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Summary of Contents for SCHUNK ROTA NCO
- Page 1 Power Chuck ROTA NCO Assembly and operating manual...
- Page 2 Imprint Imprint Copyright: This manual is protected by copyright. The author is SCHUNK SE & Co. KG. All rights reserved. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: 0889055 Version: 03.00 | 22/04/2025 | en...
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Page 3: Table Of Contents
3.4 Grades of Accuracy ................26 3.5 Permissible imbalance DIN ISO 21940-11 ............ 26 4 Mounting ................... 27 4.1 Torques per screw ................27 4.2 Mounting in general ................27 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 4 6.3 Central oil lubrication ................36 6.4 Changing the top jaws ................. 36 7 Storage....................37 8 Disposal ..................... 38 9 Partlist ....................39 10 Assembly drawings ................41 11 Manufacturer certificate................. 43 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 5: General
CAUTION Denotes a hazard with a low degree of risk that, if not avoided, could result in a minor or moderate injury. NOTICE Information about avoiding material damage. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 6: Applicable Documents
Power Chuck incl. fastening screws base jaws with fine serration incl. T-nuts with screws base jaws with tenon and slot incl. jaw fixing screws Eye bolt (DIN 580) from size 260 and up 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 7: Basic Safety Notes
(EX area (ATEX directive)). 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 8: Structural Changes
In addition, Linomax plus grease, Branotect anti-rust oil and Renolit HLT2 are incorporated into the product as auxiliary and operating materials. The safety data sheet for LINOMAX plus can be found at www.schunk.com. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 9: Chuck Jaws
Specialist personnel have the specialized training, knowledge, and experience to perform the tasks entrusted to them, to recognize and avoid potential dangers, and know the relevant standards and regulations. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 10: Personal Protective Equipment
Do not expose the product to any corrosive media. Products for special ambient conditions are excluded. Rectify malfunctions as soon as they occur. Observe the care and maintenance instructions. 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 11 500 clamping strokes, at the latest. This moves the lubricant back to the surfaces of the force transmission. Check the clamping device regularly for clamping force and jaw stroke. 03.00 | ROTA NCO | Power Chuck | en | 0889055...
- Page 12 In the event of high operating speeds, clamping force losses must be accounted for 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 13: Disposal
To avoid accidents and/or material damage, human access to the movement range of the machine must be restricted. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 14: Notes On Particular Risks
Never exceed the technical data specified by the manufacturer for using the clamping device. 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 15 There is a risk of limbs being crushed by moving parts during manual loading and unloading and the clamping procedure. Do not reach between the chuck jaws. Use loading devices. 03.00 | ROTA NCO | Power Chuck | en | 0889055...
- Page 16 The outer diameter of the screwed-on top jaws must not exceed the outer diameter of the clamping device by more than 10%. 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 17: Technical Data
It is also assumed the chuck is in perfect condition and lubricated with SCHUNK LINOMAX plus special grease . If one or more of these prerequisites is altered, the diagrams will no longer be valid. 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 18 Max. actuating force Clamping force / speed diagram ROTA NCO 165 Speed of rotation [rpm] Colour Jaw ID Weight [kg] SWB-AL 160 SHB 200 SWB 160 Minimum required clamping force 33% 03.00 | ROTA NCO | Power Chuck | en | 0889055...
- Page 19 Minimum required clamping force 33% Clamping force / speed diagram ROTA NCO 260 Speed of rotation [rpm] Colour Jaw ID Weight [kg] SWB-AL 250 SHB 250 SWB 250 Minimum required clamping force 33% 03.00 | ROTA NCO | Power Chuck | en | 0889055...
- Page 20 Clamping force / speed diagram ROTA NCO 400 Speed of rotation [rpm] Colour Jaw ID Weight [kg] SHB 400 SWB-AL 400 SWB 400 18.3 Minimum required clamping force 33% 03.00 | ROTA NCO | Power Chuck | en | 0889055...
- Page 21 Clamping force / speed diagram ROTA NCO 630 Speed of rotation [rpm] Colour Jaw ID Weight [kg] SHB 400 SWB-AL 400 SWB 400 18.3 Minimum required clamping force 33% 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 22: Calculations For Clamping Force And Speed
RPM limit is exceeded, the clamping force drops below the required minimum clamping force F . Consequently, the spmin workpiece is released spontaneously. Do not exceed the calculated RPM. Do not fall below the necessary minimum clamping force. 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 23 NOTICE For safety reasons, in accordance with DIN EN 1550, the centrifugal force may be a maximum of 67% of the initial clamping force. 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 24: Calculation Example: Required Initial Clamping Force For A Given Speed
= 1.5 (according to VDI 3106) Safety factor S = 1.5 (according to VDI 3106) Note: Masses of the jaw mounting screws and T-nuts are not taken into account. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 25: Calculation Of The Permissible Speed In Case Of A Given Initial Clamping Force
The following formula can be used to calculate the permissible RPM for a given initial clamping force during shutdown: NOTICE For safety reasons, the calculated permissible RPM may not exceed the maximum RPM inscribed on the lathe chuck! 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 26: Grades Of Accuracy
Technical Supply Terms for lathe chucks as per DIN ISO 3442-3. 3.5 Permissible imbalance DIN ISO 21940-11 The ROTA NCO in ungreased state without T-nuts and top jaws corresponds to the balancing quality class 6.3 (according to DIN ISO 21940-11). Residual imbalance risks may arise due to insufficient rotation compensation being achieved (see DIN EN 1550 6.2 e). -
Page 27: Mounting
In order to achieve high run-out accuracy of the chuck, the machine side must be aligned before mounting the chuck. To do this, check the mounting surfaces for radial and axial run-out using a dial indicator. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 28: Chuck Assembly Options
Chuck assembly Direct assembly of the chuck to the machine spindle Assembly of the chuck with connecting flange – Direkt flange (insert ring) – Reduction flange – Expansion flange 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 29: Mounting Of The Power Chuck
Basically the chuck can be attached in two positions (horizontally or vertically), depending on the position of the machine spindle. Horizontal attachment of the chuck } 4.3.1 [/ 30] Vertical attachment of the chuck } 4.3.2 [/ 30] 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 30: Horizontal Attachment
Mount the top jaws firmly on the base jaws with the T-nuts and screws according to the markings 1, 2 and 3. Dismounting of the spindle is carried out in reverse order. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 31: Function
O-rings (items 86 and 88) can be removed from the insert. Turn chuck on its back. Remove screws (item 78) and take out mounting (item 7). O-ring (item 68) can be taken out. 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 32 Degrease and clean all parts and check them for damage or wear. Before installation, lubricate parts well with LINOMAX plus special grease. Only use original SCHUNK spare parts when exchanging damaged parts. 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 33: Assembly Of Various Energy Inserts
The chuck can be modified with various energy feed throughsat a later date. Please consider the detailed list of necessary components. (} 9 [/ 39]). Modification – Central lubrication Insert modification central lubrication Pull back screw Supply by customer Gauge cartridges 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 34 Function Modification – Air control Insert modification air control Pull back screw Supply by customer Modification – Coolant Insert modification coolant Pull back screw Supply by customer Nozzle insert 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 35: Maintenance
Check clamping force To be determined by the operator Complete cleaning / disassembly depending on soiling as required / after 1200 hours * Depending on which event occurs earlier. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 36: Central Oil Lubrication
Fill quantity of the gauge cartridges: Size Quantity [cm 6.4 Changing the top jaws When changing the top jaws, the serration has to be cleaned and greased with SCHUNK LINOMAX plus special grease. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 37: Storage
Only store the product in dry rooms. Protect the product from major temperature fluctuations. NOTE: Before recommissioning, clean the product and all attachments, check for damage, functionality and leaks. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 38: Disposal
Dispose of the chuck's metal parts as scrap metal. Alternatively, you can return the chuck to SCHUNK for proper disposal. 03.00 | ROTA NCO | Power Chuck | en | 0889055... -
Page 39: Partlist
165 / 210 / 260 / 315 / 400 O-ring Screw 10.9 165 / 210 / 260 / 315 Screw 10.9 400 / 500 / 630 Screw 10.9 210 / 260 / 315 Gauge cartridge 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 40 630 for size 630 260 for size 260 KV with tongue and groove 315 for size 315 SV with fine serration 400 for size 400 Accessories for media feed-through 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 41: Assembly Drawings
10 Assembly drawings ROTA NCO 165 – 400 At modification oil central lubrication Not used for NCO 165, Item 8 is screwed with Item 4 2 x for NCO 165 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 42 Assembly drawings ROTA NCO 500 – 630 03.00 | ROTA NCO | Power Chuck | en | 0889055...
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Page 43: Manufacturer Certificate
VDI 3106:2004-04 Determination of permissible RPM of lathe chucks (jaw chucks) Mengen, 02nd of August 2023 p.p. Philipp Schräder p.p. Alexander Koch Head of Development standard products Head of Engineering Design special products 03.00 | ROTA NCO | Power Chuck | en | 0889055... - Page 44 H.-D. SCHUNK GmbH & Co. Spanntechnik KG Lothringer Str. 23 D-88512 Mengen Tel. +49-7572-7614-0 info@de.schunk.com schunk.com Folgen Sie uns I Follow us Wir drucken nachhaltig I We print sustainable...
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