Product Description

Product Description

bafang 8fun bbs01 250w 350w bbs02 500w 750w central motor kit

With an integrated speed sensor, this mid-drive motor which is compatible with a 68/100/110/120mm bottom bracket has a rated power of 250w,350w,500w and 750w. a reduction ratio of 1:21.9 and a maximum torque of 160N.m, will provide the rider with great explosive force when starting the system. Hightly strong and efficient, this motor greatly enhances riding joy and is suitable for mountain bikes and sand bikes, which are the favorites of riders who love challenges as well as transport bikes. 

Buyers Show

 

Product Parameters

Motor Power	36V 250W 350W 48v 500W 750W mid motor
Wheel diameter	optional
Max Torque	80 N.M
Efficiency	>= 80
Pedal sensor	Speed sensor
Color	Black
Operating Temperature	-20 degree to 45 degree
Mangnet poles	8
Ip (waterproof)	IP65
Bottom Bracket	68mm /100mm/110mm/120mm for choosing
Controller	inside the motor
Certification	CE / EN 14764 / ROHS

 

Detailed Photos

 

Packing List

1.bafang bbshd mid crank motor(controller inside)

2.C965 LCD display or DPC-14 /DPC-18 colour display for choosing

3.chain wheel

4.crank

5.speed sensor and magnet

6.brake lever

7.thumb throttle

8. Nuts

1.Packing:
Standard export carton packing, with professional foam protection. 
2.Shipping:
For samples, we deliver goods to customer by UPS,FEDEX,DHL,TNT or EMS.
For mass production order, we deliver goods to customer by air or by sea.

 

Related Products

Bafang G510 mid drive motor

BBSHD mid drive motor

36V 11.6ah Frear Racktype Battery

 

Company Profile

CNEBIKES Co., Ltd is located in HangZhou city ,ZheJiang ,China.  We are just 1 hour from ZheJiang by high-speed train . It is easy for potential customers to come and have a look at our facility and products. We manufacture a variety of products . Our products are reliable and durable. We export to Europe, the USA, Canada, Southeast Asia, Australia and many other countries . Our customers have given us high praise for our products and service. 
 

Warranty terms

motor—>2 years(guarantee replacement in first year, guarantee repair in the next year.)
battery—->1years(guarantee replacement.),
other parts—->half an year 

 

 

Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.