Material Handling Systems

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Idlers & Pulleys

Idlers

MACMET offers idlers for trouble free conveyor operations. A wide range of 'sealed for life' type idlers, with either seize resistant or deep groove ball bearings, are supplied to the specific requirements. Fixed bracket type (both in-line & staggered) and garland type idlers with roll diameters from 76.1 mm to 219.1 mm are manufactured by MACMET.


Idlers are made from ERW black tubes conforming to IS:9295. The bearing housings are made out of deep drawn quality steel sheets. The pressed steel bearing housings are simultaneously welded on both sides of the tube to form a mono block construction. The idler spindles are made from EN-8/C-40 materials and are precision machined.

Belt Widt
(mm)
Three Roll
Troughing Idler
Length (mm)
Two Roll Return
Idler Length (mm)
Single Roll
Return
Idler Length (mm)
Roller
Diameter (mm)
Bearing
size (mm)
Shaft Diameter
at Bearing (mm)
500 200   600 76.1-88.9-101.6 20 20
650 250   750 88.9-101.6-114.3 20 20
800 315 465 950 101.6-114.3-127.0 20 20
1000 380 600 1150 114.3-127.0-139.7 20-25 20-25
1200 465 700 1400 127.0-139.7-152.4 20-35-30 20-35-30
1400 530 800 1600 127.0-139.7-152.4 20-35-30 20-35-30
1600 600 900 1800 139.7-152.4-168.3 25-30-40 25-30-40
1800 670 1000 2000 139.7-152.4-168.3 25-30-40 25-30-40
2000 735 1100 2200 139.7-152.4-168.3 25-30-40 25-30-40
2400 900 1350 2700 152.4-168.3-193.7 30-40-45 30-40-45
2800 1035 1552 3100 168.3-193.7-219.1
40-45-50 40-45-50


Pulleys

MACMET pulleys are time tested drive components for all types of belt conveyor systems. They are robust and reliable with long service life. Basic pulley diameters are 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1400 & 1600 mm. The pulleys, unless otherwise agreed with the customer, are rolled and fabricated from low carbon steel plates with end/centre disc welded to the shell. For specific requirements and applications, turbo diaphragm type cast steel end discs are also used. All pulley shafts are made from C-40/EN-8 grade steel.


The pulley shaft is generally keyed with the hub. Macmet also manufactures pulleys with tapered locking assembly arrangement.

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