Guide bushes
We have seven types of Guide bushes: steel sliding guide
bronze plated, ball guide aluminium, brass and plastic, roller
guide, sliding guide with solid lubricant and sliding guide with
solid lubricant bands.
Exchange bushes
Due to the standarised outside diameter, all guide
bushings are interchangeable. A die set with a sliding guide
can be changed to using a ball or roller guide without any
additional work, simply by exchanging the guide bushings. For each
bore, you can use:
Two different inside diameters, for example 30/32, Seven different
types of guidance, for example: Three sliding and four ball guide
types. Three different bushing types, for example: Shoulder,
flange or smooth bushings. Three different bushing
lengths (for inside diameters from 19 to 80)
Therefore, it is possible to use 128 different guide bushings for
each bore.
Steel sliding guide bronze plated
The hardened steel sleve absorbs strong lateral forces and
prevents the guide bushing from deforming when its being
compressed strongly across its edges. The galvanized bronze plating
is very hard, wear-resistant and honed to highest surface finish
quality. In addition to its excellent long running wear factor it
also has very good heat dissipation characteristics that ensure the
rapid dispersement of excessive frictional heat.
All Steinel precision sliding guides "steel bronze plated are
suplied with an internal lubrication system, where the parallel
lubrication rills across the grooves are connected with axial
channels. As a result, an equal distance to all lubrication points
is ensured. At the same time, the internal lubrication system
guarantees a shielding effect against dirt. |
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The recommended Sliding speed is 15 - 30 m/min. Under
ideal conditions of lubrication, guide clearance, stroke length,
radial load and heat dissipation, very high stroke speeds of 600 -
800 strokes/min can be achieved.
Sliding guide with solid lubricant
Our guide bushings without lubrication and without
maintainance are complex sliding units, highly resistant to
wear and very precise. When sliding the solid lubricant produces a
continuous film, strongly attached to the guide units. This film
remains on the sliding surface even when stopping or
starting. |
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Sliding guide with solid lubricant bands
As our previous product without lubrication and therefore
without maintainance these guide bushings are complex
sliding units, highly resistant to wear and very precise. When
sliding the solid lubricant bands produce a continuous film,
strongly attached to the guide units. This bushes stroke
velocity is of 30 m/min. |
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Ball Guides
Steinel ball guides due to a microfinished contact
surface and uniformly selected precision steel balls have an
extreme precision. ball guides have a long life span due to
the free wheeling mounting and helical positioning of the balls, so
that each ball has its own track. The exact size of the balls and
the fact that they are previously fixed we obtain full contact in
the guide giving an optimum precision. Although fixing balls with
too much pressure would overload the guide. Thats why fixing has to
be carried out to 4 to 14 µm depending on the guides
diameter. Strokes allowed on these guides 30-40 m/min or
even higher. |
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Other features of ball cages include a device to asure the
guide is fixed to the pillar, stroke control devices, and
the low maintainance required, only an adequate lubrication.
There are various ball cages to fulfill our customers needs:
Aluminium
ball cages: Ball cage made of aluminium balls of steel,
hardened, grade 1, sorted. Their weight is below many others.
The guide is fixed to remain in position, weight reduction and
same stability, translates to smaller mass forces, therefore
these have longer life spans. They can withstand temperatures
of 80ºC. They can have a security ring according to Din
471.
Brass ball
cage: Ball cage made of brass, balls of steel, hardened, grade
1, sorted. They have a high mechanical strength, best antifriction
properties as well as high abrasive resistance and stability. Due
to their optimum heat resistance they are suited for temperatures
over 80ºC. They have a better grip due to the highest ammount
of balls.
Plastic ball
cage: Made of Hostaform C plastic, balls of steel, hardened,
grade 1, sorted. Heat resistant up to 90ºC. They have a
smaller mass. This makes them perfect when high velocities
are required. They are also good to work in aggressive
environments.
Roller cage
Roller cages can be used in all kinds of longitudinal
movement but they cant rotate over themselves. Specially useful
when the guide is transversal.
A
roller can stand loads 8 times higher than a ball with its
same size. The rollers positioning prevents critical deformations,
which improves their performance.
Stroke velocity can get up to 40 m/min and even
higher.
The roller cage is made of aluminium, profile rollers of steel
,hardened, grade 1, sorted. The profile rollers in the cage
holes are free-wheeling wedged. Thus a protection against torsion
is guaranteed. The rollers are helically arranged in the axial
direction, so that each roller has its own race.
Must be previously fixed to 2-4 µm.
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