Conveyor Roller

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Design and Selection of Standard Rollers

In order to create an efficient and effective roller system, it is crucial to determine the dimensions, weight, and characteristics of the items to be conveyed. This becomes even more vital when considering special use conditions. Here’s a guide to help you gather the necessary information for designing your system:

Consider the length, width, and height of the conveyed items.
Ascertain the weight of each conveyance unit.
The condition of the item’s bottom.
Any special requirements regarding the working environment (such as humidity, exceptional heights or lows, and the effects of chemicals)
Whether the conveyor is non-powered or driven by an electric motor.

In order to ensure stable transport of the goods, at least three rollers should be in contact with the item at all times.
For items with soft bag packaging, consider the use of pallets for transportation when necessary.
Distribute the weight of the conveyed items evenly across a sufficient number of rollers, considering the load capacity of each one.

The width of the roller (represented as ‘W’ in product catalogs) should be suitable for different item widths. In general, the width of the conveyed item (represented as ‘A’) should be added to a value between 50 and 150mm.
Depending on the overall conveyor machine’s specific requirements, choose an appropriate installation method for the rollers.

In situations where the item has a high bottom hardness, and assuming it does not affect the safe and normal conveyance, the item’s width can be greater than the length of the roller surface, typically taking W≥0.8A.

Conveyor Roller Load Table

Design and Selection of Conical Rollers

For the conical roller of the curve conveyor, the length of the roller can be referred to the following calculation formula:

Where:
W: Roller surface length
R: Turning radius
A: Width of the conveyed item
L: Length of the conveyed item

Installation Methods And Size Of Standard Roller

Spring-Loaded Installation

This method of installation is convenient for assembly and disassembly. The connecting rack rod enhances strength. Maintain a minimum clearance of 1mm between the roller and rack post-installation. The roller’s installation onto the rack should have a space allowance typically around 0.5mm larger than the shaft’s diameter for easy installation. The enhanced spring can endure a higher axial force, eliminating the need for a cotter pin, ensuring the roller doesn’t dislodge during operation. We offer optimal shaft cores of varied diameters. Please avoid arbitrarily altering the protruding shaft-end length. For custom design requirements, consult our technical department.

Internal Thread Installation

Rollers are bolted to the frame, eliminating the need for frame tie rods, enhancing overall machine stability. The axial length ‘L’ is a crucial dimension in this installation type, as it dictates the rack’s inner width, typically marginally smaller than the rack’s design inner width value (0-1mm). Different diameter shaft cores correspond to distinct internal thread specifications as detailed below:

Shaft Diameter D	Internal Thread Specification
Ø 12	M8×15
Ø 15	M10×20
Ø 17	M10×20
Ø 20	M12×25

Full Flat Tenon Installation

This is prevalent in mine roller groups. The convenient installation method involves the frame punching corresponding holes for the roller to directly insert and remove from the slot. However, the need for a unique mold for punching constrains versatility. Differing diameter shaft cores come with distinct flat tenon specifications:

Shaft Diameter D	Flat tenon specification b×h
Ø8	6×11
Ø12	8×11
Ø15	12×11
Ø20	16×15

Other installation methods will be covered upon request

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Conveyor Roller Types

Select And View More Details Of The Conveyor Rollers

Automatic Boxing Machine
G1200 Universal Conveyor Roller