Martin Sprocket & Gear

Equal Idlers are designed to support the belt and transport material on the carrying side of the belt. Equal idlers typically consist of 3 rollers with wing rolls at 20, 35 or 45 degree inclinations. Martin Idlers are designed to meet or exceed all Conveyor Equipment Manufacturers Association (CEMA) load standards.

Search  CEMA C Equal Length Steel Idlers - 72 Items

Impact Troughing Idlers are located at loading and transfer points. The rollers are equipped with rubber discs that cushion the impact and reduce costly belt damage. Impact idler frames are reinforced to reduce bending and withstand heavy material loads.

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Unequal Idlers (Picking) are used due to their lower profile design. Typically consist of one long roll in the center and two short inclined wing rollers. This design lays out the material and allows for easy sorting and separation. Unequal Idlers (Picking) are available with steel or impact rollers.

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Unequal Idlers (Picking) are used due to their lower profile design. Typically consist of one long roll in the center and two short inclined wing rollers. This design lays out the material and allows for easy sorting and separation. Unequal Idlers (Picking) are available with steel or impact rollers.

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Steel Returns are used to support the belt on the return side when the conveyed material is not sticky, corrosive or excessively abrasive. These rollers are available with a variety of coatings suitable for the specific application.

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Rubber Disc Returns support belts on the return side when conveying sticky or abrasive materials. The rubber discs flex and offer relief to avoid material build-up caused by excessive carryback. Rollers have flat massed rubber ends to offer support if a belt mistracks from center.

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Steel V-Returns

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Rubber Disc V-Returns

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Flat Carry are used with flat belts where a trough is not required to contain material. They are used for picking, sorting, feeding or plowing material from the belt. Flat Carry are available with Rubber Discs or as Steel Rolls.

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CEMA C
Impact Flat Carry

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Channel Inset Idlers mount down inside a channel frame or vertical mounting surface and bolt horizontally. The low profile design is often used on portable equipment where reducing height is critical. Channel Inset Idlers are available in steel and impact designs.

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CEMA C
Impact Channel Inset Idlers

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Self-Aligners are used to assist with belts that may be misaligned due to environmental conditions. Self-Aligners pivot and attempt to guide the belt back into the center of the troughing idlers. Self-Aligners can be idler, return or flat carry.

Search  CEMA C Equal Steel Idler Self-Aligners

Martin self-aligning idlers, also known as training idlers
function with the same principle as a set of bicycle
handlebars. If the belt tracks off-center, it contacts the
guide rolls prior to the assembly and pivots the top
portion of the frame. This helps to correct belt alignment
by steering the belt back into the trough. CEMA
recommends self-aligning idlers and return self-aligning
idlers be installed at approximately 100ft centers. 

Search  CEMA C Steel Return Self-Aligners

• Misaligned Idlers & Returns
• Belt misaligned coming
out of the Tail Pulley
• Material build up, particularly
on return rolls
• Crooked or damaged structure
• Off center loading in the
conveyor load zone
• Belt profile not fully troughed; no
belt contact with center roll
• Cupped Belt
• Wind, especially in the gravity take-up area

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Also Available :
Shoe Type Self Aligners
• For reversing conveyors or applications with space
constraints
Urethane Covered Return Rolls
• To combat abrasion on the return roll face caused by the
pivoting action
Urethane Disc Return Rolls
• Abrasion resistant however self-cleaning

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Live Shaft Rolls can be provided with pillow block bearings. They are typically used in feeder applications or with higher belt tensions not suitable for conventional flat rollers with internal bearings. Live Shaft Idlers are available in impact, spaced rubber disc and steel configurations.

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CEMA C
Steel Inverted V-Returns

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CEMA C
Rubber Disc Inverted V-Returns

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