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Drawn Cup Needle Roller Bearing HF 0812
Before delving into one-way needle roller bearings, it's essential to understand the fundamental principles behind roller bearings in general. Roller bearings are mechanical components designed to reduce friction between moving parts while allowing for the transmission of axial and radial loads. They achieve this by replacing sliding friction with rolling friction.
HF One Way Needle Roller bearings are constructed from a drawn cup with needle roller clutches with three row needle rollers and have a small radial section height. Needle Roller Bearings are designed to transmit torque between the shaft and housing in one direction and allow free motion in the opposite direction.
It is a specific type of roller bearing, are designed with cylindrical rollers that have a length much greater than their diameter. This unique design enables needle roller bearings to handle high radial loads with a relatively small cross-sectional profile.
Shaft Diameter | Bearing Designation | Mass Approx | Dimensions | Permissible Torque | Limiting Speed | Suitable Drawn Cup Bearings | ||||
Shaft dia. | Outer dia. | Thickness | Rotating Shaft Min-1 | Rotating Outer Ring Min-1 | ||||||
mm | Plastic Springs | Steel Springs | g | mm | Nm | rpm | rpm | |||
3 | HF0306KF | 0.9 | 3 | 6.5 | 6 | 0.2 | 36000 | 7000 | HK0306TN | |
4 | HF0406KF | -- | 1 | 4 | 8 | 6 | 0.34 | 34000 | 8000 | HK0408TN |
HF0406KFR | -- | 1 | 4 | 8 | 6 | 0.1 | 34000 | 8000 | HK0408TN | |
6 | HF0608KF | 2.8 | 6 | 10 | 8 | 1.5 | 20000 | 11000 | HK0608 | |
HF0612KF | HF0612 | 3 | 6 | 10 | 12 | 1.76 | 23000 | 13000 | HK0608 | |
HF0612KFR | HF0612R | 3 | 6 | 10 | 12 | 1.76 | 23000 | 13000 | HK0608 | |
HF061210 | 3.5 | 6 | 12 | 10 | 3 | 20000 | 13000 | HK061208 | ||
8 | HF0812KF | HF0812 | 3.5 | 8 | 12 | 12 | 3.15 | 17000 | 12000 | HK0808 |
HF0812KFR | HF0812R | 3.5 | 8 | 12 | 12 | 4 | 17000 | 12000 | HK0808 | |
-- | HF061210 | 3.2 | 8 | 12 | 10 | 3 | 16000 | 12000 | HK0808 | |
-- | HF081410 | 3.6 | 8 | 14 | 10 | 4.6 | 15000 | 11000 | HK081410 | |
-- | HF081610 | 4.1 | 8 | 16 | 10 | 5.5 | 15000 | 11000 | HK081610 | |
-- | HF081412 | 4 | 8 | 14 | 12 | 5 | 16000 | 12000 | HK081410 | |
10 | HF1012KF | HF1012 | 4 | 10 | 14 | 12 | 5.3 | 14000 | 11000 | HK1010 |
HF1012KFR | HF1012R | 4 | 10 | 14 | 12 | 5.3 | 14000 | 11000 | HK1010 | |
HF101612 | 4.8 | 10 | 16 | 12 | 6 | 12000 | 10000 | |||
12 | -- | HF1216 | 11 | 12 | 18 | 16 | 12.2 | 11000 | 8000 | HK1212 |
14 | -- | HF1416 | 13 | 14 | 20 | 16 | 17.3 | 9500 | 8000 | HK1412 |
16 | -- | HF1616 | 14 | 16 | 22 | 16 | 20.5 | 8500 | 7500 | HK1612 |
18 | -- | HF1816 | 16 | 18 | 24 | 16 | 24.1 | 7500 | 7500 | HK1812 |
20 | -- | HF2016 | 17 | 20 | 26 | 16 | 28.5 | 7000 | 6500 | HK2010 |
25 | -- | HF2520 | 30 | 25 | 32 | 20 | 66 | 5500 | 5500 | HK2512 |
30 | -- | HF3020 | 36 | 30 | 37 | 20 | 90 | 4500 | 4500 | HK3012 |
35 | -- | HF3520 | 40 | 35 | 42 | 20 | 121 | 3900 | 3900 | HK3512 |
Recommended needle roller bearings for reference :
OWC Powder Metallurgy Bearing
HFL One Way Needle Bearing
HK Drawn Cup Bearing
Components of One-Way Needle Roller Bearings
To better understand the structure of one-way needle roller bearings, let's break down their key components:
Outer Race: This is the outer ring of the bearing, which is typically stationary and provides a stable mounting surface.
Inner Race: The inner ring of the bearing, often attached to a rotating shaft, facilitates the transmission of torque.
Needle Rollers: These are cylindrical rollers with a high length-to-diameter ratio. They fit into the cage assembly and engage with the races to transmit torque.
Cage Assembly: The cage assembly holds the needle rollers in place, maintaining proper spacing and alignment.
The working principle of one-way needle roller bearings is relatively simple. They consist of an outer race, an inner race, and a cage assembly containing needle rollers. The inner race is usually attached to a shaft, while the outer race is typically housed in a stationary component. When torque is applied in the direction that allows the rollers to engage with the races, the bearing transmits the rotational motion efficiently. However, when torque is applied in the opposite direction, the rollers disengage, allowing free rotation.
Maintenance of one-way needle roller bearings begins with regular inspection. Check for signs of wear, damage, or contamination. Any deviation from the normal condition should be addressed promptly.
Proper lubrication is crucial to the longevity of one-way needle roller bearings. Ensure that the recommended lubricant is used and applied according to the manufacturer's guidelines. Regularly check and replenish lubricant as needed.
Pay attention to the operating environment. If the bearing is exposed to extreme temperatures, corrosive substances, or excessive moisture, take appropriate measures to protect it or consider using bearings designed for such conditions.
When one-way needle roller bearings show signs of significant wear or damage, they should be replaced promptly. Delaying replacement can lead to more extensive damage to surrounding components.
One-way needle roller bearings are remarkable components that play a pivotal role in countless mechanical systems, ensuring precise unidirectional motion and preventing damage to critical components. Their simple yet effective design, versatile applications, and straightforward maintenance make them invaluable assets in the world of engineering and industry. Understanding the principles, structure, applications, and maintenance of one-way needle roller bearings is essential for engineers and maintenance professionals alike, as it empowers them to make informed decisions and optimize the performance of machinery and systems across various sectors.
FAQ
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years .
2. Can i have Samples to check quality first ?
It is okay to get needle roller bearing sample for quality check, we provide 5-10 pieces sample free of charge.
3. How can i choose the correct needle roller bearing i need ?
Torque capacity , Rotation Speed , and Dimensions are necessary to choose the right model.
If you not so sure about it, pls share with us, our engineer will give you professional guidance .
4. What Material of the bearings you are supplied ?
Standard Material : Outer Race : ST14, Needle Roller: GCr15 , Cage: PA66
Stainless Steel Material available too .
5. How soon you can make the shipment ?
Usually all are in stock, can ship out within 2-3 days .
If big quantity, can ship out in 10 days .
Customized sizes may need 15-20 days , Depends on specific order.
Drawn Cup Needle Roller Bearing HF 0812
Before delving into one-way needle roller bearings, it's essential to understand the fundamental principles behind roller bearings in general. Roller bearings are mechanical components designed to reduce friction between moving parts while allowing for the transmission of axial and radial loads. They achieve this by replacing sliding friction with rolling friction.
HF One Way Needle Roller bearings are constructed from a drawn cup with needle roller clutches with three row needle rollers and have a small radial section height. Needle Roller Bearings are designed to transmit torque between the shaft and housing in one direction and allow free motion in the opposite direction.
It is a specific type of roller bearing, are designed with cylindrical rollers that have a length much greater than their diameter. This unique design enables needle roller bearings to handle high radial loads with a relatively small cross-sectional profile.
Shaft Diameter | Bearing Designation | Mass Approx | Dimensions | Permissible Torque | Limiting Speed | Suitable Drawn Cup Bearings | ||||
Shaft dia. | Outer dia. | Thickness | Rotating Shaft Min-1 | Rotating Outer Ring Min-1 | ||||||
mm | Plastic Springs | Steel Springs | g | mm | Nm | rpm | rpm | |||
3 | HF0306KF | 0.9 | 3 | 6.5 | 6 | 0.2 | 36000 | 7000 | HK0306TN | |
4 | HF0406KF | -- | 1 | 4 | 8 | 6 | 0.34 | 34000 | 8000 | HK0408TN |
HF0406KFR | -- | 1 | 4 | 8 | 6 | 0.1 | 34000 | 8000 | HK0408TN | |
6 | HF0608KF | 2.8 | 6 | 10 | 8 | 1.5 | 20000 | 11000 | HK0608 | |
HF0612KF | HF0612 | 3 | 6 | 10 | 12 | 1.76 | 23000 | 13000 | HK0608 | |
HF0612KFR | HF0612R | 3 | 6 | 10 | 12 | 1.76 | 23000 | 13000 | HK0608 | |
HF061210 | 3.5 | 6 | 12 | 10 | 3 | 20000 | 13000 | HK061208 | ||
8 | HF0812KF | HF0812 | 3.5 | 8 | 12 | 12 | 3.15 | 17000 | 12000 | HK0808 |
HF0812KFR | HF0812R | 3.5 | 8 | 12 | 12 | 4 | 17000 | 12000 | HK0808 | |
-- | HF061210 | 3.2 | 8 | 12 | 10 | 3 | 16000 | 12000 | HK0808 | |
-- | HF081410 | 3.6 | 8 | 14 | 10 | 4.6 | 15000 | 11000 | HK081410 | |
-- | HF081610 | 4.1 | 8 | 16 | 10 | 5.5 | 15000 | 11000 | HK081610 | |
-- | HF081412 | 4 | 8 | 14 | 12 | 5 | 16000 | 12000 | HK081410 | |
10 | HF1012KF | HF1012 | 4 | 10 | 14 | 12 | 5.3 | 14000 | 11000 | HK1010 |
HF1012KFR | HF1012R | 4 | 10 | 14 | 12 | 5.3 | 14000 | 11000 | HK1010 | |
HF101612 | 4.8 | 10 | 16 | 12 | 6 | 12000 | 10000 | |||
12 | -- | HF1216 | 11 | 12 | 18 | 16 | 12.2 | 11000 | 8000 | HK1212 |
14 | -- | HF1416 | 13 | 14 | 20 | 16 | 17.3 | 9500 | 8000 | HK1412 |
16 | -- | HF1616 | 14 | 16 | 22 | 16 | 20.5 | 8500 | 7500 | HK1612 |
18 | -- | HF1816 | 16 | 18 | 24 | 16 | 24.1 | 7500 | 7500 | HK1812 |
20 | -- | HF2016 | 17 | 20 | 26 | 16 | 28.5 | 7000 | 6500 | HK2010 |
25 | -- | HF2520 | 30 | 25 | 32 | 20 | 66 | 5500 | 5500 | HK2512 |
30 | -- | HF3020 | 36 | 30 | 37 | 20 | 90 | 4500 | 4500 | HK3012 |
35 | -- | HF3520 | 40 | 35 | 42 | 20 | 121 | 3900 | 3900 | HK3512 |
Recommended needle roller bearings for reference :
OWC Powder Metallurgy Bearing
HFL One Way Needle Bearing
HK Drawn Cup Bearing
Components of One-Way Needle Roller Bearings
To better understand the structure of one-way needle roller bearings, let's break down their key components:
Outer Race: This is the outer ring of the bearing, which is typically stationary and provides a stable mounting surface.
Inner Race: The inner ring of the bearing, often attached to a rotating shaft, facilitates the transmission of torque.
Needle Rollers: These are cylindrical rollers with a high length-to-diameter ratio. They fit into the cage assembly and engage with the races to transmit torque.
Cage Assembly: The cage assembly holds the needle rollers in place, maintaining proper spacing and alignment.
The working principle of one-way needle roller bearings is relatively simple. They consist of an outer race, an inner race, and a cage assembly containing needle rollers. The inner race is usually attached to a shaft, while the outer race is typically housed in a stationary component. When torque is applied in the direction that allows the rollers to engage with the races, the bearing transmits the rotational motion efficiently. However, when torque is applied in the opposite direction, the rollers disengage, allowing free rotation.
Maintenance of one-way needle roller bearings begins with regular inspection. Check for signs of wear, damage, or contamination. Any deviation from the normal condition should be addressed promptly.
Proper lubrication is crucial to the longevity of one-way needle roller bearings. Ensure that the recommended lubricant is used and applied according to the manufacturer's guidelines. Regularly check and replenish lubricant as needed.
Pay attention to the operating environment. If the bearing is exposed to extreme temperatures, corrosive substances, or excessive moisture, take appropriate measures to protect it or consider using bearings designed for such conditions.
When one-way needle roller bearings show signs of significant wear or damage, they should be replaced promptly. Delaying replacement can lead to more extensive damage to surrounding components.
One-way needle roller bearings are remarkable components that play a pivotal role in countless mechanical systems, ensuring precise unidirectional motion and preventing damage to critical components. Their simple yet effective design, versatile applications, and straightforward maintenance make them invaluable assets in the world of engineering and industry. Understanding the principles, structure, applications, and maintenance of one-way needle roller bearings is essential for engineers and maintenance professionals alike, as it empowers them to make informed decisions and optimize the performance of machinery and systems across various sectors.
FAQ
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years .
2. Can i have Samples to check quality first ?
It is okay to get needle roller bearing sample for quality check, we provide 5-10 pieces sample free of charge.
3. How can i choose the correct needle roller bearing i need ?
Torque capacity , Rotation Speed , and Dimensions are necessary to choose the right model.
If you not so sure about it, pls share with us, our engineer will give you professional guidance .
4. What Material of the bearings you are supplied ?
Standard Material : Outer Race : ST14, Needle Roller: GCr15 , Cage: PA66
Stainless Steel Material available too .
5. How soon you can make the shipment ?
Usually all are in stock, can ship out within 2-3 days .
If big quantity, can ship out in 10 days .
Customized sizes may need 15-20 days , Depends on specific order.
