IOM/GK(P)/CONICAL ISSUE DATE: 10.11.2015
Page 40 LAST REV. DATE: 01.08.2019
6.0 TECHNICAL DATA:
6.1
Direction of rotation:
The direction of rotation is clockwise when viewed from driving end.
6.2
Specification of oil seal, bearing isolator, quantity of oil, Bearing:
Description
Unit No. 7
Unit No. 7A
Unit No. 10
Unit No. 12
Oil seal DS
32x45x7
32x45x7
45x62x10
55x72x10
Oil seal PS
35x47x7
35x47x7
50x72x10
60x80x12
Qty of oil in
brg. housing
(approx.)
0.5
Litre
0.7
Litre
0.7
Litre
1.0
Litre
Bearing
Driving End
SKF-3307
BECB
(1 No.)
SKF-7307
BECB
(2 No.)
SKF-7310
BECB
(2 No.)
SKF-7312
BECB
(2 No.)
Bearing Non
Driving End
SKF-NU307
(1 No.)
SKF-NU307
(1 No.)
SKF-NU310
(1 No.)
SKF-NU312
(1 No.)
*Bearing
isolator DE
AES LabTecta
32 mm
AES LabTecta
32 mm
AES LabTecta
45 mm
AES LabTecta
55 mm
*Bearing
isolator NDE
AES LabTecta
35 mm
AES LabTecta
35 mm
AES LabTecta
50 mm
AES LabTecta
60 mm
*Against order
6.3 Bearings:
a)
Bearings of SKF make or equivalent and with C3 clearance are used.
Bearings are oil lubricated. Oil level in the bearing housing should be
maintained with the help of constant level oiler. Constant level oiler is a
standard scope of supply.
b)
Maximum allowable temperature of bearings: 82°C.
c)
In case of pumping liquids above 180
o
C, cooling of lubricant oil shall be
necessary. Bearing housing cooling arrangement provided, quantity of
cooling water required is 0.25 m
3
/hr at 6 kg/cm
2
.
d)
In case of new bearings, renew the oil after about 200 hours for first 4
times and then about once a year, if the bearing temperature is always
below 50°C and there is only small risk of contamination. If the bearing
temperature is up to 82°C and if there is danger of contamination, the oil
should be renewed about every six months.
