR-100 Case , Roller , Shaft , Snap Ring Nickel Plating
IR-125 Case , Roller , Shaft , Snap Ring Nickel Plating
IR-150 Case , Roller , Shaft , Snap Ring Nickel Plating