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Description: Also called Quarry Duty, these motors are specifically designed for mining applications. That means an oversized shaft and bearing (for high reliability in overload conditions, such as crushing hard rocks which is a task with a very wide stress range), very high torque (for dealing with large loads for higher productivity), and a larger frame because of the oversizing for extra power (usually longer motors instead of having a larger diameter, to fit in tight locations). These motors are built for strength and durability rather than high RPM. The roller bearings must withstand heavy radial loads, for belt-driven machinery. Low-carbon steel shaft (tough material but not brittle, thus less prone to propagation of surface cracks; it dents rather than cracks). Also, these motors are very tough and sealed conduit box and enclosure, apt for withstanding occasional rock hits and dust. Normally they have at least a Service Factor of 1.15. Service Factor (SF) is the supraunitary number indicating the periodically overload capacity at which the motor can work without overload or damage. E.g., SF 1.25 indicates that a 2 kW motor can function without problems at 1.25 x 2 kW = 2.5 kW
Item ID
Item
Price
Quantity
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#1310223
$11,196.09 Each
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#1310230
$17,514.65 Each
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#1310211
$4,741.31 Each
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#1310226
$21,352.80 Each
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#1310233
$23,352.86 Each
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#1310244
$23,416.44 Each
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#1310215
$12,830.35 Each
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#1310222
$10,796.99 Each
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#1310235
$16,754.78 Each
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#1310242
$27,727.36 Each
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#1310216
$17,155.40 Each
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#1310245
$29,430.24 Each
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