33 875 83 86 bhkarcz@bhkarcz.pl

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BC: CONCENTRICITY TEST BENCH
Composed by a pair of cross-points (CP) and a black granite base of a reduced width, lapped at grade 1 and a central T-slot mm 16H8; 3 adjustable feet. ( U Max = Usefull distance between point)

U Max. H L W T KG.
BC 140 mm 300 150 700 250 100 76
BC 141 mm 600 150 1000 300 140 149
BC 142 mm 1100 150 1500 350 180 307
BC 143 mm 1600 200 2000 400 220 556
BC 144 mm 2100 200 2500 500 250 928

CP: CROSS POINTS
MEEHANITE WA structure standardised anti-wear. Steel tube in cemented Ni-Cr. Points with attachment C M 2. Parallelism between the axis point and the base 0,01 mm.
Point alignment ± 0,01 mm. Overall dimension: 350 mm. Key 16 mm.

Art. Code D e s c r i p t i o n KG
CP 385 CROSS POINTS HIGH H 150 23
CP 386 CROSS POINTS HIGH H 200 28
CP 387 CROSS POINTS HIGH H 250 42

CI: BLACK GRANITE CYLINDERS
The black granite cylinders are manufactured with two support surfaces which are perpendicular to the cylindrical surface. Suitable for squareness test, cylinders have
reduced tolerances both on generatrix straightness as well as on cylindrically

Art. Code o H Squareness µm Cilindricity µm KG
CI 390 70 200 2 2 2
CI 391 80 300 3 3 4
CI 392 100 400 4 4 8
CI 393 120 500 5 5 12

CU: CUBES IN BLACK GRANITE
Manufactured with either two, four or six lapped, plane and parallel surfaces. See table for dimens ion s and tolerances . With threaded holes on all faces on request.

SIZE µm µm 2 Faces 4 Faces 6 Faces KG
CU Side 50 mm 1,5 2 0225 0226 0227 0,4
CU Side 100 mm 2 2 0228 0229 0230 3
CU Side 150 mm 2.4 3 0231 0232 0233 10
CU Side 200 mm 2.8 3 0234 0235 0236 24

PR: PAIR OF V-PRISMS 90° IN BLACK GRANITE
Ideal for testing cylinders. The tolerances in the table (in thousandths of a millimetres) refer to the flatness of the base and the parallelism between the base and the axis of the V-shaped groove. On request, other faces can be lapped.

SIZE mm µm µm KG O Max
PR 0240 100 X 70 X 50 2 4 1 mm 100
PR 0241 140 X 100 X 60 2 4 2 mm 140
PR 0242 200 X 140 X 70 3 6 6 mm 200

PL: PARALLELEPIPED IN BLACK GRANITE
Its square form ensures greater stability with respect to the set squares while the use of the third side
allows a surer testing of the angle error. Three faces lapped perpendicular each other and the upper base. Three adjustable feet are fitted to the lateral face
It is provided with a hole for lightening in the middle. It is suitable for the squaring tests upon measuring instruments and machine tools.

S I Z E mm µm µm KG
PL 0243 500 x 250 x 50 3 2 14
PL 0244 750 x 350 x 60 4 3 36
PL 0245 250 X 250 X 40 2 1.5 7
PL 0246 350 X 350 X 50 2 1.5 18
PL 0247 500 X 500 X 50 3 2 30
PL 0248 750 X 750 X 60 4 3 70
PL 0249 1000 X 1000 X 80 4 4 150
PL 0250 1000 X 500 X 80 4 4 70

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