Accuracy Six-row linear recirculating ball bearing and guideway assemblies KUSE..-L

The tolerances are arithmetic mean values. They relate to the centre point of the screw mounting or locating surfaces ╳
The effective surface is the surface which separates the object from its surrounding medium.The actual surface is the approximate image from measuring technology of the ideal geometric surface. Note: various measuring processes or measuring conditions (e.g. stylus radius) can give different actual surfaces.The geometric surface is an ideal surface whose nominal form is defined by a drawing or other technical documentation. See DIN 4760 for further details.

See
Surface protection
Surface tension of the carriage.

The dimensions H and A₁ (table) should always remain within the tolerance irrespective of the position of the carriage on the guideway.

Table 1
Tolerances of accuracy ╳
Deviation of the actual dimension from the nominal dimension as described by tolerances. For monorail systems, the parallel deviation of the reference surfaces within given tolerances.

See
Running accuracy
Dimensional accuracy classes

Tolerance		Accuracy
		G1	G2	G3¹⁾	G4
		μm	μm	μm	μm
Tolerance for height	H	±10	±20	±25	±80
Height difference²⁾	ΔH	5	10	15	20
Tolerance for spacing	A₁	±10	±15	±20	±80
Spacing difference²⁾	ΔA₁	7	15	22	30

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Tolerance		Accuracy
		G1	G2	G3¹⁾	G4
		μm	μm	μm	μm
Tolerance for height	H	±10	±20	±25	±80
Height difference²⁾	ΔH	5	10	15	20
Tolerance for spacing	A₁	±10	±15	±20	±80
Spacing difference²⁾	ΔA₁	7	15	22	30

		______
¹		Standard accuracy ╳ Deviation of the actual dimension from the nominal dimension as described by tolerances. For monorail systems, the parallel deviation of the reference surfaces within given tolerances. See Running accuracy Dimensional accuracy class.

Difference between several carriages on one guideway, measured at the same point on the guideway.

Units with Corrotect^® coating

For these units, the values for the appropriate accuracy ╳
Deviation of the actual dimension from the nominal dimension as described by tolerances. For monorail systems, the parallel deviation of the reference surfaces within given tolerances.

See
Running accuracy
Dimensional accuracy class must be increased by the values for RRF or RRFT; for values, see table.

Table 2
Tolerances for coated parts

Tolerance		With Corrotect^® coating		With Protect A coating	With Protect B coating
		RRF¹⁾	RRFT²⁾	KD	KDC
		μm	μm	μm	μm
Tolerance for height	H	+6	+3	+6	+6
Height difference³⁾	ΔH	+3	0	+3	+3
Tolerance for spacing	A₁	+3	+3	+3	+3
Spacing difference³⁾	ΔA₁	+3	0	+3	+3

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Tolerance		With Corrotect^® coating		With Protect A coating	With Protect B coating
		RRF¹⁾	RRFT²⁾	KD	KDC
		μm	μm	μm	μm
Tolerance for height	H	+6	+3	+6	+6
Height difference³⁾	ΔH	+3	0	+3	+3
Tolerance for spacing	A₁	+3	+3	+3	+3
Spacing difference³⁾	ΔA₁	+3	0	+3	+3

		______
¹		Displacement in tolerance zone (guideway and carriage coated).

Displacement in tolerance zone (guideway only coated).

Difference between several carriages on one guideway, measured at the same point on the guideway.

Figure 2
Datum dimensions for accuracy

Positional
and length tolerances
of guideways

The positional and length tolerances ╳
See
Running accuracy
Dimensional accuracy are shown in Figure 3 and the table.

The hole pattern corresponds to DIN ISO 1101.

Figure 3
Positional and length tolerances
of guideways

Table 3
Length tolerances ╳
See
Running accuracy
Dimensional accuracy of guideways

Tolerances
of guideways, as a function of length l_max¹⁾			on multi-piece guideways
Guideway length mm			mm
≦1000	＞1000 ＜3000	＞3000	mm
–1	–1,5	±0,1% of guideway length	±3 over total length

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Tolerances
of guideways, as a function of length l_max¹⁾			on multi-piece guideways
Guideway length mm			mm
≦1000	＞1000 ＜3000	＞3000	mm
–1	–1,5	±0,1% of guideway length	±3 over total length

		______
¹		Length l_max: see dimension tables.

Table 4
Pieces of joined guideways

Guideway length¹⁾	Maximum permissible number of pieces
mm	Maximum permissible number of pieces
＜3 000	2
3 000 – 4 000	3
4 000 – 6 000	4
＞6 000	4 + 1 piece per 1 500 mm

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Guideway length¹⁾	Maximum permissible number of pieces
mm	Maximum permissible number of pieces
＜3 000	2
3 000 – 4 000	3
4 000 – 6 000	4
＞6 000	4 + 1 piece per 1 500 mm

		______
¹		Minimum length of one piece = 600 mm.