KACTUS About SKF bearings Version（SKF bearing ring + G3 silicon nitride ceramic balls）:
SKF bearings are the leader in bearing technology and manufacturing. SKF bearing rings have the advantages of higher rated load, lower noise, greatly reduced maintenance costs, and increased machine running time. Choose it, you can make the riding experience more comfortable and happy. Compared with our other bottom brackets, it has two outstanding features: ① The better wear resistance of the SKF steel ring ② The better sealing and waterproofing of the bearings. and for the ceramic bearings we use non-skf brand silicon nitride ceramic beads, making our skf bottom bracket more cost-effective.
About G3 Silicon Nitride Ceramic Beads :
It highlights the higher strength and impact resistance characteristics of Si3N4, making it better than metal bearings, Secondly, their better wear resistance and heat resistance, light weight and smoothness, making the cranksets smoother during rotation. Be loved and recommended by cycling enthusiasts.reducing friction.
Maintenance of bearings
* Recommend professional bike work shop rebuild .
* Normally do not need remove bottom bracket from bike frame.
* Please follow the recommend maintenance instruction
Please follow the steps to maintain the bottom bracket for a longer lasting use.
1. Remove the black plastic side cover of the bottom bracket.
2. Clean the bearing surface.
3. Remove the rubber side cover from the bearing with a knife or thin sheet.
4. Use industrial alcohol to clean bearing rollers and cages.
5. After cleaning, please fully inject the bearing grease into the bearing to fill all the gaps.
6. Reset the rubber cover , and then coat the outer surface of the bearing with waterproof grease.
7. Reset the black plastic cover of the bottom bracket and apply waterproof grease to the surface of the side cover.
Complete the maintenance.
When to maintain
Riding in wet and muddy conditions requires bearing maintenance every 1000-3000 kms
Riding in a clean and dry environment requires maintenance every 5,000 kms
Model Number:SKF T47-30(86.5mm)↓↓↓
Color:Black ,Red
Material:Aluminum Alloy,Ceramic Palin
Weight :About 96g(Weight does not include accessories)
Shell width:86.5mm(68mm-73mm)
Applicable Axis:φ30mm*φ30mm
Thread:M47*1
Five-way width 68mm:
Fit for SRAM Red22 BB30,S-works, Cannondale Hollow-gram Si\SL\SiSL\SiSL2 crankset.
Five-way width 86mm:
Fit for SRAM Rival22\ Force22\S900\S952 BB30 cranksets.
Fit for SRAM Red Quarq BB30 and other shaft diameter 30mm cranksets.
Fit for Rotor 3D+\3D30\3DF\Aldhu etc crankset with an axis diameter of 30mm.
How to choose the correct BB?
① Thread Standard < Threaded five-way >
② Five-way width (Shell width)
③ Shaft diameter (Applicable Axis)
CNC Machining Process
Heat treated CNC process Guaranteed strength Lightweight at the same time.
G3 Ceramic Bearing
1.Ceramic bearings are installed in cups.
2.High quality G3 silicon nitride ceramic beads and hardened-steel races.
3.G3 Silicon nitride ceramic beads ,it highlights the higher strength and impact resistance characteristics of Si3N4, making it better than metal bearings, Secondly, their better wear resistance and heat resistance,light weight and smoothness, making the cranksets smoother during rotation. Be loved and recommended by cycling enthusiasts.
4.Low operating noise.
SKF BEARING
The SKF bearing life is several times that of traditional bearings
Super wear-resistant and super smooth
Special bearings for competition
Bottom Parts
Lightweight aluminum alloy is not easily deformed Built-in rubber ring to prevent dust from entering.
Product physical photos
The product is taken in kind and displayed from multiple angles, showing you more different product scenarios
Product Packaging
Note: Due to different batches, the factory will replace the outer packaging of the product, please refer to the actual receipt!
