ERGONOMICS & MAINTENANCE TIPS

THE RIGHT CASTERS AND WHEELS CAN PREVENT INJURIES

Required push/pull force is the most important component of ergonomic performance regarding the manual moving of carts with casters. The weight load of the cart (and its cargo) being moved is important, however the casters and wheels the cart is being moved upon play a key role in the ease with which the cart is moved.

Push Pull Scale

PUSH RATHER THAN PULL

Pushing a cart is preferable to pulling because:

• Workers moving the cart don’t put themselves at risk for being run into or their feet being run over by the rolling cart

• The path of movement is more visible while pushing facing forward versus occasionally turning around while pulling

• Pulling puts the shoulders and back in an awkward position

• Force is generated more easily with pushing than it is with pulling


ERGONOMICS’ FINANCIAL IMPACT

money-pit

Quality of Output

Health & Safety

Productivity

are affected financially when there’s a poor combination of

Tools

People

Work

• The reduction of unnecessary and/or awkward movements reduces the time and effort necessary to complete a task


WHEELS’ ROLE IN ERGONOMICS

Wheel Composition

• The resiliency of the wheel is an important factor in determining how the wheel performs when rolling over physical barriers such as thresholds or debris.

Softer (lower durometer) wheels to some extent conform to the shape of the object(s) that they roll over, meaning debris and barriers do not typically cause damage to softer wheels.

Wheels that have the proper durometer and resiliency reject embedding of debris and flat-spotting. Embedding typically occurs in hard, non-resilient wheels and can cause floor damage, added rolling resistance, increase noise and vibration.

Harder wheels typically roll easier than soft wheels. When using hard wheels, one must consider the likelihood of the wheels encountering debris and the floor type.

• Wheel Diameter

The larger the diameter of a wheel, the lower the rolling resistance will be. While this is an important factor, it is frequently overlooked.

• The more uneven or coarse a floor is, the larger the wheel’s diameter should be. Rough floor conditions may include thresholds, debris, grates, etc.


A WHEEL THAT MEETS ERGONOMIC NEEDS

The CC Apex wheel was developed after a major automotive manufacturer approached Caster Connection looking for a solution to the problems they faced in their tow line applications.

Those problems included:

Push/Pull Ergonomics

Debris Retention

Increasing Weight Requirements

The CC Apex ’s high quality polyurethane

Dramatically reduced push/pull force requirements with its incredible rebound and resiliency

Eliminated all debris retention in the wheel, thus maintaining easy maneuverability and protecting the flooring

Provided the necessary load capacities for the increasing weight in the customer’s applications

 


RIG/FORK ROLE IN ERGONOMICS

Traditional Kingpin Swivel Caster

Kingpin

• Composed of an upper and lower ball race held together with a nut and bolt or riveted kingpin

Kingpinless Swivel Caster

Kingpinless

• Composed of a forged inner and outer race that are held together by the ball bearings

Maintenance-Free Swivel Caster

MFree

• Composed of a sealed precision-ball or other sealed- ball raceway


Type of Raceway

Traditional Kingpin Swivel Caster

• End user can tighten the kingpin so as the caster wears over time, the life of the caster can be extended.

Kingpinless Swivel Caster

• Load is concentrated on the ball bearings distributing the load over a larger surface area, which allows the rig to be used in heavy and higher speed applications. The ease of swivel action helps reduce push/pull force as well.

Maintenance-Free Swivel Caster

• Load is concentrated on the primary thrust bearing - which has seated ball bearings - and the secondary load bearing; this allows for even disperson of load to allow use in a towing application and reduce push/pull more than a kingpinless design.

RIG/FORK ROLE IN ERGONOMICS (CONT)

Length of the Swivel Lead

Swivel Lead

Swivel_Lead

• The distance from the axle hole to the center of the swivel raceway

Standard Lead

Standard_Lead

• Like it’s name implies, the standard lead is the most common variation in caster forks - this length varies with the diameter of the caster

Extended Lead

Extended_Lead

• Longer swivel lead than the traditional standard lead


RIG/FORK ROLE IN ERGONOMICS (CONT)

By increasing the length of the Swivel Lead

 

Chatter/Flutter is reduced in towing applications, in addition to

• Reducing noise

• Prolonging the life of the product as unnecessary stress is eliminated

Required push/pull force is reduced

• By extending the lead, the caster naturally settles into the trailing position

• Due to the caster rotating much more easily and freely


A CASTER THAT MEETS ERGONOMIC NEEDS

MFree_Apex
Caster Featuring CC Apex wheel w/ CC Peak rig

The CC Peak Maintenance-Free Swivel Caster is designed to meet the demanding requirements of manufacturing environments. Those requirements include

• Push/Pull Ergonomics

• Durability – Stands up to abuse

• No maintenance required

The CC Peak ’s Robust Ergonomic Design

Dramatically reduces push/pull force requirements with its precise raceway and extended lead

Stands the test of time and abuse with the thick forged steel legs/raceway

Requires no maintenance with the sealed raceway and lifelong grease


NEXT STEP: CONTACT US!

Contact us today for solutions to your caster, wheel and hand truck needs. Our expert sales staff and product availability will ensure that you implement the proper product the 1st time. Still want more info? Contact: sales@casterconnection.com