SKF TIH 100m User manual

Instructions for use
Mode d’emploi
Bedienungsanleitung
Instrucciones de uso
Manuale d’instruzioni
Bruksanvisning
Gebruiksaanwijzing
Instrucções de utilização
Brugervejledning
Käyttöohje
Οδηγίες χρήσης
SKF TIH 220m

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3SKFTIH220m
EU Declaration of conformity ....................................................................................4
Safety recommendations ..........................................................................................5
1. Introduction .........................................................................................................6
1.1 Intended use ......................................................................................................................... 6
1.2 Principle of operation .......................................................................................................... 6
1.3 Distinguishing features ........................................................................................................ 7
2. Description ..........................................................................................................7
2.1 Components .......................................................................................................................... 7
2.2 Technical Data ....................................................................................................................... 8
3. Installation of the mains plug ...............................................................................8
4. Preparation for use ..............................................................................................9
5. Operation .............................................................................................................9
5.1 Function of displays ............................................................................................................. 9
5.2 Function of buttons ............................................................................................................10
5.3 Temp Mode ..........................................................................................................................10
5.4 Time Mode ..........................................................................................................................11
5.5 Temperature measurement ..............................................................................................11
5.6 Change of temperature unit .............................................................................................11
5.7 Demagnetisation ................................................................................................................11
5.8 Power level selection .........................................................................................................11
6. Safety features ...................................................................................................12
7. Troubleshooting .................................................................................................12
8. Spare parts ........................................................................................................13
Table of contents
English

4 SKFTIH220m
EU Declaration of conformity
We, SKF Maintenance Products, Kelvinbaan 16,
3439 MT Nieuwegein, declare that the
SKF Induction heater
TIH 220m
is designed and manufactured in accordance with the
EUROPEAN LOW VOLTAGE DIRECTIVE 73/23/EEC
EMC DIRECTIVE 89/336/EEC,
outlined in harmonised Norms
VDE 0721-1
EN 60519-1
EN 61000-6-2
EN 61000-6-4
The Netherlands, December 2006
Sébastien David
Manager Product Development and Quality

5SKFTIH220m
Safety recommendations
• Because the TIH 220m generates a magnetic eld, people wearing a
pacemaker must not be within 5 m (16 ft) of the TIH 220m during
operation. Electronic equipment, such as wristwatches, may also be
affected.
• During the heating process observe a safety distance of 50 cm (1.6 ft)
with the workpiece, the heater coil or the core.
• Follow the operating instructions at all times.
• Make sure the voltage supply is correct.
• Electrical arcing may occur when a potential difference exists between
the TIH 220m and the workpiece. This is not dangerous to human beings
and will not cause damage to the TIH 220m or the workpiece. However,
the TIH 220m must never be used in areas where there is a risk of
explosion.
• The TIH 220m must not be exposed to condensing humidity or direct
contact with water.
• Never touch the TIH 220m coil, core, yoke or workpiece during heating.
• Never operate the TIH 220m without a yoke in position.
• Never operate the TIH 220m with the cable of the remote control
between the vertical supports of the yoke.
• Do not modify the TIH 220m.
• Use proper handling equipment when lifting heavy workpieces.
• Avoid contact with hot workpieces, especially bearing cages, which are
hotter than the rings. Wear the supplied heat resistant gloves to handle
hot workpieces.
• When using induction heating, the temperature generated in the bearing
inner ring will be higher than the temperature in the bearing
outer ring. Ensure that the different expansion of the rings does not
block the rolling elements.
• Ensure the yoke is applied with the ground faces pointing downward, and
in proper contact with the core uprights.
English

6 SKFTIH220m
1. Introduction
The SKF TIH 220m induction heater is designed to heat bearings, which are mounted with
an interference t onto a shaft. The heat causes the bearing to expand, which eliminates
the need to use force during installation. A 90 °C (162 °F) temperature difference
between the bearing and shaft is generally sufcient to enable installation. At an ambient
temperature of 20 °C (68 °F), the bearing must therefore be heated to 110 °C (230 °F).
1.1 Intended use
The TIH 220m has been designed to heat rolling bearings. However, other metal
workpieces that form a closed circuit can also be heated. Examples of acceptable
workpieces include bushings, shrink rings, pulleys, and gears. All bearings that t over the
induction coil and between the vertical supports with the top yoke in place can be heated
using the TIH 220m. In addition, smaller bearings can be placed over any of the two
standard yokes. See the illustrations at the beginning of this manual for examples.
1.2 Principle of operation
The principle of operation of the TIH 220m can be compared to a transformer. The
high voltage, low electrical current owing through a large number of windings in the
TIH 220m’s induction coil induces low voltage, high current electricity in the workpiece.
Because the workpiece has the electrical characteristics of a coil with a single, short-
circuited winding, the high current generates heat within the workpiece. Because the heat
is generated within the workpiece, all of the heater components remain cool.

7SKFTIH220m
1.3 Distinguishing features
• Remote control panel
To improve the ease of use and to help reduce the risk of contact with the hot bearing
during operation, the TIH 220m heater is supplied with a remote control panel which
can be detached from the heater.
• Inductive coil
When heated the workpiece is located at the same position on the core as the inductive
coil. This design improves efciency, resulting in less power consumption and faster
heating which reduces the cost to heat each bearing.
• Folding bearing supports
To support large bearings positioned around the induction coil, the TIH 220m induction
heater is tted with folding bearing supports. See the illustrations at the beginning of
this manual.
• Sliding yoke
To facilitate the handling of the yoke while placing the bearing around the induction coil
or around the top yoke, the TIH 220m is tted with a sliding arrangement for the large
yoke.
• Yoke storage
The small yoke can be stored inside the heater. The yoke storage is located behind the
folding bearing supports. See the illustrations at the beginning of this manual.
2. Description
The operation of the heater is controlled by the internal electronics in either of two
modes. The operator can either select the desired temperature of the bearing in TEMP
MODE or set the length of time that the bearing will be heated in TIME MODE. The power
level can be adjusted to 100% or 50% for slower heating of sensitive workpieces (for
example, bearings with C1 or C2 clearance).
2.1 Components
The TIH 220m induction heater contains a U-shaped iron core with an induction coil
surrounding one of the vertical supports. A detachable remote control panel is included.
The remote control electronics and the internal electronics, control the operation of the
heater. A removable yoke on the top of the vertical supports, allows the workpiece to
be placed onto the heater. The largest of the two yokes can slide on its vertical post. To
accommodate smaller workpieces, a small yoke is also provided.
A temperature probe is included with the heater. Heat-resistant gloves are also included.
English

8 SKFTIH220m
2.2 Technical Data
TIH 220m/xx
Voltage (±10%): TIH 220m/MV: 400-460V / 50-60Hz
TIH 220m/LV: 200-240V / 50-60Hz
Recommended line protection:
TIH 220m/MV minimum requirement 25 A
TIH 220m/LV minimum requirement 50 A
Power consumption (maximum) 10,0-11,5 kVA for 400-460 V
Temperature control 0-250 °C (32-482 °F); in steps of 1°
Probe type thermocouple, K type
Probe maximum temperature 250 °C (482 °F)
Time mode 0-60 minutes; in steps of 0.1 minute
Power range 100%- 50%
Demagnetisation automatic; residual magnetism <2A/cm
Overall dimensions (w x d x h) 750 x 290 x 440 mm
(29,5 x 11,4 x 17,3 in)
Area between supports(width x height) 250 x 255 mm (9,8 x 10,0 in)
Coil diameter 140 mm (5,5 in)
For minimum bearing bore diameter of
150 mm (5,9 in)
Weight (with yokes) 86 kg (189 lbs)
Workpiece maximum weight Bearing: 300 kg (661 lbs)
Solid component: 150 kg (330 lbs)
Maximum heating temperature approx. 400 °C (752 °F)
m20* 220 kg (bearing 23172)
Standard yoke dimensions: For minimum bearing bore diameter of:
70 x 70 x 430 mm (2,8 x 2,8 x 16,9 in) 100 mm (3,9 in)
40 x 40 x 430 mm (1,5 x 1,5 x 16,9 in) 60 mm (2,3 in)
* m20 represents the weight (kg) of the heaviest SRB 231 bearing that can be heated from
20 to 110 °C (68 to 230 °F) in 20 minutes.
3. Installation of the mains plug
A qualied electrician must install a suitable mains plug. The correct supply voltage is
shown in section 2.2.
The wires should be connected as follows:
TIH 220m/MV, TIH 220m/LV with 200V-3 phases, and all other three phases supply
execution
Colour of TIH 220m/xx wire Mains supply terminal
yellow / green ground
blue phase 1
brown phase 2
Connect the TIH 220m to only two of the three phases.