Rehberg Ball Transfer Units

consist of a big ball, which is supported by several small balls. The small supporting balls run in a hemispheric shell made of hardened steel embedded in a housing.

This construction effects a smooth running of the balls and allows effortless tranportation or moving of even heavy loads in any direction, with rolling friction and at a speed of up to approximaitely 2 m/sec.

Our manufacturing program includes Ball Transfer Units with big balls having diameters ranging from  8 bis  90 mm of sheet steel, massive steel or stainless steel with load capacities up to 4.000 kg/unit.unit, at a temperature of 20°C. Several attachment possibilities allow universal applications.

When used for heavy loads, as for instance pallets, containers, etc., high shock loads, due to the merchandise to be moved, wil occour. When used outdoors, ambient influences like dust, rain, snow, ice, and extreme temperatures between –50°C and +80°C occur. For these conditions we have developed Ball Transfer Units with special coating and corrosion-resistant components.

Areas of application

Stationary and mobile transport and conveyors,

such as sorting and distribution centres, crossing in conveyors, turning and ball tables, lifting platforms etc.

For lateral shock load resulting from the goods to be conveyed or environmental impact in outdoor use, Ball Transfer Units with a massive housing, special sealing, and corrosion-resistant materials have been developed. With no deterioration in terms of quality, these units withstand temperature fluctuations of –50 °C to +80 °C.

Sheet metal-working machines

e.g. push-in devices for presses and shears,

light and exact positioning of sheet metal. Heavy loads can be pushed or turned into any direction.

Sheet metal forming machines

e.g. units for folding machines

effortless insertion and positioning Ball Transfer Units with spring housing dive into the case, and they thereby give you a solid and stable position after the workpiece has been secured.

Special mechanical engineering

e.g. For processing centres of large workpieces

Transport and mounting support of heavy tools or large engines and motors. Ball transfer units allow for precise rolling with full load-carrying capacity wherever these units have been fitted.

Examples for application

The use of ball transfer units is versatile, and they can be used in a very wide range of areas. These units have proven themselves as components in conveyor systems, hoisting-, sorting- and distributing plants.

General mechanical engineering

Feeding tables for metal sheet processing machines
Equipment for folding machines
Feeding units for processing centres
Drilling tables and motorised supporting tables

Materials handling

Ball tables, rotary tables, and points in sorting and distribution facilities
Luggage-sorting systems at airports
Lifting platforms
Transport of steel tubes

Other areas

Special mechanical engineering, aerospace industry
Nuclear reactors
Stone-processing industry

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OUR PRODUCTS

Ball Transfer Units Massive Steel

Special Executions

Ball Transfer Units Spring-Housing

Ball Transfer Units Sheet Steel

Dimensioning

Number and Arrangement of Ball Transfer Units

The number of Ball Transfer Units depends on the weight as well as size and condition of the basal surface of the load.

Load capacity

Revelant is the heaviest load with the smallest basal surface.

Considering probable tolerances in height as well on the ball mat as on the Ball Transfaer Units, it has to be assumed that only 3 Ball Transfer Units are led to carry the load, applying to sturdy basal surface.

This implies that the load divided by 3 = necessary load capacity per Ball Transfer Unit. An adequate secrutiy load should be added. When using springloaded Ball Transfer Units or in case basal surface is flexible, it should be assumed that more Ball Transfer Units are carrying the load. In that case, the load divided by the number of carrying Ball Transfer Units = necessary load capacity per Ball Transfer Unit.

Distance between Ball Transfer Units

To be sure that the basal surface of the load lies always on the Ball Transfer Units and does not slip down between the ball transfer units, the distance between the Ball Transfer Units is: smallest edge of the load divided by 2.5.

Mounting, removal, maintenance, and lubricating instructions for Ball Transfer Units

Mounting

Mounting is done from the operating side. The Ball Transfer Units should easily slip into the receiving bores. This can be done by hand. Never use force. The might result in rendering Ball Transfer Units inoperative.

Removal

Removal is also done from the operative side, with the help of two claws (claw wrenches). When removing Ball Transfer Units with collar, the claws should be put directly under the collar.

Maintenance, Lubricant

The Ball Transfer Units are supplied with initial lubrication and can re-lubricated befor mounted. Re-lubricating can be done via the big ball. A lubricant preventing corrosion and agglutination of sediments should be chosen. Any conglutination of dirt might jeopardize the free movement of the Ball Transfer Units. We recommend a mult-purpose hydraulic oil