V Pulleys – Cast Iron Mi-Lock

TransDrive’s high-quality cast iron Mi-Lock pulleys are engineered to suit both A and B section V-belts, with pitch circle diameters accurately specified to A section belt sizes. This flexible design makes them ideal for a wide range of single-speed and multi-speed drive applications across industrial environments.

Each TransDrive Mi-Lock pulley is precision balanced to grade Q6.3, delivering smooth, stable, and reliable operation while minimising vibration and wear. The Mi-Lock system enables fast and secure assembly and is available in single or double groove configurations, providing a simple, efficient, and highly adaptable solution for demanding power transmission requirements.

Mi-Lock

Product Specifications

Cast Iron Mi-Lock drawings
Part NoPulley Size
Pitch A
Pulley Size
Pitch B
Outside DiameterMass Kgsuitable Bush & Size
71mm-MI-LOCK71mm81mm88mm0.42No 1
75mm-MI-LOCK75mm85mm92mm0.47No 1
80mm-MI-LOCK80mm90mm97mm0.53No 1
85mm-MI-LOCK85mm95mm102mm0.62No 1
90mm-MI-LOCK90mm100mm107mm0.72No 1
95mm-MI-LOCK95mm105mm111mm0.80No 1
100mm-MI-LOCK100mm110mm117mm0.91No 1
106mm-MI-LOCK106mm116mm123mm0.98No 1
112mm-MI-LOCK112mm122mm129mm1.02No 1
118mm-MI-LOCK118mm128mm135mm1.05No 1
125mm-MI-LOCK125mm135mm142mm1.17No 1
132mm-MI-LOCK132mm142mm149mm1.28No 1
140mm-MI-LOCK140mm150mm157mm1.49No 2
150mm-MI-LOCK150mm160mm167mm1.61No 2
160mm-MI-LOCK160mm170mm177mm1.75No 2
180mm-MI-LOCK180mm190mm197mm2.03No 2
200mm-MI-LOCK200mm209mm216mm2.38No 2
224mm-MI-LOCK224mm233mm240mm3.34No 2
250mm-MI-LOCK250mm259mm266mm4.22No 2
280mm-MI-LOCK280mm289mm296mm4.34No 2
315mm-MI-LOCK315mm324mm331mm4.45No 2
355mm-MI-LOCK355mm364mm371mm4.94No 2
400mm-MI-LOCK400mm409mm416mm7.51No 2
450mm-MI-LOCK450mm459mm466mm9.05No 2

Mi-Lock No 1 Bushes

Bore Size
MetricImperial
10mm3/8″
12mm7/16″
14mm1/2″
15mm9/16″
16mm5/8″
18mm11/16″
19mm3/4″
20mm13/16″
22mm7/8″
24mm15/16″
25mm1″
28mm1-1/16″
1-1/8″

Mi-Lock No 2 Bushes

Bore Size
MetricImperial
16mm1/2″
18mm9/16″
19mm5/8″
20mm11/16″
22mm3/4″
24mm13/16″
25mm7/8″
28mm15/16″
30mm1″
32mm1-1/8″
35mm1-1/16″
38mm1-3/16″
40mm1-1/4″
42mm1-5/16″
1-3/8″
1-7/16″
1-1/2″
1-9/16″