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Bearing packaging is an important step in bearing export. Improper packaging will bring many problems to bearing products and customers, resulting in unnecessary losses and trouble. Case example： Many bearing suppliers will encounter the problem of bearing packaging, especially large bearings. We learned about this case of bearing packaging complaint from a producer. Bearing type：24044CA.W33.S1，Product weight：39kg，Packaging method: three layers of wrapping packaging, 10 products stacked in a wooden box. Customer complaint: because the product is too heavy, 10 products are stacked in a wooden box, which can not be taken out and moved with the help of tools. Manual handling is not safe, and it is also easy to cause product damage. Large bearing packaging of TBB Therefore, for large bearings, packaging is very important. TBB was considerate in requiring suppliers to pack these large bearings, which not only solved the risk of bearing damage, but also eliminated customers’ safety concerns and greatly improved customers’ satisfaction. The following are the packaging methods and examples of TBB for large bearings. For bearings heavier than 40kg: they are wrapped in three layers. If multiple quantities are stacked in one wooden box, cross wooden frame shall be used to separate each product. It…
Agricultural engineering involves a wide range of machines, equipment and implements. This ranges from tillage machines, tractors, tedders and balers to powerful harvesting equipment such as forage harvesters or combine harvesters. Even if the machines are very different, the operating conditions are always harsh. In summer, dust and sand place high demands on the bearing seals, whereas during the spring and fall, moisture is a real challenge for farmers. Heavy soils test the mechanical strength of all machine parts to the limit. Constant vibrations and high shocks are loads that occur throughout the entire year. This is why the bearing supports in tillage machines have to be particularly robust. Here we’ll make an introduction about tractor. Although there are many types of agricultural tractors with different structures, they are composed of three parts: engine, chassis and electrical equipment. Following are typical bearing arrangements in agricultural tractors: For further requests on bearings used in agricultural machinery, please make a direct contact with TBB
The chassis is the support of construction machinery, which can make the overall unit run in the specified direction at the speed and traction required for operation. According to the characteristics of the traveling system, there are 2 main types of construction machinery chassis: 1.Wheeled chassis, including transmission system, braking system, steering system, traveling system. 2. Tracked chassis, including transmission system, steering system(incl. braking), traveling system, rotary support device(load carrying) Transmission System of Construction Machinery Chassis: The transmission components between the power unit and the driving wheel of construction machinery are collectively referred to as the transmission system. The transmission system is divided into mechanical transmission, hydraulic mechanical transmission, hydraulic transmission and electric transmission. The three main components of transmission system: Gearbox, Differential, Wheel Drive. Gearbox Dual-clutch AT Popular bearing types used: Tapered Roller Bearing Cylindrical Roller Bearing Needle Roller and Cage Assembly 2. AT with hydraulic torque converter Popular bearing types used: Needle Roller and Cage Assembly One-way Clutch Needle Roller Bearing Thrust Needle Roller and Cage Assembly Deep Groove Ball Bearing HK Series Needle Roller Bearing 3. AT with continuously variable transmission Popular bearing types used: Needle Roller and Cage Assembly Tapered Roller Bearing Cylindrical Roller Bearing Deep…
Difference between high-speed and low-speed bearings Many people may misunderstand it, it’s not that the rotation speed of the bearing itself, but its linear speed. Many low speed bearings can reach tens of thousands of revolutions per minute, on the other hand, for some high-speed bearings, the data of rotations per minute maybe only just a few hundred. There are also some other differences between the two. Generally, low-speed bearings have a rougher appearance, and the joints between parts are looser. To ensure its accuracy, the precision of high-speed bearing is generally very smooth on the surface, and the distance between the inner ring and outer ring is minimal, the accuracy is much higher. Many high-speed bearings are also super-precision bearings. It normally use special high speed grease. In terms of material, there is also a slightly difference between high-speed bearing and low-speed bearing. High speed bearings are generally made of very high hardness steel, which can withstand the pressure caused by excessively high speeds. If it’s low, some common materials are used, the requirements for hardness and durability of the material are relatively reduced. What to do if the high-speed bearing is overloaded and hot? 1) In the case…
When bearings are 100% inspected with all dimensions on approved drawings based on GB or ISO standard, we confirm bearings are qualified. Here we would like to share you with a case: One day we received an urgent request from our customer, that they asked us to deliver one SL bearing (full complement cylindrical roller bearing) to them in short time, reason was that the bearings delivered from their current supplier were rejected by their end user. The problem was the flatness of the end face of outer ring. End user inspected the flatness of the end face of outer ring by ZEISS Coordinate Measuring Machine, result was 0.14mm, thus bearings were rejected due to too big flatness 0.14mm. All other parameters are qualified based on GB/ISO standard. For us such problem is the first time to hear, so what is the flatness of the end face of outer ring? See below sketch: This parameter is generally marked on assembly drawing or not? See below sketch: We go further to analyze this issue, following facts were found: There is no GB/ISO standard of the parameter “flatness of end face of outer ring” for any kinds of bearings, so on assembly…
The type of machinery is different, the service conditions of the bearings will be different, and the performance requirements are also different. Generally speaking, there are more than two bearings that would be used on a shaft. In order to facilitate axial positioning, most of the bearings are used as fixed-end bearings, and the rest are used as floating-end bearings. The following table lists the choice of fixed end and floating end bearing structure.