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| | | Rack Driven Carriages | | |
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| | | Driven carriages are available to suit 5 sizes of double edge spacer slide (with fitted racks) in all grades of precision. They have all of the benefits of the standard type carriage along with many additional features including micro-adjustment facility for achieving the correct engagement of the pinion with the rack. Rack driven carriages include the worm gearbox, drive flange and shaft pinion of suitable ratio. The gearbox may be supplied coupled with an integral AC motor which is the most economical means of producing point-to-point linear motion, and which may be controlled for speed and acceleration via the AC speed controller, which is available from Bishop-Wisecarver. The gearbox can also be supplied with an adaptor flange and input shaft coupling tailored to suit other makes or types of motors including steppers and servos which benefit from the low backlash of the gearbox. Tailored carriages are available on short delivery for customers wishing to use their own motor, gearbox and pinion. | | |
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| | | Use with Slides | | |
| | | Part Number | | |
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| | | AU RD 44 34... AU RD 60 34... AU RD 76 34... AU RD 76 54... AU RD 120 54... | | NM 44...R 44 NM 60...R 60 NM 76...R 76 NL 76...R 76 | | 133 38.2 72.3 144 29.7 88.3 154 21.7 104.3 193 41.2 119.1 | | 74.8 28.8 90.8 20.3 106.8 12.3 123 27.2 167 24.5 | | 22 22 22 33 33 | | 97.8 105.3 113.3 141.2 182.5 | | 56 56 56 80 80 | | 74.1 74.1 74.1 100.6 | | 43 43 43 57 | | 18 22.5 70 18 22.5 70 18 22.5 70 20 36.5 98 20 36.5 98 | | |
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| | | NL 120...R 120 240 38.5 163.1 | | | 119.8 111.3 | | |
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| | | Please see other table for dimensions C, D, E & L | | |
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| | | L | | |
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| | | M - Tapped holes for customer use (optional)*5 | | |
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| | | Blanking plugs for cap seal & lubricator holes supplied as necessary | | |
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| | | S | | |
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| | | * Notes: 1. The maximum load capacities quoted on the standard and removable carriage pages, assume lubrication at the interface of bearings and slide. This can best be achieved by using cap seals or lubricators. It is strongly recommended that load and life are determined using methods shown in the calculations section. 2. Some dimensions will vary by the amount of the grinding allowance according to the grade of slide selected. All carriages are compatible with all grades of slide. 3. CH (Controlled Height) bearings are selected to be within ±0.005 mm in respect of 'B1' dimension on pages 28-29 compared to standard bearings which are within ±0.025 mm. Customers requiring CH bearings with the same tolerance band in respect of a number of carriages should state this on their order. 4. The carriage bearing and cap seal fixing centers F1 are optimized for use with any precision grade of slide. Customers making their own carriage plate should calculate their drilling centers for the particular grade of slide selected. Please see assembled systems or individual component page for details of calculations. 5. Any number and size of tapped mounting holes 'M' can be provided in any available position. These may be specified in the ordering details after the designation M by stating the co-ordinates X & Y relative to the datum point, followed by the tapped hole size. Example: M - X10Y25M6 - x=10 mm, y=25 mm, hole size = M6. Care should be taken to avoid any hole position that bridges the contact area between cap seal and carriage plate as this will allow grease to escape. 6. The removable option is not available in conjunction with cap seals or controlled height bearings. 7. The quoted rack drive force is determined by the rack and pinion size, gearbox bearings and gears, and the duty. 44 | | |
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| | | © Bishop-Wisecarver Corporation 2007. All rights reserved www.bwc.com 888.580.8272 | | |
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