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Renishaw: RESR angular encoder system RESR20USB075RESR20 is a one-piece stainless steel ring with 20 µm pitch graduations marked directly on the periphery. Two versions are available in a wide range of sizes (Ø52 mm to Ø550 mm).‘A' section rings, which offer an impressive installed accuracy, feature a taper mount system which reduce the need for highly toleranced machined parts and eliminate eccentricity. ‘B' section thin rings, which are low inertia and mass, are also available. Both 'A' and 'B' section rings have a large internal diameter for flexible integration. The non-contact format eliminates backlash, shaft wind-up (torsion) and other mechanical hysteresis errors that are inherent in traditional enclosed encoders.The RESR is a non-contact optical encoder that provides good immunity against contaminants such as dust, fingerprints and light oils. However, in harsh environments such as machine tool applications, protection should be provided to prevent ingress of coolant or oil.
RESR angle encoders
See SiGNUM sheet for RESM angle encoders
20 µm RESR RINGS
Compatible with RGH20 readheads
Series
Scale pitch
Material
Form
Diameter (mm)
Part number
Price US$
RESR
20U - 20 µm
S - stainless steel
A - standard section
052
RESR20USA052
434
057
RESR20USA057
474
075
RESR20USA075
541
100
RESR20USA100
644
101
RESR20USA101
103
RESR20USA103
663
104
RESR20USA104
675
115
RESR20USA115
741
150
RESR20USA150
858
200
RESR20USA200
1,075
206
RESR20USA206
1,199
209
RESR20USA209
1,216
229
RESR20USA229
1,297
255
RESR20USA255
1,894
300
RESR20USA300
2,153
350
RESR20USA350
2,583
413
RESR20USA413
3,014
417
RESR20USA417
3,444
550
RESR20USA550
10,332
B - low inertia
030
RESR20USB030
RESR20USB075
606
RESR20USB100
720
RESR20USB115
912
RESR20USB150
961
RESR20USB200
1,204
Renishaw RESR angle encoders