Parameter of AA One Way Bearings
型号 Type | 尺寸Size | 扭矩Torque | 超越转速 Overrunning Speeds | 外形尺寸 Dimensions | 重量Weight | 阻力矩 Drag Torque | |||||||||
dH7 [mm] | TKN1) [Nm] | Nimax2) [min-1] | Namax3) [min-1] | Dh₇ [mm] | D₅ [mm] | D₆ [mm] | D₃ [mm] | Z | O [mm] | L [mm] | f [mm] | s [mm] |
[kg] | TR [Ncm] | |
AA | 12 | 17 | 3100 | 6000 | 47 | 28 | 20 | 38 | 3 | 5.5 | 20 | 0.5 | 4.5 | 0.21 | 0.7 |
15 | 55 | 2300 | 5400 | 55 | 37 | 26 | 45 | 3 | 5.5 | 30 | 0.8 | 4.5 | 0.44 | 3.5 | |
20 | 146 | 2000 | 3600 | 68 | 50 | 35 | 58 | 4 | 5.5 | 34 | 0.8 | 5.5 | 0.7 | 8.4 | |
25 | 285 | 1700 | 2600 | 90 | 68 | 45 | 78 | 6 | 5.5 | 37 | 1 | 6.5 | 1.3 | 14 | |
30 | 500 | 1500 | 2100 | 100 | 75 | 50 | 87 | 6 | 6.6 | 44 | 1 | 6.5 | 2 | 23 | |
35 | 720 | 1300 | 1950 | 110 | 80 | 55 | 96 | 6 | 6.6 | 48 | 1 | 6.5 | 2.6 | 60 | |
40 | 1030 | 1200 | 1700 | 125 | 90 | 60 | 108 | 6 | 9 | 56 | 1.5 | 7.6 | 3.9 | 72 | |
45 | 1125 | 1050 | 1500 | 130 | 95 | 65 | 112 | 8 | 9 | 56 | 1.5 | 7.6 | 4 | 140 | |
50 | 2150 | 950 | 1300 | 150 | 110 | 75 | 132 | 8 | 9 | 63 | 1.5 | 7.6 | 6 | 180 | |
55 | 2675 | 850 | 1200 | 160 | 115 | 82 | 138 | 8 | 11 | 67 | 2 | 7.6 | 7.2 | 190 | |
60 | 3500 | 800 | 1100 | 170 | 125 | 90 | 150 | 10 | 11 | 78 | 2 | 7.6 | 9.2 | 240 | |
70 | 5813 | 650 | 900 | 190 | 140 | 100 | 165 | 10 | 11 | 95 | 2.5 | 7.6 | 11.8 | 320 | |

Customized type is also available to produce , pls feel free to contact for negotiation .
Understanding the working principle of AA one-way bearings is fundamental to appreciating their significance in mechanical systems.
Engagement Phase:
When torque is applied in the designated direction, the sprags or rollers engage.
This engagement allows for smooth and controlled rotation of the inner race with respect to the outer race.
Disengagement Phase:
When force is applied in the opposite direction, the sprags or rollers disengage.
This prevents backward movement, maintaining the unidirectional nature of the rotation.
The versatility of AA one-way bearings is showcased through their widespread applications across various industries.
In the automotive sector, AA one-way bearings find applications in:
Starter Motors :
Enabling the transmission of rotational motion to the engine's crankshaft.
Preventing the engine from forcing the starter motor to spin, ensuring smooth engine starts.
In industrial settings, these bearings play a vital role in:
Conveyor Systems:
Preventing reverse motion in conveyor systems, ensuring controlled movement.
Packaging Machinery:
Maintaining controlled motion to avoid damage or malfunction caused by accidental reverse motion.
In the realm of sports and recreation, AA one-way bearings are commonly found in:
Bicycles:
Powering the freewheel mechanism, allowing cyclists to coast without pedaling while ensuring power transmission when pedaling forward.
In modern robotics and automation, these bearings contribute to:
Precision Robotics:
Enabling precise and controlled movement in robotic arms and mechanisms
Limited Reverse Load:
AA one-way bearings are not designed to handle substantial reverse loads.
Maintenance Requirements:
Regular lubrication and proper handling are essential for maintaining optimal performance and longevity.
To ensure the longevity of AA one-way bearings, proper lubrication is paramount. Regular application of high-quality lubricant helps reduce friction and wear, contributing to the efficiency of the mechanism.
Appropriate handling and storage practices contribute significantly to the extended lifespan of AA one-way bearings. Avoiding excessive impact and keeping the bearing free from contaminants are essential precautions.
Can AA one way bearings be used in high-speed applications?
Yes, AA one-way bearings are designed to handle high-speed applications with precision.
Are you Trading Company or Manufacturer?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years
Can i have AA One-Way Bearings Samples to check quality first
You are encourged to get one way bearing sample for quality check .
How soon you can make the shipment of my AA One Way Bearing order ?
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.
Is there guarantee of One Way Bearings purchased?
We provide 1 year warranty for all backstop clutch we sell.
Parameter of AA One Way Bearings
型号 Type | 尺寸Size | 扭矩Torque | 超越转速 Overrunning Speeds | 外形尺寸 Dimensions | 重量Weight | 阻力矩 Drag Torque | |||||||||
dH7 [mm] | TKN1) [Nm] | Nimax2) [min-1] | Namax3) [min-1] | Dh₇ [mm] | D₅ [mm] | D₆ [mm] | D₃ [mm] | Z | O [mm] | L [mm] | f [mm] | s [mm] |
[kg] | TR [Ncm] | |
AA | 12 | 17 | 3100 | 6000 | 47 | 28 | 20 | 38 | 3 | 5.5 | 20 | 0.5 | 4.5 | 0.21 | 0.7 |
15 | 55 | 2300 | 5400 | 55 | 37 | 26 | 45 | 3 | 5.5 | 30 | 0.8 | 4.5 | 0.44 | 3.5 | |
20 | 146 | 2000 | 3600 | 68 | 50 | 35 | 58 | 4 | 5.5 | 34 | 0.8 | 5.5 | 0.7 | 8.4 | |
25 | 285 | 1700 | 2600 | 90 | 68 | 45 | 78 | 6 | 5.5 | 37 | 1 | 6.5 | 1.3 | 14 | |
30 | 500 | 1500 | 2100 | 100 | 75 | 50 | 87 | 6 | 6.6 | 44 | 1 | 6.5 | 2 | 23 | |
35 | 720 | 1300 | 1950 | 110 | 80 | 55 | 96 | 6 | 6.6 | 48 | 1 | 6.5 | 2.6 | 60 | |
40 | 1030 | 1200 | 1700 | 125 | 90 | 60 | 108 | 6 | 9 | 56 | 1.5 | 7.6 | 3.9 | 72 | |
45 | 1125 | 1050 | 1500 | 130 | 95 | 65 | 112 | 8 | 9 | 56 | 1.5 | 7.6 | 4 | 140 | |
50 | 2150 | 950 | 1300 | 150 | 110 | 75 | 132 | 8 | 9 | 63 | 1.5 | 7.6 | 6 | 180 | |
55 | 2675 | 850 | 1200 | 160 | 115 | 82 | 138 | 8 | 11 | 67 | 2 | 7.6 | 7.2 | 190 | |
60 | 3500 | 800 | 1100 | 170 | 125 | 90 | 150 | 10 | 11 | 78 | 2 | 7.6 | 9.2 | 240 | |
70 | 5813 | 650 | 900 | 190 | 140 | 100 | 165 | 10 | 11 | 95 | 2.5 | 7.6 | 11.8 | 320 | |

Customized type is also available to produce , pls feel free to contact for negotiation .
Understanding the working principle of AA one-way bearings is fundamental to appreciating their significance in mechanical systems.
Engagement Phase:
When torque is applied in the designated direction, the sprags or rollers engage.
This engagement allows for smooth and controlled rotation of the inner race with respect to the outer race.
Disengagement Phase:
When force is applied in the opposite direction, the sprags or rollers disengage.
This prevents backward movement, maintaining the unidirectional nature of the rotation.
The versatility of AA one-way bearings is showcased through their widespread applications across various industries.
In the automotive sector, AA one-way bearings find applications in:
Starter Motors :
Enabling the transmission of rotational motion to the engine's crankshaft.
Preventing the engine from forcing the starter motor to spin, ensuring smooth engine starts.
In industrial settings, these bearings play a vital role in:
Conveyor Systems:
Preventing reverse motion in conveyor systems, ensuring controlled movement.
Packaging Machinery:
Maintaining controlled motion to avoid damage or malfunction caused by accidental reverse motion.
In the realm of sports and recreation, AA one-way bearings are commonly found in:
Bicycles:
Powering the freewheel mechanism, allowing cyclists to coast without pedaling while ensuring power transmission when pedaling forward.
In modern robotics and automation, these bearings contribute to:
Precision Robotics:
Enabling precise and controlled movement in robotic arms and mechanisms
Limited Reverse Load:
AA one-way bearings are not designed to handle substantial reverse loads.
Maintenance Requirements:
Regular lubrication and proper handling are essential for maintaining optimal performance and longevity.
To ensure the longevity of AA one-way bearings, proper lubrication is paramount. Regular application of high-quality lubricant helps reduce friction and wear, contributing to the efficiency of the mechanism.
Appropriate handling and storage practices contribute significantly to the extended lifespan of AA one-way bearings. Avoiding excessive impact and keeping the bearing free from contaminants are essential precautions.
Can AA one way bearings be used in high-speed applications?
Yes, AA one-way bearings are designed to handle high-speed applications with precision.
Are you Trading Company or Manufacturer?
SUMA is Manufacturer with one-stop service , Production history over 20 years, exporting experience up to 10 years
Can i have AA One-Way Bearings Samples to check quality first
You are encourged to get one way bearing sample for quality check .
How soon you can make the shipment of my AA One Way Bearing order ?
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.
Is there guarantee of One Way Bearings purchased?
We provide 1 year warranty for all backstop clutch we sell.