HLU HF R 48 R Series - Tensioning of V-Belts

31
www.hlu.eu
06.2019
8.3 Tensioning of V-belts
Operating manual
Centrifugal fans
HF R | RV | MRV
RV 28-... R | up to size 355
Nominal fan
size
Fan speed
Quantity
of grea-
sing
1000
min-1
1500
min-1
2000
min-1
2500
min-1
3000
min-1
3500
min-1
4000
min-1
4500
min-1
RV 28-355 R
3500 h 2000 h 1500 h 1000 h 800 h 700 h
10 g
RV 28-400 R
3500 h 2000 h 1500 h 1000 h 800 h 700 h
10 g
RV 28-450 R
3500 h 2000 h 1250 h 900 h
11 g
RV 28-500 R
7000 h 5000 h 3500 h 2000 h 1250 h 900 h
11 g
RV 28-560 R
6500 h 4500 h 3500 h 1800 h 1100 h
16 g
RV 28-630 R
6000 h 4000 h 3000 h 1500 h 1000 h
19 g
RV 28-710 R
5500 h 3500 h 2500 h 1250 h
21 g
RV 28-800 R
5500 h 3500 h 2500 h 1250 h
21 g
Nominal fan
size
Fan speed
Quantity
of grea-
sing
500
min-1
750
min-1
1000
min-1
1500
min-1
2000
min-1
2500
min-1
3000
min-1
3500
min-1
RV 45/63-400 R
3500 h 2000 h 1500 h 1000 h 800 h 700 h
10 g
RV 45/63-450 R
3500 h 2000 h 1500 h 1000 h 800 h 700 h
10 g
RV 45/63-500 R
3250 h 1800 h 1250 h 900 h
11 g
RV 45/63-560 R
maintenance-free
RV 45/63-630 R
6500 h 4500 h 3200 h 1750 h 1100 h
16 g
RV 45/63-710 R
6500 h 4500 h 3200 h 1750 h 1100 h
16 g
RV 45/63-800 R
6000 h 4000 h 3000 h 1500 h
19 g
RV 45/63-900 R
6000 h 4000 h 3000 h 1500 h
19 g
RV 45/63-1000 R
5500 h 3500 h 2500 h 1250 h
24 g
RV 45/63-1120 R
5500 h 3500 h 2500 h 1250 h
24 g
RV 45/63-1250 R
5500 h 3500 h 2500 h 1250 h
24 g
RV 45/63-... R | up to size 355
Pretension of V-belts
Deect a belt (the central belt with multiple-groove pulleys) at right angles to the free belt side by
means of a spring balance. Measure the deexion using a centimetre ruler. A required deexion
(Ea) of 17 mm per 1000 mm of free belt side length was determined. The required deexion is
calculated by means of the following simplied equation:
(e = Centre distance)