10Pcs MF128RS 8x12x3.5 mm ABEC-7 Flanged Miniature Ball Bearings For 3D Print
Model: MF128 2RS
Accuracy Class: ABEC-7
Bearing Type: Flange Ball Bearing
Bearing Material GCr15 Bearing Steel
Ball Material: GCr15 Bearing Steel
Seal Type: Rubber Seal Cover
Inner diameter (d): 8 mm
Outer diameter (D): 12m
Width (B): 3.5 mm
Premium Bearing Steel Flange Ball Bearings ABEC-7 Precision
Enjoy fast installation, positive axial locking, and reliable rotation with our high
-performance flange ball bearings, fitted with contact rubber seals on both sides for wet,dusty, and harsh working environments.
•GCr15 Chrome Bearing Steel Rings and balls are crafted from premium bearing steel
with excellent hardness and wear resistance, stably supporting radial and axial loads for a long service life under continuous high-speed rotation.
•Integrated One-piece Flange Rim The built-in flange works as an axial lock that positively
locates the bearing against the housing face — no snap rings or extra retaining parts needed. It eliminates layer shift and alignment errors, cuts machining costs, and guarantees square, repeatable mounting every time, saving space and assembly time.
•2RS Rubber Contact Seals
Double rubber contact seals on both sides hug the inner ring tightly, sealing out dust, dirt, moisture, and fine contaminants while locking the grease inside. They deliver stronger protection than metal shields in wet or dusty environments, keeping rotation smooth and maintenance-free over long service intervals.
•Grease Lubrication & C0 Clearance
Pre-filled with quality grease and built to C0 standard clearance, the sealed design retains lubricant for life, providing smooth, quiet rotation right out of the box with no re-lubrication required.
•ABEC-7 Precision
Precision-ground to ABEC-7 tolerance standards, delivering high rotational
accuracy, ultra-smooth operation, low noise, and minimal vibration — ideal for 3D printers, drones, power tools, micro motors, and other compact high-speed















