Rockwell Automation RDD-B4102 Rotary Direct Drive Bearingless Motors - Manual (Page 12)

12 RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
Publication RDB-IN002B-EN-P — February 2010
RDB-B2901, RDB-B2902, RDB-B2903 Machine Mounting Dimensions
RDB-B4101, RDB-B4102, RDB-B4103 Machine Mounting Dimensions
Attribute Value
Pilot diameter 232.92…232.96 mm (9.170…9.172 in.)
Shaft diameter, small 59.988…59.999 mm (2.3617…2.3622 in.)
Shaft diameter, large 69.988…69.999 mm (2.7554…2.7559 in.)
Shaft length, small
RDB-B2901
RDB-B2902
RDB-B2903
43.81…44.07 mm (1.725…1.735 in.)
88.01…88.27 mm (3.465…3.475 in.)
124.58…124.84 mm (4.905…4.915 in.)
Shaft length, overall
RDB-B2901
RDB-B2902
RDB-B2903
89.42…91.42 mm (3.480…3.600 in.)
132.61…135.61 mm (5.220…5.340 in.)
169.19…172.19 mm (6.660…6.780 in.)
Shaft runout 0.038 mm (0.0015 in.) max
Pilot concentricity 0.05 mm (0.002 in.) max
Mounting surface perpendicularity 0.05 mm (0.002 in.) max
Attribute Value
Pilot diameter 333.94…333.98 mm (13.147…13.149 in.)
Shaft diameter, small 69.988…69.999 mm (2.7554…2.7559 in.)
Shaft diameter, large 79.988…79.999 mm (3.1491…3.1496 in.)
Shaft length, small
RDB-B4101
RDB-B4102
RDB-B4103
40.26…40.52 mm (1.585…1.595 in.)
83.69…83.95 mm (3.295…3.305 in.)
118.49…118.75 mm (4.665…4.675 in.)
Shaft length, overall
RDB-B4101
RDB-B4102
RDB-B4103
112.55…115.55 mm (4.430…4.550 in.)
166.39…169.39 mm (6.550…6.670 in.)
251.99…254.99 mm (9.920…10.040 in.)
Shaft runout 0.038 mm (0.0015 in.) max
Pilot concentricity 0.05 mm (0.002 in.) max
Mounting surface perpendicularity 0.05 mm (0.002 in.) max