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Fixed Center Drives
1/3 Through 5 HP, “A” and “B” Belts
    The Econoline fixed center drive uses a driver pulley that is manually adjustable. (Refer to the description of Econoline fixed center drives on page VSD-14). There are two types of controllable pulleys: the M type with a hand wheel and built-in adjusting device, and the MLA type that uses an external control. The MLA type pulley can be used with the Lovejoy Model 76 Control Stand or some other type of linear controller. CJ CJ
    Spring-loaded pulleys are through-bored for all types of shaft mounting arrangements. The exposed spring design allows for a cooler running pulley and permits easy cleaning. Complete spring enclosures are available as an option on some models.
Belt Selection
    Econoline pulleys are designed specifically for “A” and “B” section drive belts, though they can also be used with “4L” and “5L” belts if necessary. Cogged, raw-edge belts have a definite advantage over wrapped types because they readily form around small pitch diameters, and provide a better arc of contact and provide best possible transmission of torque. If a “slip clutching” effect is desirable to protect machinery in the
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Unit of Measure

Specifications

Description 

M-70-5/8-PULLEY

Belt Type

B

Model

M-70

Drive Type

Fixed Center - Driver

Weight

9.00 lb

UPC Number

37299

Dimensional Data

Bore Diameter 

5/8 in

Keyway Size 

3/16 x 3/32 in

Outside Diameter

7.000 in

Max. Pitch Diameter (Dimension PD)

6.650 in

Min. Pitch Diameter (Dimension PD)

3.340 in

Overall Length

6.690 in

Cubic inches

327.81000 in³

Performance Data

HP Range

0.5 to 5 hp

Notes

Notes 

  • Horsepower and torque rating of each of these pulleys is dependent upon the driven spring-loaded pulley with which it is matched.