1Pcs MR104 Full Ceramic Bearing 4x10x4mm ABEC-9 Full Ceramic ZrO2 Sealed Ball Bearing
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Specifications
- Brand Name
- raindew
- High-concerned chemical
- None
- Origin
- Mainland China
- Model Number
- MR74FB
- is_customized
- Yes
- Certification
- None
- Material
- Ceramic
- Bearing Material :
- Ceramic ZrO2
- Ball Material :
- Ceramic ZrO2
- Bearing Sizes :
- 4x10x4 mm
- Inner Diameter :
- 4 mm
- Out Diameter :
- 10 mm
- Width :
- 4 mm
- Lubrication :
- Free Running Free Grease
- Bearing Type :
- Full Ceramic Bearing
- Application :
- Fishing Reel
- Bearing Characteristics :
- Running Smooth
- Choice
- yes
- semi_Choice
- yes
Product Description
TECHNICAL SPECS
MR104 CE Full Ceramic Bearing
Bore diameter: 4 mm
Outer diameter: 10 mm
Width (B): 4 mm
Precision: ABEC-9
Standard clearance: C0
Ball Material: Ceramic
Bearing Material: Ceramic
Bearing Characteristics : free of grease free running
Application : Fishing Reel Bearing
Full Ceramic Bearings For Fishing Reel
New upgraded full ceramic bearing second generation ABEC-9
Secret Weapon for long distance casters
Cast longer and faster
Super corrosion resistant bearing
bearing can work in salt water
High speed bearing make you cast longer and faster
Pros & Cons
Pros
- Full zirconia ceramic construction for corrosion resistance and long-lasting durability
- ABEC-9 precision rating for ultra-smooth, low-friction operation
- Pre-lubricated for immediate use out of the packaging
- Compact size perfect for small mechanical devices like fishing reels
Cons
- Only available in one fixed size (4x10x4mm), with no alternative sizing options
- Ceramic construction is more brittle than steel, making it prone to cracking under heavy impact
- No official brand warranty information is provided in the specs
- Limited application range, primarily noted for use in fishing reels only
Common Questions
What material is this MR104 bearing made of?
This is a full ceramic ZrO2 (zirconia) bearing, with both the ball and bearing housing constructed from ceramic.
What are the exact dimensions of this bearing?
The bearing has an inner diameter of 4mm, outer diameter of 10mm, and width of 4mm per the product specs.
What is this bearing primarily designed for?
It is specifically made for use in fishing reels, and also works for other small mechanical applications requiring smooth, low-friction movement.
What precision rating does this bearing have?
It has an ABEC-9 precision rating for extremely smooth, consistent performance.
Does this bearing require additional lubrication?
No, this bearing comes pre-lubricated for free-running use with no extra grease needed.
Product information last updated on December 28, 2025