Type: BALL
Structure: Deep Groove, Ball bearing
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Printing Shops, Construction works , Energy & Mining
Bore Size: 40 – 40.001 mm
Model Number: BB40
Precision Rating: P1 P6
Seals Type: Open / Sealed
Number of Row: Single row
Product name: Bicycle 1 way bearing
Thickness: 22mm
Torque capacity: 260Nm
Weight: 400g
OEM: Accept
Delivery time: 1-3 Days
Package: Carton Box
Port: ZheJiang / HangZhou
Application: Printing Machinery/ Textile Machinery
Packaging Details: Carton Box / Wooden Box for bicycle 1 way bearing

BB40 Bearings GCr15 Material Ball Bearing Bicycle One Way Bearing
Feature of bicycle 1 way bearing

Product Name bicycle 1 way bearing
Model BB 40
Material GCr15
Bore diameter 40mm
Outer diameter 80mm
Torque capacity 260Nm
Operating temperature –30°C to +100°C
Shipping detail Grease is already applied before delivery
Package Each in White Small Carton box + Carton box 29*28*19cm
Delivery time Sample 1-2 days, Big Quantity 10-15days
Payment terms TT, L/C, D/P,D/A, Western Union
Port ZheJiang , HangZhou, HangZhou or as you required

All types of bicycle 1 way bearing

Model Torque Capacity Max. Overrunning Drag Torque (N·m) A B C D r Weight (N) Bearing Loads
Inner Race Outer Race BB BB-1K-K BB-2K-K BB-2GD BB-2GD 1K-K BB BB-1K-K BB-2K-K BB-2GD BB-2GD 1K-K BB BB-1K-K BB-2K-K BB-2GD BB-2GD 1K-K BB BB-1K-K BB-2K-K BB-2GD BB-2GD 1K-K Cr Cor
N·m r/min r/min N N
BB15 29 3600 2000 0.01 0.04 11 16 35 15 32.6 32.45 0.6 50 70 5950 3230
BB17 43 3500 1900 0.01 0.05 12 17 40 17 36.1 36.45 0.6 80 100 7000 3700
BB20 61 3000 1600 0.014 0.055 14 19 47 20 41.7 42.35 1 120 150 8500 4900
BB25 78 2500 1400 0.017 0.055 15 20 52 25 47.1 47.05 1 150 200 10700 6300
BB30 140 2000 1100 0.03 0.058 16 21 62 30 56.6 55.6 1 230 280 11900 7900
BB35 173 1800 1000 0.034 0.06 17 22 72 35 64 64.6 1.1 320 410 13500 9700
BB40 260 1800 900 0.04 0.08 22 27 80 40 71 71.6 1.1 400 600 14500 11700

Note: Model No. marked on the inner race is only “K” for both “1K” and “2K”. (Example: the mark “BB25-K” for both BB25-1K and BB25-2K)
Detailed Images
Installation and usage of bicycle 1 way bearing
1. BB-1K-K and BB-2GD 1K-K series have a keyway on the inner race. Keyways, except size 25 are manufactured to DIN 6885. 3, BB40-1K-K and BB40-2GD 1K-K are manufactured to DIN 6885. 1.
2. Correct interference dimensions at the shaft and the housing must be maintained to obtain maximum bearing and clutch performance.
3. BB, BB-1K and BB-2K Clutches, bearing supported and delivered with grease have dust seal protection against particles of 0.25mm and over, whereas BB-2GD and BB-2GD-1K clutches, 5mm wider than standard BB series, have special lip seals for effective protection against any dust.
4. Make sure the housing has enough strength to withstand the pressure required for the press fitting installationof the Clutch.
Instruction of Lubrication for bicycle 1 way bearing

1. Since grease is already applied before delivery, there is no need to apply grease before use.2. If the clutch is used with an oil lubricant, the oil lubrication should be applied inside the unit always.3. Do not use greases or lubricants with EP additives.

Company Information HangZhou CZPT Precision Machinery Co., Ltd(HangZhou Tianniu Clutch Factory)is a manufacturer specialized in Producing Various cam clutch, 1 way bearing, 1 way clutch, backstop clutch, overrunning clutch and other bearings with high technology.

FAQQ: How do you pack the goods?

  • Total less than 25 KG : Each in white box + 19*18*9cm box + 29*28*19CM carton box
  • Total Weight over 100KG : Carton box + Wooden Box / Wooden Pallet
  • Q: Can i get the samples from you?
    A: It is highly encouraged to ask for the samples for quality check.
    Q: Can you promise to deliver the goods in time?

  • Small items: In stock.
  • Medium Items: 10-15 Days
  • Big items: 20-25 Days
  • What is a bushing?

    What is a bushing? Basically, bushings are spherical or spherical bearings for machines with sliding or rotating shaft assemblies. Due to their excellent load-carrying capacity and anti-friction properties, these bushings are used in almost all industrial applications. This makes them useful in industries such as construction, mining, agriculture, transportation, hydropower, food processing and material handling.

    Shell information

    The demand for bushings is closely related to the global transformer market. Growing renewable energy sources and high replacement rates of aging grid infrastructure are driving the global demand for transformer bushings. Increased urbanization is another factor driving the demand for transformer bushings. Among global regions, Asia Pacific is the largest market for medium voltage transformer bushings. The following section provides a detailed analysis of the market.
    Bulk-type bushings are used for lower voltage ratings and consist of a center conductor stud or tube and an insulator housing. They are available in dry or oil filled versions, and their oil content is shared with the transformer main tank. However, the trend is slowly turning towards RIP bushings. Regardless of how different types of bushings are used, it is important to understand the difference between them.
    A recent CZPT survey indicated that bushings account for 17% of all transformer failures. Among them, 30% caused fire accidents and 10% caused explosions. This is not a small risk, especially for such important electrical components as transformers. Because casing is so important, utilities are increasingly looking to preventative maintenance. However, this requires continuous monitoring of the bushing and its insulation. There are many benefits to using online condition monitoring.
    One of the main benefits of locating and replacing faulty bushings is improved operability and safety. If you notice that your car is unstable in the corners, your bushings are worn. Anti-roll bar bushings can also be a sign of bushing damage. Do not ignore these warning signs as they can have dangerous consequences. To avoid these potential problems, make sure to get your vehicle serviced as soon as you notice any of these symptoms.
    Be sure to park your vehicle on a level surface before you start changing your car bushings. You may need to unlock the hood latch and apply the brakes before continuing. Then, open the valve cover. This will allow you to see the engine area and bushings. You should also check that the wheels are not moving and avoid placing sharp objects in the engine bay. If you have time, open the hood and if you can see the bushings, turn on the headlights.


    There are various types of bushings, each serving a different purpose. Oil-filled types are the most common and are designed for vertical installations. On the other hand, the embedded ferrule can accommodate the connection to the wire leads in the lower end of the ferrule. This feature significantly reduces the length of the sump end of the casing, but also adds additional complexity and cost.
    There are two basic types of bushings. The first is a solid pour and the second is a capacitive graded variety. Solid cast bushings are typically used for low voltage transformer windings, while gas insulated bushings are insulated with pressurized gas. Gas-insulated bushings are also used in SF6 circuit breakers. If you are in the market for a new bushing, be sure to consider its cantilever strength and design.
    Electrical bushings are an important part of various electrical equipment. They help carry high-voltage current through the enclosure and act as an insulator between a live conductor and a metal body at ground potential. Bulk-type bushings consist of a central conductive rod (usually copper or aluminum) and an insulator (silicone rubber compound or composite resin) surrounding the rod.
    Transformers require transformer bushings. The construction and materials used in the bushing play a key role in the durability and longevity of the transformer. Transformers with weak bushings can fail, causing extensive damage. Moisture or voids can cause insulation breakdown, resulting in extensive electrical damage. Appropriate materials and optimized construction can reduce electric field stress and extend the life of the bushing.
    Capacitor grading bushings are more expensive and are used in almost all high voltage systems. They use a conductive layer within the insulating layer between the center conductor and the insulator. Different manufacturers use different materials to produce these bushings. Earlier, capacitor grading bushings were made of concentric ceramic cylinders with metallized surfaces. They are also made from laminated cardboard tubes with conductive layers.


    A bushing is a support member that performs its function by acting as a washer and reducing noise and vibration. Bushings are used in valve covers and are made of corrosion-resistant materials to perform these functions. These products can be found in all types of machinery from cars to airplanes. Below are some common uses for bushings. Read on to discover more. Here are some of the most important features of the shell.
    Electrical bushings transmit electricity. They can be used in circuit breakers, transformers, power capacitors and shunt reactors. The conductors of the bushing can be built directly into the bushing or through the bushing. Both current and voltage represent electricity. The bushing must have insulation capable of withstanding the voltage and its current-carrying conductors must be capable of carrying the rated current without overheating the adjacent insulation.
    The bushing wraps around the stem, which is a relatively simple replacement part. It is a hardened part that prevents leaks and improves sealing. Plus, its low-cost replacement makes it a very easy-to-machine part. Bushings are also used in valves for guiding purposes. These two features make bushings an important part of many machines and applications. So, learn more about them.
    Copper and brass are commonly used bushing materials. They have high compressive strength and high surface pressure. This material is suitable for bearings in low speed situations and heavy duty applications. Copper and brass are the most common types of casings, and they are both made in China. They are all relatively inexpensive and are available in a variety of materials and sizes. If you are considering purchasing a casing, keep in mind that it must meet national standards.


    Whether you’re looking for a replacement bushing for your rear suspension or just need to replace the fork, you have a few different options. The two main types of bushings are coated and uncoated. If you want to save money on bushing replacements, you should consider getting a cheaper lower fork. Whether you’re replacing bushings to improve ride quality or prevent damage to your wheel loader, you’ll find a bushing replacement option that fits your budget.
    While most cars are compatible with bushings, some iconic parts from premium brands like BMW and Mercedes require special tools to replace. If you are not confident in your mechanical abilities, consider hiring a mechanic to do it. Mechanical replacement bushings typically range from $200 to $500. If you’re comfortable with mechanics and have some mechanical knowledge, you can save money by trying the job yourself. For example, control arm bushings range in price from $20 to $80. It is important to check the alignment after replacing the bushing to avoid further damage.
    Control arm bushing replacements are usually relatively inexpensive, but you may need to replace several at the same time. You should check the prices of several mechanics before making a decision. You can easily save between $50 and $100 by comparing quotes. Plus, you’ll save a lot of money by finding the right mechanic for the job. You can also use an online comparison tool to compare prices. You can find a mechanic that suits your needs at an affordable price.
    Control arm bushings are also an inexpensive way to replace parts of a car’s front or rear suspension. Typically, control arm bushings are made of two metal cylinders covered with a thick layer of rubber. They wear out due to accidents, potholes and off-roading. They are mounted with a bolt that goes through the inner barrel. It is important to replace these bushings as often as needed to improve operation.

    China BB40 Bearings GCr15 Material Ball Bearing Bicycle One Way Bearing     ball bearingChina BB40 Bearings GCr15 Material Ball Bearing Bicycle One Way Bearing     ball bearing
    editor by czh