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In the realm of mechanical engineering, needle roller bearings stand out as remarkably versatile and efficient components, known for their ability to withstand heavy loads while minimizing friction. These compact wonders pack a multitude of small cylindrical rollers, resembling needles, into a limited space, enabling them to handle substantial forces within confined dimensions. Their compact design and high load capacity make them ideal for various applications, ranging from automotive and industrial machinery to medical devices.
6. Used in automotive and truck transmissions, agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others 7. Can be open on both ends (a shaft can pass through) or open on one end and closed on the other 8. Sealed or shielded to protect the bearing from solid contaminants and moisture 9. Manufactured by Koyo Bearings USA, meeting ISO standards 14001 and TS 16949 for quality assurance
MEETOOT 2 Sets Thrust Needle Roller Bearings NTA1220+2TRA Thrust Needle Roller Bearing with Two Washers...
6. Package includes: 2 x Thrust Needle Roller Bearings NTA1220+2TRA + 4 x Washers 7. Easy installation: The bearing is pre-assembled with two washers, which are easy to install and can be used in a variety of applications. 8. High quality: The bearing is made of high quality bearing steel, which ensures its high hardness and durability. 9. Maximum Rotational Speed (Oil): 14000rpm 10. Dynamic Load Capacity (Cr): 7873N; Static Load Capacity (Cor): 27088N
Mop Bearing Needle Roller Bearings HF081412 One Way Bearing 8mm Bore 14mm OD 12mm Width
uxcell AXK2035 Thrust Needle Roller Bearings with Washers 20mm Bore 35mm OD 2mm Width 2pcs
uxcell AXK2035 Thrust Needle Roller Bearings with Washers 20mm Bore 35mm OD 2mm Width 10pcs
uxcell AXK2035 Thrust Needle Roller Bearings with Washers 20mm Bore 35mm OD 2mm Width 5pcs
PZRT 2 Sets Thrust Needle Roller Bearings NTA1220+2TRA Thrust Needle Roller Bearing with Two Washers
6. High quality: Strict quality control ensures the product quality is stable and reliable. 7. Package includes: 2 sets thrust needle roller bearings NTA1220+2TRA 8. Load capacity: Dynamic load capacity (Cr): 7873N, Static load capacity (Cor): 27088N, Maximum speed (oil): 14000rpm.
XIKE 10 Pcs HF081412 8x14x12mm Outer Octagon One Way Needle Roller Bearings Compatible O
6 Pieces Needle Roller Bearings One Way Bearing Small Octagonal Bearings Industrial Bearings 8mm Bore...
⋅ Sufficient quantity: you will get 6 pieces needle roller bearings, ...
uxcell TC411 Thrust Needle Roller Bearings with Washers 1/4" Bore 11/16" OD 5/64" Width 3pcs
uxcell AXK0819 Thrust Needle Roller Bearings with Washers 8mm Bore 19mm OD 2mm Width 10pcs
⋅ [MATERIAL] - Chromium steel rollers for heat tolerance and durability under heavy loads;...
uxcell RCB121616 Needle Roller Bearings, One Way Bearing, 3/4" Bore 1" OD 1" Width 2pcs
6. High radial load capacity, low noise and vibration 7. Easy to install with press machine or special tools 8. Suitable for agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.
uxcell HK0608 Drawn Cup Needle Roller Bearings, Open End, 6mm Bore Dia, 10mm OD, 8mm Width (Pack of ...
ATOPLEE AXK0819+2AS Thrust Needle Roller Bearings 1pc Cage Needle + 2pcs Washers [ 8x19mm, 10pcs]
Tip 1: Consider the Load Capacity
One of the most critical factors to consider when selecting a needle roller bearing is its load capacity. Load capacity refers to the maximum static and dynamic load that a bearing can handle without suffering any deformation or failure. It is essential to choose a bearing that can carry the maximum load capacity for your application.Static Load Capacity
The static load capacity is the maximum load that a needle roller bearing can support without causing any permanent deformation. This typically refers to the load applied to the bearing when it is stationary or rotating at low speeds. To determine the static load capacity, you should consider the maximum load that the bearing will experience during its service life.Dynamic Load Capacity
The dynamic load capacity is the maximum load that a needle roller bearing can support without experiencing any fatigue failure. It typically refers to the load applied to the bearing when it is rotating at high speeds. To determine the dynamic load capacity, you should consider the maximum load that the bearing will experience during its service life.Tip 2: Choose the Right Cage Material
The cage holds the needle rollers and ensures that they are properly spaced inside the bearing. It also helps to guide the rollers, prevent them from falling out, and reduce friction between them. Choosing the right cage material is an important factor in determining the performance and durability of a needle roller bearing.Metal Cages
Metal cages are commonly used in needle roller bearings. They are made from materials such as steel, brass, or bronze. Metal cages are strong and durable, and they can withstand high temperatures and heavy loads. However, they may create more friction and noise than other cage materials.Plastic Cages
Plastic cages are an excellent option for applications where noise and weight reduction are critical. They are typically made from materials such as nylon, PEEK, or polymer. Plastic cages are also corrosion-resistant and can operate at high speeds. However, they may not be as durable as metal cages and may have limited temperature ranges.Tip 3: Check Bearing Dimensions
Another important factor to consider when choosing a needle roller bearing is its dimensions. The dimensions of a bearing include its inner diameter, outer diameter, width, and overall size. You should ensure that the bearing dimensions match your application requirements.Inner Diameter
The inner diameter of a needle roller bearing refers to the size of the bore or the hole in the center of the bearing. This dimension is critical because it determines the size of the shaft that will be used with the bearing. The shaft must fit snugly into the bearing's inner diameter to ensure proper operation.Outer Diameter
The outer diameter of a needle roller bearing refers to the size of the bearing's outer race. This dimension is critical because it determines the size of the housing or the space in which the bearing will be installed. The housing must fit snugly around the bearing's outer diameter to ensure proper operation.Tip 4: Choose the Right Lubrication
Lubrication is essential for ensuring smooth operation, reducing friction, and preventing premature wear and tear of a needle roller bearing. Choosing the right lubrication is critical for the performance and lifespan of the bearing.Grease Lubrication
Grease lubrication is the most common type of lubrication used in needle roller bearings. It is easy to apply and can provide long-lasting protection against corrosion, wear, and contamination. Grease lubrication can also be sealed to prevent dirt and debris from entering the bearing.Oil Lubrication
Oil lubrication is another option for needle roller bearings. It is typically used in high-speed applications where grease lubrication may not be suitable. Oil lubrication can provide excellent cooling and reduce friction between the bearing and the other components.Conclusion
Choosing the right needle roller bearing is essential for ensuring proper operation, reducing downtime, and extending the lifespan of your application. By considering factors such as load capacity, cage material, bearing dimensions, and lubrication, you can select the best needle roller bearing to meet your application requirements.Related Topics You Might Like
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