| Customization: | Available |
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| After-sales Service: | Available |
| Warranty: | 1 year |
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DGBB Production Site
Granville, a high-quality product manufacturer, ensures compliance with top standards in steel quality, contact surface design, and efficient packing and lubrication of parts.
| Bore size | 3mm and up |
| Closures | Open/ Non-contact metallic shields/ Non-contact seals/ Contact seals |
| Ring Material | 52100 chrome steel/ 440C stainless steel/ 420C stainless steel |
| Seal Materiial | Nitrile/ Polyacrylic/ Viton |
| Retainer | Riveted steel/ Crimped steel/ Crowned steel/ Crowned nylon |
| Precision Class | ABEC-1/ ABEC-3/ ABEC-5/ ABEC-7 |
| Radial Clearance | C2/ C0/ C3/ C4/ C5 |
| Heat Stabilization | S0/ S1/ S2/ S3 |
Bicycle Bearing
| BICYCLE BEARINGS | |
| Bottom Bracket Bearings | Hub Bearing |
| Pedal Bearings | Headset Bearings |
| Derailleur Bearings | Frames Bearings |
| Motor Bearings | V-Max Bearings |
| TECHNICAL DATA | |
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| Bearing Type | Deep Groove Ball Bearing |
| Closures | Seal at each end |
| Bearing No. | 608-2RS |
| Inner Diameter(d) (mm) | 8 |
| Outer Diameter(D) (mm) | 22 |
| Width(B) (mm) | 1 |
| Dynamic Load (kgf) | 336 |
| Static Load (kgf) | 142 |
| Speed Lubricate (Grease) | 32000 |
| Speed Lubricate (Oil) | 37000 |
| Weight(g) | 11.8 |
| CATALOG | ||||||||
| Bearing No. |
Inner Diameter(d) (mm) |
Outer Diameter(D) (mm) |
Width(B) (mm) |
Dynamic Load (kgf) |
Static Load (kgf) |
Speed Lubricate (Grease) |
Speed Lubricate (Oil) |
Weight(g) |
| 608-2RS | 8 | 22 | 1 | 336 | 142 | 32000 | 37000 | 11.8 |
| 6802-2RS | 15 | 24 | 5 | 163 | 107 | 28000 | 33000 | 7 |
| 6804-2RS | 20 | 32 | 7 | 273 | 191 | 21000 | 25000 | 18 |
| 6806-2RS | 30 | 42 | 7 | 355 | 285 | 15000 | 18000 | 26 |
| 6708-2RS | 40 | 50 | 6 | 257 | 228 | 8500 | 15000 | 23 |
| 6810-2RS | 50 | 65 | 7 | SIS | S2S | 9500 | 11000 | 52 |
| 6816-2RS | 80 | 100 | 10 | 990 | 160 | 6000 | 7100 | 150 |
| MOTOR BEARING |
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| COMPOSITION |
| Electric bicycles commonly use ball bearings for their motors. This type of bearing excels in high-speed rotation applications, effectively reducing friction to ensure smoother operation. Motor bearings typically feature sealing or dust-proof designs to prevent dust and other impurities from entering, thereby extending the bearing's lifespan and enhancing performance. |
| CHARACTERISTICS |
| In electric bicycles, the motor bearings are central to the motor's internal components' smooth rotation. These bearings ensure the electric motor operates efficiently, delivering seamless power assistance to the rider's pedaling efforts. Well-maintained motor bearings enhance the e-bike's overall performance, allowing riders to effortlessly conquer hills and challenging terrains. |
| APPLICATION |
| Front Installed Motor Bearing |
| The front-installed motor bearing is positioned at the center of the front wheel in an electric bicycle. It is typically directly connected to the front wheel, providing the driving force for the front-wheel propulsion. The front-installed motor bearing can offer excellent traction, especially on wet or uneven surfaces, enhancing the grip of the front wheel. However, due to its presence, the rotational inertia of the front wheel may be altered, potentially affecting the handling performance and balance of the electric bicycle. |
| Mid-Installed Motor Bearing |
| The mid-installed motor bearing is positioned at the central location of an electric bicycle, typically near the bottom bracket of the frame. It is connected to the bicycle's drivetrain and provides power through the pedal crank. The setup of the mid-installed motor bearing ensures a more balanced power delivery, allowing for efficient utilization of the rider's pedaling force, resulting in higher performance and better balance, making the ride more natural and smooth. |
| Rear Installed Motor Bearing |
| The rear-installed motor bearing is positioned at the center of the rear wheel in an electric bicycle. It is directly connected to the rear wheel, providing the rear-wheel propulsion. A rear-mounted motor can offer excellent traction and stability, especially when climbing slopes or requiring higher torque. This configuration also provides good balance and handling performance as it maintains the traditional rear-wheel drive design of bicycles. |
FAQ
Q : Why choose us ?
A: a. With experiences over 16 years.
B. Strict inspection and high quality with reasonable price.
C. OEM service provided.
D. Delivery time is short.We will deliver goods on time as agreed in the contract.
Q: What kinds of bearing you supply?
A: main products are ball bearing, pillow block bearing , plastic bearing, ceramic bearing, and industrial tools, etc, as per customers' drawings or samples.
Q: When inspecting bearings, what should we need to consider?
A: The precision of the bearings (dimension tolerance, loading rate), internal clearance and hardness under heat treatment, structure of cage and material.
Q: Your product certifications?
A: ISO 9001:2008, RoHS and Reach.
Q: Can I have a sample order?
A: Yes, it is available to check quality first. Mixed samples are also acceptable.
Q: What about the lead time?
A: 3-7 days for samples, 3-4 weeks for mass production.
Q: What is your payment method?
A: We accept T/T, PAYPAL or Western Union, or credit card.
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