A trusted heavy duty partner

Thursday 1st December 2016
A trusted heavy duty partner

Abssac offers an Industrial ball screw range that effectively converts high torque rotary input into precise high load linear movement.

All industrial ball screws can be delivered cut to length and if required, machined ready to fit into the required support bearing mounts. Utilising the recirculating ball bearing nut technology as the base of the product, the Industrial class ball screws encompass screw diameters from 12mm up to 80mm as standard. In many cases multiple ball circuits, per ball nut, are employed to achieve greater load capacities making the product suitable for many types of application. As the name suggests, the range is aimed at the more industrial type application with dynamic load capacities from 900 to 13449 kgfbeing catered for. Whatever the load, it will be delivered with both high efficiency and low drive torque. Stocked screw lengths of up to 4500mm are available up to 32mm diameter and screw lengths up to 5600mm long for screws above 40mm in diameter.

Life Expectancy

Abssac is often asked about the life expectancy of the ball screw products it supplies within applications. Whilst this can sometimes be a difficult thing to accurately calculate, as parameters within an application can change during its life, it can nevertheless be achieved. During a recent design brief with one of our packaging machinery customers, a new range of machines were being designed with exceptionally long MTBS. (mean time between service). In fact, the machines unique selling point was to be its reliability and long service intervals. The ball screw to be used would also provide the primary linear movement required within the design, so was a critical part of the design guarantee.
 
Typically our transport  ball screws are rated for millions of mm’s of travel at the rated dynamic load. This is the load at which 90% of a group of identical ball screws will run without flaking for their lifetime. However, they will travel farther than this at lower limits. These load-life relationships are analogous to the B10 rating common in the ball bearing industry. The relationship of load to life is an inverse cube relation. For example, by reducing the customers load by half would increase the life by eight times. (Conversely doubling the load would decrease life by 1/8). Armed with this information Abssac’s customer then made every attempt to reduce the load within the design, which after a great deal of design change was finally achieved.  The end result was a ball screw assembly with the life expectancy required by the customer. For more performance data, aswell as further screw and nut dimensions please see our catalogue.
 

Performance & Dimensional data

Transport Ball Screw Diagram

Model

SizeBall Dia.CircuitsDynamic Load 1x106 revs C (kgf)Static Load Co (kgf)DD4Flange Hole No.D5D6H1L1L2L7L11M-Oil Hole
Nominal Dia.Lead
R12-5T3-FSI12523410710243264.540341044125M6x1P
R16-5T3-FSI163.17539001700283865.548401044105M6x1P
R20-5T4-FSI20413003100364766.658441052105M6x1P
R25-5T4-FSI25415004000405166.662481252105M6x1P
R25-10T3-FSI104.76331900420040516

6.6

62481665105M6x1P
R32-5T6-FSI3253.17562400790050656980621066126M6x1P
R32-10T4-FSI106.35043900910050656980621685126M6x1P
R40-5T6-FSI4053.175627001020063788993701066147M8x1P
R40-10T4-FSI106.350445001210063788993701687147M8x1P
R40-20T2-FSI206.35021870424463788993702088147M8x1P
R50-5T6-FSI5053.17562900130007593811110851070168M8x1P
R50-10T6-FSI106.350661651851175938111108516112168M8x1P
R63-10T6-FSI636.3506619221409901088111259516114189M8x1P
R63-20T5-FSI209.525511536351949010881112595161602010M8x1P
R80-10T6-FSI80106.35067093285081051258

13.5

145110201142010M8x1P
R80-20T5-FSI209.52551344947447125145813.5165130251752512M8x1P

 

  • Lead accuracy 0.05mm /300mm (T5,G7)
  • Axial Backlash 16mm-20mm shaft diameter : 0.06mm
  • Axial Backlash 25mm-50mm shaft diameter : 0.08mm
  • DIN nuts for rolled ballscrew spindles
  • Mating dimensions to DIN 6905 1 Part 5
  • Nuts with polymide wipers can be supplied
  • Flange end single nuts
  • Diameters up to 120mm can be supplied on request.
  • Nut fixing dimensions on request

End Journal machining

Let us eliminate your potential scrapping of a part when you machine the journel bearing ends yourself. At ABSSAC, we have a the cull capability to supply ball screw machined ready to fit into the application. Our machining capability gives you a high journal concentricity product and can be applied to all screws regardless of diameter.  Lets work together to reduce your scrap rates and supply ball solutions that fit your application every time. We can work directly from your dimensional drawings or if they do not exist, why not supply us with a physical sample for us to copy. Although all types of end machine detail can be supplied we offer a very cost effective basic end journal machining that fits our range of support bearings (see example diagrams below)

Industrial Ball Screws Diagram 2

To Suit Bearing TypeBallscrew SizeD1D2D3L1L2L3W1W2
BK/FK 10168.0M10X1.010.055.015.012.02.02.8
BK/FK 1216/2010.0M12X1.012.039.020.012.03.03.2
BK/FK 152012.0M15X1.015.067.025.012.04.03.5
BK/FK 1720/2515.0M17X1.017.077.023.014.05.04.5
BK/FK 202516.0M20X1.020.088.034.014.05.05.0
BK/FK 253220.0M25X1.525.0103.039.016.05.07.0
BK/FK 304025.0M30X1.530.0114.046.016.08.08.5
BK/FK 405032.0M40X1.540.0139.055.018.08.012.0

 

 


Linear guides and rails

Guides & Rails If you are interested in the using the transport ball screw ranges, do not forget that we also supply the full range of linear guides and rails which can provide the load support in your linear mechanism. Offering excellent rigidity and parallelism during operation the guides can be used in both vertical and horizontal planes.

Following the link to that product page Guides

Thrust and radial bearings

 

Please do not forget to ask for our competitive support bearing prices !

 If you require further technical information, please do not hesitate to contact our sales engineers who will be more than happy to help you with your selection.


Greases and Lubricants

We provide a full range of quality, low cost lubricants for all our linear products including low vapour pressure greases for clean room and vacuum applications. For example the new Trigel line is specifically formulated to offer a lubrication solution for a wide range of linear motion applications. Please ask for further details.  Grease features include, Temperature range -30°C to 150°C,  Revolutionary multi-complex soap technology, Greatly extended lubrication intervals typically 3 times longer than conventional soap thickened greases. Good corrosion resistance. Some greases are supplied blue in colour for high visibility.

 

Telephone ABSSAC : 01386 421005

 


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