Stark Industries - Manufacturer from Nehru Nagar West, India

Profile

Mounting Arrangements

Motors are suitable for mounting in horizontal & vertical position.
Horizontal mounting position B₃, B₅, B₆, B₇, B₈, B₁₄, B₃₅ & B₃₄
Vertical mounting position - V₁, V₃, V₅, V₆, V₁ & V₁₉

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Type of Enclosure

All motors are with totally enclosed fan cooled (TEFC) type enclosure. However totally naturally cooled & Air over motors can be supplied on request. Motors suitable to IP 44, IP 54 & IP 55 protection can be supplied.

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Salient Features

Castings for body frame end shields, bearing shields etc., are made out of quality graded grey iron casting which assures fairly long years of utility
Pressure die-cast aluminium body for frame 63 to 180 L also available
Terminal box 63-90 frame terminal box position on top side. For other frames terminal box position will be right hand side, When viewed and from the drive end and Terminal box on left hand side can be given on request.Terminal box can be rotated in a step of 90° through 360° for desired direction of cable entries. All terminal boxes are designed for maximum space for ease of connection
All motors are supplied with ‘B’ class insulation.Insulation class ‘F’ and ‘H’ can be given on request
All standard motors are capable for service factor 1.1 at rated voltage and frequency / or continuous duty
Rotors are of squirrel cage, aluminium diecast and are dynamically balanced with a half key to keep the vibration levels very low
Core materials are with low loss high grade silicon steel
Windings are wound with Polyester enameled ‘F’ class wire & impregnated with thermo setting by varnishing oven
All motors are suitable to 415V+/-10%,50Hz +/-5% & combined +/- 10% variations unless otherwise specified
All motors can withstand momentary overload of 1.6 times of rated torque, for 15 seconds without stalling
Motors are designed for continuous duty at an ambient temp 40° C
Thermistors (PTC) can be provided on request to avoid single phasing and over heating due to excess load on the motor
Cable gland suitable ¾” to 1” with B.S conduit threadings.Other type of entries can be given on request
All standard motors are having deep groove ball bearings.Deep groove ball bearings are capable of taking axial loads in both be direction in addition to the radial loads at high speeds
Bearings are double shielded and are adequately filled with lithium based high temp. (up to 120° C) grease.Therefore no relubrication required. Life of the bearing is normally 15000 to 25000 working hours depending upon operating conditions
Oil seals are provided to ensure IP 55 protection
Noise level of the motors are maintained as per specification IS : 12065
Motors are tested for vibration level of normal class as per IS : 12075

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Technical Support

Voltage variation	:415 ± 10%
Frequency variation	:50 Hz ± 5%
Combined variation	:Frame Dimension as per IS 1231
Class of insulation	:'F'
Ambient Temperature	:45° / 75° C
Altitude	:Not exceeding 1000 Mts, Above the sea level
Rating / duty	:Continues / S1
Degree of protection	:IP55 (as per IS 4691)
Position of terminal box:	Right hand side viewing from drive End for F 80 to 200 L and on top for F 71 to F 132
Connection:	Up to 100 Frames star. 112 frame and above DELTA
No. of leads:	STAR - 3. DELTA - 6
Grease:	The bearings are lubricated with lithium based grease type. Molysulf NMG - 47 grease. This type of grease operating temperature range from - 34° C to 250° C.
Vibration level:	Normal class as per IS 12075
Noise level:	As per IS 12065
Overload capacity:	Capable of withstanding 60% overload for 15 seconds
Over Speed:	120% over speed for 2 minutes
Paint:	POLYURETHENE (Shade ridge blue)