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Spindle

Product catalog summary

Introduction
The catalogue from Jena-Tec Inc. provides detailed information on various spindle solutions, including high frequency, motorised, and belt-driven spindles, designed for applications such as boring, turning, grinding, milling, and drilling. Customised spindles are available for special applications.

High Frequency Spindles
Overview: These spindles operate based on the speed-frequency relationship of AC induction motors, featuring high precision bearings and options for hybrid bearings. They are lubricated with grease or oil/air and cooled via a water jacket.
Milling/Drilling/Routing: Compact and high-torque, these spindles are water-cooled and support various tool holder sizes, with a service module including an inverter drive and cooling system.
Woodworking: Specifications for speed, motor dimensions, and lubrication systems are provided for woodworking applications.

Motorised Spindles
Overview: Featuring a synchronous speed motor directly on the spindle shaft, these spindles are compact and used in grinding applications.
Surface Grinding: Available with dual or constant output, designed for specific grinding wheel sizes, and feature sealed-for-life lubrication.
Special Purpose Grinding: Designed for specific rotation and speed requirements, with features like air purge and sealed lubrication.

Belt Driven Spindles
Overview: Used for internal and external grinding, with standard ranges for different sleeve types.

Spindle Services
Replacement and Repair: Details on spindle replacement and repair services, including required specifications.
Related Products: Quills and other related products are available.

Technical Diagrams and Tables
Includes diagrams and tables illustrating lubrication systems, cooling systems, and spindle arrangements, providing technical specifications and dimensions.

Specifications and Procedures
Details on motorized spindles for heavy-duty milling and boring machines, including power outputs and rotational directions. Installation and operational procedures are outlined, emphasizing the use of A.C. speed inverters and correct spindle selection.

Standards and Accuracy
Jena-Tec spindles are manufactured to high precision standards, with specific tolerances for flange and location bore runout.

Recommendations
Users should select spindles with a maximum speed higher than the recommended grinding speed and ensure compatibility with machine models. Sealed-for-life lubrication is suggested to minimize maintenance.

Applications
Suitable for various applications, including internal grinding on vertical boring mills and planetary adjustments on horizontal boring machines, with detailed dimensions and configurations provided.

Additional Features
Custom spindle solutions and multi-spindle cluster units are available for specialized applications, along with wheel adaptors and balancing facilities.

Spindle Types

Solid Quill Type: Maximum rigidity for specific bore sizes and face grinding.
Sleeve Type: Suitable for large diameter and long bores, with bearings positioned behind the wheel.
External Type: Used for outside diameter and surface grinding, with adaptors for large wheels.

Ordering Instructions
Specify maximum speed, spindle type, serial number, diameter, and length when ordering. Indicate quill rotation direction.

Spindle Repair Services
Jena-Tec offers repair and upgrade services, ensuring high-quality solutions with dynamic balancing and cleanroom assembly.

Information Required for Spindle Enquiries
Provide spindle type, application, housing type, space limitations, operating position, and rotation direction. Include motor specifications for motorized spindles and belt drive details for belt-driven spindles. Supply drawings if possible.

Catalog excerpts

Jena-Tec Inc. 333A Bell Park Drive Woodstock GA USA 30188 Telephone: 1 (770) 926 6705 Fax 1 (770) 926 6724 Toll Free: 1-888-453-6283 E.mail: [email protected] Jena Rotary Technology Limited Willow Drive Sherwood Park Annesley Nottinghamshire NG15 0DP England Tel: ++44(0)1623 726010 Fax: ++44(0)1623 726018 E.mail: [email protected]

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Jena-Tec Spindles - page 2 SPINDLES INDEX HIGH FREQUENCY SPINDLES HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING page 5 STANDARD HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING page 6 HIGH FREQUENCY SPINDLES - WOODWORKING page 7 MOTORISED SPINDLES STANDARD RANGE - SURFACE / FORM / BROACH GRINDING AND SURFACE GRINDING page 14-17 SPECIAL PURPOSE GRINDING page 18 VERTICAL ROTARY GRINDING page 19 HEAVY DUTY MILLING page 20-21 VERTICAL BORING MACHINES page 22-23 MOTORISED PLANETARY SPINDLES - HORIZONTAL BORING MACHINES page 24 SPINDLES - BORING BORING SPINDLES page 26-27 BELT DRIVEN...

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Jena-Tec Spindles - page Manufactured to the highest engineering standards within the new Jena rotary technology centre B&T Spindles are suited to a wide range of applications, including machines for BORING, TURNING, GRINDING, MILLING and DRILLING etc. This PDF catalogue provides details on the broad range of B&T spindle solutions - customised spindles can be produced for most special purpose applications and machines not listed. ® Incorporating: BONEHAM PRECISION SPINDLES BONEHAM & TURNER SPINDLES

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Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - OVERVIEW VOLTAGE AND SPEED High Frequency Spindles use the rule that the speed of an AC Induction motor is proportional to the frequency of the electric supply. So, on a 2-pole motor, a 50Hz supply will give a synchronous speed of 3000 rpm and increasing the supply frequency to 100Hz will give a synchronous speed of 6000 rpm. The variation in frequency is most commonly obtained from a Static Frequency Inverter which also allows control of the voltage of the supply to the motor. The voltage/frequency ratio together with the design of the motor...

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Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING All spindles are specifically constructed to match requirements and many options and accessories are available. They are generally fitted with permanent magnet (cold rotor) water cooled brushless spindle servomotors giving compact design with very high torque and wide speed range for rated power output as well as positioning capability for tool changing. Manual, or in most cases, power drawbars are available to suit SK30, SK40, or SK50 size tool holders. For higher speed HSK tapers to DIN69893 in sizes 32, 40, 50...

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Jena-Tec Spindles - page STANDARD HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING AUTO TOOL CHANGE Typical Power Characteristics Example HF833 S1

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Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - WOODWORKING Spindle type (r/min) KW

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Jena-Tec Spindles - page OIL/AIR LUBRICATION Electrically controlled Oil-air pump set. Application: Min. oil lubrication. Continuous bearing lubrication for high-speed spindles. Compact construction. Continuous oil flow. Technical data: Air pressure (inlet): 2.5 - 6.0 (bars) Tank volume: 1.5(l) Temperature range: 0-50°C

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Jena-Tec Spindles - page 9 Jena Rotary Technology supply refrigerated process coolers for dispersal of heat from the motor & bearings. These coolers use FCKW free refrigerant. Coolant temperature is maintained at 20721 °C. These units are acceptable in environments where temperatures vary from +107+40°C.

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Jena-Tec Spindles - page SPINDLE SERVICE MODULE Included:- Inverter, Chiller, Air supply for Spindle nose sealing. . Extra (to be specified):- Oil/Air Lubrication. Power Unit for Autochange Drawbar. EMERGENCY STOP Basic Sizes Chiller litre/min

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Jena-Tec Spindles - page HIGH FREQUENCY SPINDLE / SPINDLE SERVICES - MILLING Typical arrangement Electric Motor Invertor Power Supply e Thermister Trip Circuit Thermistor in Motor Winding Air Purge (Optional) Air Supply Lubricator Oil/Air Cooling Water

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Jena-Tec Spindles - page MOTORISED SPINDLES - OVERVIEW This type of spindle has a synchronous speed motor built direct onto the spindle shaft thus forming a complete self contained unit which is carefully balanced to remove all traces of vibration. All driving complications are eliminated and the unit can be made very compact. The spindles are fitted with super precision pre-loaded angular contact ball bearings. This type of spindle is put into many uses including, surface, slideway, cutter, broach and form grinding etc. Spindles can be supplied to run horizontally, vertically or at any angle...

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Jena-Tec Spindles - page MOTORISED SPINDLES STANDARD RANGE - Surface Grinding, Form Grinding, Broach Grinding and other Applications L2 INCH RANGE Reference Power Output Power Output METRIC RANGE

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Jena-Tec Spindles - page MOTORISED SPINDLES For Surface Grinding This motorised spindle incorporates a two speed motor, or alternatively single speed motors as shown below. Voltages can be supplied to order. Spindles have “Sealed” for life lubrication. Grinding Wheel adaptors to suit cup wheels 6"-8" diameter for 3,000 r.p.m. spindles, 12"-14" diameter for 1,500 r.p.m. spindles and 16"-18" for 1,000 r.p.m. spindles. Rear end of spindle shaft is threaded to suit Rotary Coolant Union. Standard rotation anti-clockwise viewing on grinding wheel end. 2-1/2" DIA HOLES FOR GUARD MOUNTING Dual Output...

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Jena-Tec Spindles - page MOTORISED SPINDLES For Surface Grinding These spindles have circular Vee base, which allows for the clamping of the unit by means of a split ring. Mounting bases will be supplied to order. Voltages supplied to order. Spindles have “Sealed” for life lubrication. Grinding Wheel adaptors to suit cup wheels 6"-8" diameter for 3,000 r.p.m. spindles and 12"-14" diameter for 1,500 r.p.m. spindles will be supplied to order. Rear end of spindle shaft is threaded to suit Rotary Coolant Union. Standard rotation anti-clockwise viewing on grinding wheel end. Dual Output Constant Output...

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Spindle

Spindle

Catalog excerpts

All Kuroda Jena Tec Holdings Ltd catalogs and technical brochures