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NF
SUMA
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Features of NF Freewheel Clutch Bearing:
The Type NF One Way clutch bearing is a roller-type freewheel that is not bearing-supported. Separate bearings are needed to handle axial and radial loads, and the installation must also provide lubrication and sealing.
2. The standard lubrication used is oil. The nominal outside diameter matches that of a standard ball bearing. Typically, this type is installed next to a bearing with the same housing tolerances.
3. The inner race is keyed to the shaft, while the outer race has a positive n6 tolerance for a press fit in an H7 housing. Additional side notches ensure positive torque transmission.
4. When the housing tolerance is K6, the notches are unnecessary, but the housing must be strong enough to resist expansion after assembly.
Detailed Parameter of NF series for reference
NF Freewheel Clutch Bearing.pdf
OEM is also available
Type | Size | Overrunning Speeds | DIMENSIONS | Weight | |||||||||
NF
| dH7 (mm) | TKN 1 (Nm ) | Nimax2) (min-1) | Namax3) (min-1) | Dn6 (mm) | D5 (mm) | D6 (mm) | L (mm) | t (mm) | bH11 (mm) | r (mm) | r1 (mm) | (kg) |
8 | 20 | 5000 | 6000 | 37 | 30 | 20 | 20 | 3 | 6 | 1.0 | 1.5 | 0.1 | |
12 | 20 | 5000 | 6000 | 37 | 30 | 20 | 20 | 3 | 6 | 1.0 | 1.5 | 0.1 | |
15 | 78 | 4500 | 5400 | 47 | 37 | 26 | 30 | 3.5 | 7 | 1.5 | 1.5 | 0.3 | |
20 | 188 | 3000 | 3600 | 62 | 52 | 37 | 36 | 3.5 | 8 | 2.0 | 2.0 | 0.6 | |
25 | 250 | 2200 | 2600 | 80 | 68 | 49 | 40 | 4 | 9 | 2.5 | 2.0 | 1.1 | |
30 | 500 | 1800 | 2100 | 90 | 75 | 52.5 | 48 | 5 | 12 | 2.5 | 2.0 | 1.6 | |
35 | 663 | 1600 | 1950 | 100 | 80 | 58 | 53 | 6 | 13 | 2.5 | 2.5 | 2.3 | |
40 | 100 | 1250 | 1700 | 110 | 90 | 62 | 63 | 7 | 15 | 3.0 | 2.5 | 3.1 | |
45 | 100 | 1100 | 1500 | 120 | 95 | 69 | 63 | 7 | 16 | 3.0 | 2.5 | 3.7 | |
50 | 2375 | 850 | 1300 | 130 | 110 | 82 | 80 | 8.5 | 17 | 3.5 | 3.0 | 5.4 | |
55 | 2500 | 800 | 1200 | 140 | 115 | 83 | 80 | 9 | 18 | 3.5 | 3.0 | 6.1 | |
60 | 4250 | 700 | 1100 | 150 | 125 | 93.5 | 95 | 9 | 18 | 3.5 | 3.5 | 8.5 | |
70 | 5875 | 620 | 900 | 170 | 140 | 106 | 110 | 9 | 20 | 3.5 | 3.5 | 13.0 | |
80 | 10000 | 550 | 800 | 190 | 160 | 122 | 125 | 9 | 20 | 4.0 | 3.5 | 18.0 | |
90 | 17250 | 480 | 700 | 215 | 180 | 133 | 140 | 11.5 | 24 | 4.0 | 4.0 | 25.3 | |
100 | 19625 | 400 | 600 | 260 | 210 | 157 | 150 | 14.5 | 28 | 4.0 | 4.0 | 42.1 | |
130 | 34750 | 300 | 480 | 300 | 240 | 188 | 180 | 17 | 32 | 5.0 | 5.0 | 65.0 | |
150 | 44375 | 250 | 400 | 320 | 260 | 205 | 180 | 17 | 32 | 5.0 | 5.0 | 95.0 | |
The versatility of NF Freewheel Clutches finds expression in a wide array of applications across diverse industries.
From automotive systems to industrial machinery, like printing machinery , packageing machinery , etc . the clutch's unidirectional functionality makes it an indispensable part of numerous setups.
To affix pulleys, gears, or sprockets to the clutches, place hubs (with an f7 tolerance per ISO R773) along the inner surface of the outer race and secure the bolts (high tension) into the threaded holes on the clutch end.
Installing the NF Freewheel Clutch correctly is imperative for optimal performance and longevity. The installation process involves several key steps, each requiring careful attention to detail.
Before installation, a thorough inspection of the NF Freewheel Clutch and its components is essential. This includes checking for any damage, ensuring proper lubrication, and verifying that all parts are in good condition. Any discrepancies discovered during this phase should be addressed promptly.
Ensuring secure fastening of the NF Freewheel Clutch to the shaft or mounting surface is vital. Incorrect or loose fastening can lead to misalignment, reducing the clutch's effectiveness and potentially causing damage to both the clutch and the machinery.
Utilize solely a parallel key for securing the clutch to the shaft, avoiding the use of a tapered key.
When installing the clutch onto the shaft, exert pressure on the inner race exclusively, avoiding any pressure on the outer race. Refer to the illustration on the right for guidance.
For vertical installations, kindly seek guidance from SUMA TEAM .
Select a key that adheres to the specifications outlined in ISO R773 (DIN 6885.1).
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history of one way freewheel clutch bearing over 20 years, exporting experience up to 10 years .
2. Can i have Samples of freewheel clutch bearing to check quality first ?
It is okay to get NF Freewheel clutch bearing sample for quality check .
3. How can i choose the correct NF Freewheel clutch 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 freewheel clutch bearings you are supplied ?
Standard Material : GCr15 Bearing Steel
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.
6. Is there guarantee of freewheel clutch bearing items purchased ?
We produce 1 year warranty for all backstop clutch we sell.
Features of NF Freewheel Clutch Bearing:
The Type NF One Way clutch bearing is a roller-type freewheel that is not bearing-supported. Separate bearings are needed to handle axial and radial loads, and the installation must also provide lubrication and sealing.
2. The standard lubrication used is oil. The nominal outside diameter matches that of a standard ball bearing. Typically, this type is installed next to a bearing with the same housing tolerances.
3. The inner race is keyed to the shaft, while the outer race has a positive n6 tolerance for a press fit in an H7 housing. Additional side notches ensure positive torque transmission.
4. When the housing tolerance is K6, the notches are unnecessary, but the housing must be strong enough to resist expansion after assembly.
Detailed Parameter of NF series for reference
NF Freewheel Clutch Bearing.pdf
OEM is also available
Type | Size | Overrunning Speeds | DIMENSIONS | Weight | |||||||||
NF
| dH7 (mm) | TKN 1 (Nm ) | Nimax2) (min-1) | Namax3) (min-1) | Dn6 (mm) | D5 (mm) | D6 (mm) | L (mm) | t (mm) | bH11 (mm) | r (mm) | r1 (mm) | (kg) |
8 | 20 | 5000 | 6000 | 37 | 30 | 20 | 20 | 3 | 6 | 1.0 | 1.5 | 0.1 | |
12 | 20 | 5000 | 6000 | 37 | 30 | 20 | 20 | 3 | 6 | 1.0 | 1.5 | 0.1 | |
15 | 78 | 4500 | 5400 | 47 | 37 | 26 | 30 | 3.5 | 7 | 1.5 | 1.5 | 0.3 | |
20 | 188 | 3000 | 3600 | 62 | 52 | 37 | 36 | 3.5 | 8 | 2.0 | 2.0 | 0.6 | |
25 | 250 | 2200 | 2600 | 80 | 68 | 49 | 40 | 4 | 9 | 2.5 | 2.0 | 1.1 | |
30 | 500 | 1800 | 2100 | 90 | 75 | 52.5 | 48 | 5 | 12 | 2.5 | 2.0 | 1.6 | |
35 | 663 | 1600 | 1950 | 100 | 80 | 58 | 53 | 6 | 13 | 2.5 | 2.5 | 2.3 | |
40 | 100 | 1250 | 1700 | 110 | 90 | 62 | 63 | 7 | 15 | 3.0 | 2.5 | 3.1 | |
45 | 100 | 1100 | 1500 | 120 | 95 | 69 | 63 | 7 | 16 | 3.0 | 2.5 | 3.7 | |
50 | 2375 | 850 | 1300 | 130 | 110 | 82 | 80 | 8.5 | 17 | 3.5 | 3.0 | 5.4 | |
55 | 2500 | 800 | 1200 | 140 | 115 | 83 | 80 | 9 | 18 | 3.5 | 3.0 | 6.1 | |
60 | 4250 | 700 | 1100 | 150 | 125 | 93.5 | 95 | 9 | 18 | 3.5 | 3.5 | 8.5 | |
70 | 5875 | 620 | 900 | 170 | 140 | 106 | 110 | 9 | 20 | 3.5 | 3.5 | 13.0 | |
80 | 10000 | 550 | 800 | 190 | 160 | 122 | 125 | 9 | 20 | 4.0 | 3.5 | 18.0 | |
90 | 17250 | 480 | 700 | 215 | 180 | 133 | 140 | 11.5 | 24 | 4.0 | 4.0 | 25.3 | |
100 | 19625 | 400 | 600 | 260 | 210 | 157 | 150 | 14.5 | 28 | 4.0 | 4.0 | 42.1 | |
130 | 34750 | 300 | 480 | 300 | 240 | 188 | 180 | 17 | 32 | 5.0 | 5.0 | 65.0 | |
150 | 44375 | 250 | 400 | 320 | 260 | 205 | 180 | 17 | 32 | 5.0 | 5.0 | 95.0 | |
The versatility of NF Freewheel Clutches finds expression in a wide array of applications across diverse industries.
From automotive systems to industrial machinery, like printing machinery , packageing machinery , etc . the clutch's unidirectional functionality makes it an indispensable part of numerous setups.
To affix pulleys, gears, or sprockets to the clutches, place hubs (with an f7 tolerance per ISO R773) along the inner surface of the outer race and secure the bolts (high tension) into the threaded holes on the clutch end.
Installing the NF Freewheel Clutch correctly is imperative for optimal performance and longevity. The installation process involves several key steps, each requiring careful attention to detail.
Before installation, a thorough inspection of the NF Freewheel Clutch and its components is essential. This includes checking for any damage, ensuring proper lubrication, and verifying that all parts are in good condition. Any discrepancies discovered during this phase should be addressed promptly.
Ensuring secure fastening of the NF Freewheel Clutch to the shaft or mounting surface is vital. Incorrect or loose fastening can lead to misalignment, reducing the clutch's effectiveness and potentially causing damage to both the clutch and the machinery.
Utilize solely a parallel key for securing the clutch to the shaft, avoiding the use of a tapered key.
When installing the clutch onto the shaft, exert pressure on the inner race exclusively, avoiding any pressure on the outer race. Refer to the illustration on the right for guidance.
For vertical installations, kindly seek guidance from SUMA TEAM .
Select a key that adheres to the specifications outlined in ISO R773 (DIN 6885.1).
1. Are you Trading Company or Manufacturer ?
SUMA is Manufacturer with one-stop service , Production history of one way freewheel clutch bearing over 20 years, exporting experience up to 10 years .
2. Can i have Samples of freewheel clutch bearing to check quality first ?
It is okay to get NF Freewheel clutch bearing sample for quality check .
3. How can i choose the correct NF Freewheel clutch 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 freewheel clutch bearings you are supplied ?
Standard Material : GCr15 Bearing Steel
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.
6. Is there guarantee of freewheel clutch bearing items purchased ?
We produce 1 year warranty for all backstop clutch we sell.
