China Standard Short Pitch Precision Roller Chains and Bush Chains 28b Series Sprockets a hub sprocket

Product Description

SPROCKET  1” 3/4 X 1”1/4  28B SERIES SPROCKETS
 

For Chain Acc.to DIN8187 ISO/R 606
Tooth Radius  r3 44.0mm
Radius Width C 5.0mm
Tooth Width b1 29.4mm
Tooth Width B1 28.8mm
Tooth Width B2 88.4mm
Tooth Width B3 148mm
32B SERIES ROLLER CHAINS  
Pitch 44.45 mm
Internal Width 30.99 mm
Roller Diameter 27.94 mm

Z de dp SIMPLEX DUPLEX TRIPLEX
dm D1 A dm D2 A dm D3 A
8 132.0  116.15  74 25 70 74 25 120 74 30 180
9 148.4  129.96  88 25 70 88 25 120 88 30 180
10 162.3  143.85  100 25 70 100 25 120 100 30 180
11 176.3  157.77  112 25 70 112 25 120 112 30 180
12 189.5  171.74  125 25 70 125 25 120 125 30 180
13 204.2  185.75  *125 25 70 *125 25 120 *125 30 180
14 218.2  199.76  *125 25 70 *125 25 120 *125 30 180
15 232.3  213.79  *125 25 70 *125 25 120 *125 30 180
16 246.3  227.84  *160 30 75 *160 30 120 *160 30 180
17 260.3  241.91  *160 30 75 *160 30 120 *160 30 180
18 274.0  255.89  *160 30 75 *160 30 120 *160 30 180
19 289.0  270.06  *160 30 75 *180 30 120 *180 30 180
20 303.0  284.15  *160 30 75 *180 30 120 *180 30 180
21 317.0  298.24  *160 30 75 *180 30 120 *180 30 180
22 331.0  312.34  *160 30 75 *180 30 120 *180 30 180
23 345.0  326.44  *160 30 75 *180 30 120 *180 30 180
24 359.0  340.55  *160 30 75 *180 30 120 *180 30 180
25 373.0  354.66  *160 30 75 *180 30 120 *180 40 180
26 387.0  368.77  *160 30 75 *180 30 120 *180 40 180
27 401.4  382.88  *160 30 75 *180 30 120 *180 40 180
28 416.0  397.00  *160 30 75 *180 30 120 *180 40 180
29 430.0  411.12  *160 30 75 *180 30 120 *180 40 180
30 444.0  425.24  *160 30 75 *180 30 120 *180 40 180
31 458.0  439.37  *180 30 75 *180 30 120 *180 40 180
32 472.0  453.49  *180 30 75 *180 30 120 *180 40 180
33 486.0  467.62  *180 30 75 *180 30 120 *180 40 180
34 500.0  481.75  *180 30 75 *180 30 120 *180 40 180
35 514.0  495.88  *180 30 75 *200 30 130 *200 40 180
36 529.0  510.01  *180 30 75 *200 30 120 *180 40 180
37 543.0  524.14  *180 30 75 *200 30 120 *180 40 180
38 557.0  538.27  *180 30 75 *200 30 120 *200 40 180
39 571.0  552.40  *180 30 75 *200 30 120 *200 40 180
40 585.0  566.54  *180 30 75 *200 30 120 *200 40 180
45 656.0  637.22  *180 30 90 *200 30 120 *200 40 180
50 726.0  707.91  *180 30 90 *200 30 120 *200 40 180
57 825.0  806.89  *180 30 100 *200 30 120 *200 40 180
60 869.0  849.32  *180 30 100 *200 30 120 *200 40 190
76 1095.0  1075.60  *180 30 100 *200 30 120 *200 40 190

Notice: *welding hub

BASIC INFO.
 

Product name  DIN ISO Standard Sprocket for Roller Chain
Materials Available  1. Stainless Steel: SS304, SS316, etc
2. Alloy Steel: C45, 45Mn, 42CrMo, 20CrMo, etc
3. OEM according to your request
Surface Treatment Heat treatment, Quenching treatment, High frequency normalizing treatment, Polishing, Electrophoresis paint processing, Anodic oxidation treatment, etc
Characteristic Fire Resistant, Oil Resistant, Heat Resistant, CZPT resistance, Oxidative resistance, Corrosion resistance, etc
Design criterion ISO DIN ANSI & Customer Drawings
Size Customer Drawings & ISO standard 
Application Industrial transmission equipment
Package Wooden Case / Container and pallet, or made-to-order
Certificate ISO9001: 2008 
Advantage Quality first, Service first, Competitive price, Fast delivery
Delivery Time 20 days for samples. 45 days for official order.

INSTALLATION AND USING

The chain spocket, as a drive or deflection for chains, has pockets to hold the chain links with a D-profile cross section with flat side surfaces  parallel to the centre plane of the chain links, and outer surfaces at right angles to the chain link centre plane. The chain links are pressed firmly against the outer surfaces and each of the side surfaces by the angled laying surfaces at the base of the pockets, and also the support surfaces of the wheel body together with the end sides of the webs formed by the leading and trailing walls of the pocket.

NOTICE

When fitting new chainwheels it is very important that a new chain is fitted at the same time, and vice versa. Using an old chain with new sprockets, or a new chain with old sprockets will cause rapid wear.

It is important if you are installing the chainwheels yourself to have the factory service manual specific to your model. Our chainwheels are made to be a direct replacement for your OEM chainwheels and as such, the installation should be performed according to your models service manual.

During use a chain will stretch (i.e. the pins will wear causing extension of the chain). Using a chain which has been stretched more than the above maximum allowance causes the chain to ride up the teeth of the sprocket. This causes damage to the tips of the chainwheels teeth, as the force transmitted by the chain is transmitted entirely through the top of the tooth, rather than the whole tooth. This results in severe wearing of the chainwheel.
 

FOR CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CZPT Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

Standard Or Nonstandard: Standard
Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Motor, Electric Cars, Motorcycle, Machinery,
Hardness: Hardened Tooth Surface
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: 1045, Stainless Steel, Q235, Brass
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

sprocket

How to Identify a Sprocket

When choosing a sprocket, you have several options. There are several types, each with unique features. In this article, we’ll discuss how to identify sprockets, and how to replace worn or damaged sprockets.

buy sprockets

When building a bicycle, sprockets are an important part of the drivetrain. Unfortunately, they’re hard to find outside of places like CZPT. Fortunately, there are some easy ways to find the right sprocket for your bike.
The first thing to consider is what kind of sprocket you need. Choosing the wrong sprocket can damage your equipment or cause it to fail prematurely. While sprockets come in a variety of sizes, there are some key features that can help you find the right one.
There are two basic types of sprockets. You can choose one made of steel or aluminum, or a combination of both. Most sprockets are made of steel, but there are also new aluminum sprockets that are similar to steel and last as long as steel. No matter which material you choose, it’s important to choose a reputable manufacturer with regular maintenance.
Buying sprockets that match your chain is another way to ensure proper installation. The chain goes through the sprockets thousands of times per minute, so the teeth eventually wear out. Poorly maintained sprockets can also cause “hook” teeth, which will cause your chain to stretch to the point where you can no longer adjust it.

Identify sprockets

One of the most common bicycle parts is the sprocket, which can be identified by its width and number of teeth. A single sprocket has one tooth along its circumference, while a double sprocket has two rows of teeth. Sprockets are also known by different names, including single, double, triple, and quadruple sprockets.
Roller sprockets are another type of sprocket. It runs along a chain of rollers connected by pins. It fits into the gap between the rollers in the chain to transfer kinetic energy. There are two basic styles of roller sprockets: single pitch and double pitch. Single-pitch sprockets are small and fit snugly against the equipment, while double-pitch sprockets are larger and require more thickness to support the weight.
Checking a sprocket is easy if you know how to count teeth. A simple caliper will allow you to easily find sprockets with worn teeth. Calipers also allow you to measure the hole of the sprocket, which is the inside diameter of the sprocket.
Another way to tell if a sprocket is worn is to visually inspect the sprocket. Worn sprockets can cause the chain to bounce, putting more pressure on the bearings and accelerating wear. It is also important to check the alignment of the sprockets. If it’s off center, it probably means the chain needs to be replaced.
sprocket

Replace sprocket

If you want to maintain your bike, it’s a good idea to replace your chain and sprockets regularly. If you don’t, you may have a problem that will only get worse. Worn chains can also make noise, so it’s a good idea to check them regularly. Also, you should lubricate and tighten them regularly, especially when they reach their maximum mileage.
First, you need to determine the size of the chain. Usually, you’ll find it in the manual. Common sizes are 520, 525, and 530. The first number refers to the pitch of the chain, which is the distance between the rivets, while the second number refers to the width of the sprocket. For example, a 20-tooth sprocket is two and a half inches wide.
Replacing a sprocket is a relatively simple process. Be sure to clean the bike and apply wheel bearing grease before tackling the task. Next, remove the old chain from the rear wheel. Some bikes may have clevises or side panels that need to be removed. A flat-blade screwdriver works well for this problem. You can also use the Broken Links tool to remove split links.
You can also install new sprockets on your bike. After removing the old one, be sure to follow the manufacturer’s instructions for chain and sprocket size. You should also tighten the sprocket nut to the manufacturer’s torque setting. Once you’ve done this, be sure to check the chain tension to make sure it’s not too loose or too tight.

Replace worn chains

To prevent damage to the chain, the chain must be replaced regularly. It’s prone to wear and tear, but you can extend the life of your bike’s chain with a few simple steps. One of the steps is to lift the rear wheel of the bike so you can run the new chain through the rear derailleur. This will make the task easier because your bike won’t be lying on the floor. If you don’t have a bike rack, you can use cinder blocks, wood, or boxes to support your bike rack.
The most obvious sign is yIf your chain bounces under load, our chainrings need to be replaced. Using a chain gauge will let you know when you need a new chain. Chain gauges usually consist of two sides and are used to measure the amount of wear on the chain under a given load. You can check the gauge by placing it on the chain and making sure it sinks into the chain.
First, you need to delete the old chain. Some older chains use uniform pins that you can use to replace them. Make sure to get a chain that is the same length as the old one. Also, pay attention to the type of drivetrain your bike has. For example, if it has a rear derailleur, you will need a chain that matches the same drivetrain.

Check the sprocket for rust

One of the best ways to check your bike for rust is to look for surface rust. This is the first sign that the metal is starting to oxidize. Using a steel brush to remove surface rust is a good idea, but be sure to wear safety glasses. You can also clean the sprockets with WD-40 or kerosene.
Another indicator that a sprocket needs to be replaced is excessive wear. This may be caused by foreign objects conveyed by the chain. It may also be necessary to center the chain and drive sprocket and install guide rollers. Other signs of sprocket rust include excessive vibration due to improperly machined axle holes or a bent or bent chain.
You should also look for any kinks in the chain. If so, you may need to replace the chain. Also, look for any rust spots and excess grease. Also, you should check the sprockets to make sure they are properly aligned.
Besides rust, another sign of rust is the chain jumping out of the sprocket. This can cause the chain to jam and cause your bike to slip. This situation is also dangerous for you and other drivers.
sprocket

Replace worn sprockets

You can repair your bike’s gears by replacing the sprockets. You should always check the chain for any signs of wear. In the case of a worn sprocket, you should check the teeth, which are usually tall and hooked.
If the sprocket is curled, skewed, or uneven, the sprocket is worn and needs to be replaced. If the sprockets are not replaced, they will wear out the chain very quickly. Chains should be replaced as soon as they show signs of excessive wear.
To replace a worn sprocket, you must first remove the old rear sprocket. To do this, loosen the bolts that hold the sprocket in place. You should also clean the hub surface with steel wool to reduce corrosion and wear.
Worn sprockets have worn teeth that keep the roller chain from slipping. This can cause the chain to climb up the sprockets and make a lot of noise. In addition to noise, chains can stick to worn sprockets and damage sprockets and chain. Don’t wait until the chain is out of control to fix it.
After the sprocket is removed, the rear sprocket and drive sprocket can be replaced. It is important to check the alignment of the sprockets, as incorrect alignment can cause premature chain wear. Proper alignment will distribute the load evenly across the entire width of the chain, extending the life of the chain. You can check the sprocket with a ruler or laser sight tool.

China Standard Short Pitch Precision Roller Chains and Bush Chains 28b Series Sprockets     a hub sprocketChina Standard Short Pitch Precision Roller Chains and Bush Chains 28b Series Sprockets     a hub sprocket
editor by CX 2023-05-31

Chain Sprocket

As one of the leading chain sprocket manufacturers, suppliers, and exporters of mechanical products, We offer chain sprockets and many other products.

Please contact us for details.

Manufacturer supplier exporter of chain sprockets.

Recent Posts