China OEM Japanese Kana Nk Standard Nk40b Sprockets B Type

Product Description

Product Description

 

Sprocket No. Outside Dia.
Do
Pitch Dia.
Dp
Bore Dia. Hub Weight
(kg)
 
Type Z Stock Bore  Min. Max BD BL  
NK40B 9 42 37.13 8.5 10.5 16 *28 22 0.11  
10 46 41.10 9.5 11.5 18 *32 22 0.14  
11 51 45.08 10.5 12.5 20 *36 22 0.19  
12 55 49.07 11.5 13.5 22 *40 22 0.22  
13 59 53.07 13.5 15.5 20 37 22 0.23  
14 63 57.07 13.5 15.5 25 42 22 0.28  
15 67 61.08 13.5 15.5 28 46 22 0.34  
16 71 65.10 13.5 15.5 30 50 22 0.40  
17 76 69.12 13.5 15.5 32 54 22 0.46  
18 80 73.14 13.5 15.5 35 57 22 0.51  
19 84 77.16 13.5 15.5 40 62 22 0.59  
20 88 81.18 14 16 45 67 25 0.76  
21 92 85.21 14 16 48 71 25 0.85  
22 96 89.24 14 16 51 75 25 0.95  
23 100 93.27 14 16 51 77 25 1.00  
24 104 97.30 14 16 42 63 25 0.84  
25 108 101.33 14 16 42 63 25 0.88  
26 112 105.36 14 16 42 63 25 0.92  
27 116 109.40 14 16 42 63 25 0.96  
28 120 113.43 14 16 42 63 25 1.00  
29 124 117.46 14 16 42 63 25 1.00  
30 128 121.50 14 16 42 63 d 1.00  
31 133 125.53 14 16 45 68 28 1.20  
32 137 129.57 14 16 45 68 28 1.30  
33 141 133.61 14 16 45 68 28 1.30  
34 145 137.64 14 16 45 68 28 1.30  
35 149 141.68 14 16 45 68 28 1.40  
36 153 145.72 16 18 45 68 28 1.50  
37 157 149.75 16 18 45 68 28 1.55  
38 161 153.79 16 18 45 68 28 1.60  
39 165 157.83 16 18 45 68 28 1.65  
40 169 161.87 16 18 45 68 28 1.70  
41 173 165.91 16 18 48 73 32 2.00  
42 177 169.95 16 18 48 73 32 2.05  
43 181 173.98 16 18 48 73 32 2.10  
44 185 178.02 16 18 48 73 32 2.17  
45 189 182.06 16 18 48 73 32 2.25  
46 193 186.10 16 18 48 73 32 2.30  
47 197 190.14 16 18 48 73 32 2.37  
48 201 194.18 16 18 48 73 32 2.45  
49 205 198.22 16 18 48 73 32 2.51  
50 209 202.26 16 18 48 73 32 2.60  
51 214 206.30 16 18 48 73 32 2.65  
52 218 210.34 16 18 48 73 32 2.72  
53 222 214.38 16 18 48 73 32 2.80  
54 226 218.42 16 18 48 73 32 2.90  
55 230 222.46 16 18 48 73 32 2.96  
56 234 226.50 16 18 48 73 32 3.04  
60 250 242.66 16 18 48 73 32 3.40  
64 266 258.83 16 18 48 73 32 3.73  
65 270 262.87 16 18 55 83 32 4.10  

Company Profile

 

Services we can provide

1. Produce strictly following standard dimension
2. Material: 1045 Steel / Alloy Steel / Stainless Steel 304 & 316 
3. Standard: ANSI, DIN, JINS, ISO, KANA, Standard America, or customer’s drawing
4. Pilot bore, finished bore, taper bore, and special bore. 
5. Bright surface / high precision / Blacking /Electrophoretic-Coated
6. Advanced heat treatment and surface treatment craft
7. Best quality and competitive price. 
8. Welcome OEM / ODM 
9. Processing Equipment: Hobbing machine, Slotting machine, CNC lathes, and other equipment.
10. Sprocket Models: Contains special sprocket according to customer’s drawings, standard sprocket (American standard and metric).
 

Customization process
1.Provide documentation:CAD, DWG, DXF, PDF,3D model ,STEP, IGS, PRT

2.Quote:We will give you the best price within 24 hours

3.Place an order:Confirm the cooperation details and CZPT the contract, and provide the labeling service

4.Processing and customization:Short delivery time

Related products:

Factory:
As a professional China sprocket manufacturer and professional supplier, we ensure the quality of every sprocket. All items are checked and tested thoroughly during every working procedure and after the product is finally manufactured to ensure that the best quality product goes out in the market.

 

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Rolling Body: Roller Bearings
The Number of Rows: Double
Outer Dimension: Small and Medium-Sized (60-115mm)
Spherical: Aligning Bearings
Load Direction: Axial Bearing
Separated: Unseparated

small sprocket

How do I calculate the gear ratio when using a small sprocket in a system?

Calculating the gear ratio when using a small sprocket in a system is essential for understanding the relationship between the driver and driven sprockets’ rotational speeds. The gear ratio is a measure of the speed or torque multiplication achieved by the sprocket system. To calculate the gear ratio, you need to know the number of teeth on both the small sprocket (driver) and the large sprocket (driven).

The gear ratio (GR) is determined using the formula:

GR = (Number of Teeth on Driven Sprocket) / (Number of Teeth on Driver Sprocket)

For example, suppose the small sprocket (driver) has 10 teeth, and the large sprocket (driven) has 30 teeth. The gear ratio would be:

GR = 30 / 10 = 3

In this case, the gear ratio is 3, which means the driven sprocket rotates three times for every one rotation of the driver sprocket.

The gear ratio is essential for understanding how the sprocket system will affect speed and torque. A higher gear ratio (e.g., 4 or 5) indicates that the driven sprocket will rotate more times than the driver sprocket, resulting in higher speed but lower torque at the driven sprocket. Conversely, a lower gear ratio (e.g., 2 or 3) indicates higher torque but lower speed at the driven sprocket.

Keep in mind that the gear ratio only considers the number of teeth on the sprockets and does not account for frictional losses or other factors in the system. However, it serves as a fundamental parameter in sprocket system design and analysis.

small sprocket

How do I properly install and align small sprockets for optimal performance?

Proper installation and alignment of small sprockets are crucial for ensuring optimal performance and longevity of the sprocket system. Here are the steps to follow when installing and aligning small sprockets:

  1. Clean the Components: Before installation, ensure that the sprockets, shafts, and surrounding areas are clean and free from dirt, debris, and old lubricants. Cleaning the components will help in achieving a more accurate alignment.
  2. Check for Damage: Inspect the sprockets for any signs of damage, wear, or deformation. Do not install a sprocket that is damaged, as it can lead to premature failure.
  3. Identify Keyway or Set Screw: Determine the type of mounting method required for your small sprocket. Some sprockets may have a keyway for a key that fits into a keyslot on the shaft, while others use set screws to secure the sprocket to the shaft.
  4. Mount the Sprocket: Carefully slide the sprocket onto the shaft, ensuring that it fits snugly. If the sprocket uses a keyway, insert the key into the keyslot and then slide the sprocket on. For set screws, position the sprocket at the desired location on the shaft.
  5. Align Multiple Sprockets: In systems with multiple sprockets and a chain, it is essential to align all the sprockets along the same plane. Use a straightedge or laser alignment tool to check the alignment and adjust as necessary.
  6. Tighten Set Screws: If your sprocket uses set screws, tighten them evenly to secure the sprocket in place. Be cautious not to over-tighten the set screws, as it can damage the sprocket or the shaft.
  7. Use a Torque Wrench: If specified by the manufacturer, use a torque wrench to apply the correct amount of torque to the set screws or other mounting fasteners. This helps prevent over-tightening and ensures proper attachment.
  8. Check for Runout: After installation, check the sprocket for runout, which is the amount of wobble or eccentricity. Excessive runout can cause chain misalignment and premature wear. If there is significant runout, reposition the sprocket and re-check.
  9. Lubrication: Apply the appropriate lubricant to the sprocket and chain (if applicable) as per the manufacturer’s recommendations. Proper lubrication reduces friction, wear, and noise.
  10. Perform a Function Test: Rotate the sprocket manually to ensure it moves freely and smoothly. Verify that the chain engagement is proper and that there is no binding or tight spots in the rotation.
  11. Regular Maintenance: Periodically inspect the sprocket system for wear, misalignment, or damage. Address any issues promptly to avoid further problems.

Proper installation and alignment of small sprockets are essential for optimal performance, reduced wear, and increased reliability in mechanical systems.

small sprocket

How does a small sprocket differ from larger sprockets in terms of functionality?

In mechanical systems, small sprockets and larger sprockets differ in several aspects of functionality due to their distinct sizes and characteristics. Here’s a detailed explanation of the differences between small and larger sprockets:

1. Size:

The most obvious difference is the size of the sprockets. Small sprockets have a relatively smaller diameter, whereas larger sprockets have a larger diameter. The size directly impacts their function in the system.

2. Speed and Torque:

Small sprockets, when driving a larger sprocket in a chain drive system, result in speed reduction while increasing torque. This is advantageous when you need to transfer power at a slower speed but with greater force. On the other hand, larger sprockets lead to speed increase and lower torque output, suitable for applications requiring higher rotational speed.

3. Gear Ratio:

Small sprockets provide higher gear ratios when paired with larger sprockets and vice versa. The gear ratio defines the relationship between the number of teeth on the driving sprocket (small sprocket) and the driven sprocket (larger sprocket) and determines the speed and torque characteristics of the system.

4. Power Transmission:

Both small and larger sprockets are vital for power transmission in chain drive systems. However, the choice between the two depends on the specific requirements of the mechanical system. Small sprockets are more suitable for applications where high torque and slower speeds are needed, while larger sprockets are preferable for applications demanding higher speeds and lower torque.

5. Space and Weight:

Small sprockets offer a compact and lightweight solution for power transmission, making them ideal for applications with limited space and weight constraints. Larger sprockets, though bulkier, may be necessary in systems where higher speeds are required, and space is less of a concern.

6. Applications:

Small sprockets find common use in bicycles, motorcycles, and other machinery that require speed reduction and higher torque, while larger sprockets are frequently employed in industrial machinery, heavy equipment, and automotive applications where higher speeds are necessary.

Ultimately, the choice between small and larger sprockets depends on the specific requirements of the mechanical system, including the desired speed, torque, gear ratio, available space, and the application’s intended purpose. Proper selection ensures optimal performance and efficient power transmission within the mechanical system.

China OEM Japanese Kana Nk Standard Nk40b Sprockets B Type  China OEM Japanese Kana Nk Standard Nk40b Sprockets B Type
editor by CX 2024-04-15

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