Doctors recommend that the duration of one-time continuous driving of high-altitude truck drivers should not be too long, especially when the road conditions are not good, the speed should not be too fast, to avoid reducing the damage caused by severe jolts on the spine. Mats are also suitable, Suitable cushions can be placed on the seat and backrest. In addition, the driver should participate in more sports, and it is best to choose a systemic, large-muscle group to participate in sports such as running, brisk walking, etc. Iron Shielded Deep Groove Ball Bearing
Iron shielded Deep Groove Ball Bearing is one type of ball bearings. shields are non-contact metallic (carbon or stainless steel) devices which allow high-speed operation but offer limited protection against the ingress of moisture and dirt. but do not protect against liquids. They add no friction during operation and therefore do not generate heat build-up. Iron shielded deep groove ball bearings often have steel shields installed on one or both sides and are pre-lubricated with grease. While many different retainers are available, pressed steel cages are most commonly used.
Bearing dust shields have been available almost as long as ball bearing itself. Shields are needed to stop the grease lubrication used in these bearings from leaking out. This is particularly important in applications where grease leakage may contaminate the product. The main impetus towards shielded bearings comes from the growing use of [sealed-for-life" bearings in items such as white goods, cars and power tools. Shields are fitted in the outer ring and do not make contact with the inner ring, but form a narrow gap with it.
Depending on the bearing design, series and size, MANU supplies shields in different designs.
With one shield (-Z) on one side or two shields (-2Z/ZZ) on both sides; Due to the manufacturing processes used, open bearings can have turned recesses in the outer ring for shields.
Celarance:
Internal clearance provides the bearing room for expansion between the bearing races and will add a small amount of play between the two rings. Large clearance C3/C4 usually used in harsh environment. with good anti-seize performance used in particularly harsh environment.
Tolerances
The standard version of our single-row deep groove ball bearings has the tolerance class P0
(designs with tighter tolerances available upon request)
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How does a high lift truck driver alleviate back pain?
Because the aerial vehicle driver often maintains a seated position for a long time, the waist often suffers from soreness. The muscles are in a state of static tension and are prone to fatigue of the muscles in the waist. When the psoas muscle is fatigued for a long time and cannot be relaxed, it converts. For the lumbar muscle strain, under the impact of external forces such as high-altitude jockeys, it may even induce lumbar disc herniation.