ReviewsPrecision Ball Bearing

16 Pack 4 Colors Fidget Spinner Bearing and Cap Replacement Set, Chrome Steel Bearing Balls, High Speed 13mmx7mmx4mm Bearings Single Sealed Small Bearings for Fidget Spinner

【16PCS Bearings + Caps Set】 Includes 16x MR137 precision high-speed ball bearings with blue plastic seals and 16 pairs of ball bearing caps in four bright colors (diameter: approx. 2.1cm). MR137 Steel Ball Bearing size: I.D. (inner diameter) =7mm, O.D. (outer diameter) = 13mm, Thickness: 4mm..
【Premium Quality】 The bearings are made of high-quality stainless steel and plastic for durability and deformation resistance under heavy loads. Inner and outer races are machine polished for smooth, high-speed rolling. This bearing provides higher speeds, precision, and durability, reducing replacement and maintenance costs..
【Radial Ball Bearings】 MR137 bearings are sealed on one side to protect the equipment against contaminants such as dust and water and retain lubrication. Stainless steel races ensure durability and corrosion resistance. Single row radial ball bearings support applications with radial and axial loads..
【Wide Application】 Caps made with ABS plastic are lightweight and durable, compatible with MR137 bearings. With easy-to-install components, this bearing is perfect for a wide variety of applications, including fidget spinners, skateboards and other DIY projects. Use as replacement when the original caps and bearings are lost or ....

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uxcell SCS12UU Linear Ball Bearing Slide Block Units, 12mm Bore Dia (Pack of 4)

Model: SCS12UU (Bearing No.: LM12UU, Nominal Shaft Diamter (dr): 12mm).
Aluminium Alloy Linear Ball Bearing Slide Block Units.
Light-weight housing and Chromium Steel bearing ball, good abrasion resistance, high precision and good strength.
Smooth moving, low friction, high rigidity and long working life.
Suitalbe for kinds of electronic equipment/guide bar, and pillar.

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Witproton Ball Splines - Both Ends Tapped 8mmX270mm 1pc

Low friction: The ball does not cycle and can achieve rolling motion with minimal friction..
High precision linear movement: as part of shaft and nut, the clearance in rotation direction can be adjusted to ensure accuracy..
Transferable rotating torque: the ball rolls on the ball groove of the spline shaft and moves in a straight line while transferring the rotating torque..
Compact design: even a single shaft mechanism can move in a straight line, while keeping the nut in the direction of rotation without deviation..
Large bearing capacity and long service life: Because the rolling surface adopts r-shaped ball groove matching with the ball diameter, the contact area is large, the bearing capacity is strong and the service life is long..

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Witproton Ball Splines - One End Tapped 10mmX350mm 1pc

Low friction: The ball does not cycle and can achieve rolling motion with minimal friction..
High precision linear movement: as part of shaft and nut, the clearance in rotation direction can be adjusted to ensure accuracy..
Transferable rotating torque: the ball rolls on the ball groove of the spline shaft and moves in a straight line while transferring the rotating torque..
Compact design: even a single shaft mechanism can move in a straight line, while keeping the nut in the direction of rotation without deviation..
Large bearing capacity and long service life: Because the rolling surface adopts r-shaped ball groove matching with the ball diameter, the contact area is large, the bearing capacity is strong and the service life is long..

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Nb Ball Spline Nut 13 mm Bore Dia x 36 mm L

Low friction: The ball does not cycle and can achieve rolling motion with minimal friction..
High precision linear movement: as part of shaft and nut, the clearance in rotation direction can be adjusted to ensure accuracy..
Transferable rotating torque: the ball rolls on the ball groove of the spline shaft and moves in a straight line while transferring the rotating torque..
Compact design: even a single shaft mechanism can move in a straight line, while keeping the nut in the direction of rotation without deviation..
Large bearing capacity and long service life: Because the rolling surface adopts r-shaped ball groove matching with the ball diameter, the contact area is large, the bearing capacity is strong and the service life is long..

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(12) Garage Door 2\ Nylon Roller 4\ Stem 11 Ball Bearing Smooth Quiet Heavy Duty by The ROP Shop

The ROP Shop replacement 2" Nylon Garage Door Roller with 4" Stem & 11-Ball 6200ZZ Precision Bearing.
Specs - Roller Diameter: 1 13/16" for a 2" track. Roller Thickness: 1/2". Stem Length: 4 1/8" (3.5" from bevel). Stem Diameter: 7/16". Single Load: 150lbs. Bearing Type: 6200ZZ Precision. Roller Material: Nylon. Roller Color: White. Refer to images 2 & 3 for more information.
Rollers are constructed from nylon that is softer and quieter than plastic or metal rollers and smoother than original equipment rollers. Features a reinforced dual-wall bearing cage, sealed 6200ZZ ball bearing plus double plating thickness on stem designed for max performance and ultra-life weather protection. Garage door roller can reuse 100,000 cycles.
Installation Tips - Method 1: Slightly bend track at the seam to remove, replace roller and move the door to do the next roller (repeat on other side). Method 2: Remove screws that attach brackets to your door, secure cable before releasing the bottom brackets that are under the cable spring tension, then clamp the cable to the track, slide out old rollers, place new rollers in their place and screw in backers.

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uxcell SCS8UU Linear Ball Bearing Slide Block Units, 8mm Bore Dia (Pack of 4)

Model: SCS8UU (Bearing No.: LMF8UU, Nominal Shaft Diamter (dr): 8mm).
Aluminium Alloy Linear Ball Bearing Slide Block Units.
Light-weight housing and Chromium Steel bearing ball, good abrasion resistance, high precision and good strength.
Smooth moving, low friction, high rigidity and long working life.
Suitalbe for kinds of electronic equipment/guide bar, and pillar.

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Hilitand 1pc Ceramic Bearing 6001 High Precision Full Ceramic ZrO2 Deep Groove Ball Bearing 12x28x8mm

【ZrO2 and PTFE】This ceramic bearing is made of high quality ceramic ZrO2 and PTFE material, high precision and high speed..
【zirconium oxide races】This deep groove ball bearing adopted zirconium oxide races design, resistant to high temperatures and corrosion..
【smooth】Small frictional resistance, low power consumption, high mechanical efficiency, more efficient than metal bearings..
【full ceramic】The is a full ceramic ball bearing with diamagnetic electrically insulating, has better performance than metal ball ceramic bearings..
【wide applications】Standardization size, can be used for machinery manufacturing, equipment installation and maintenance..

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Ingersoll Rand 301B Air Die Grinder – 1/4\

Powerful motor with precision gearing offers 0.25 HP (0.19kW) at 21,000 rpm free speed.
The 301B Grinder includes ball-bearing construction and precision-machined steel gears for elongated tool life..
Easy-to-use, integral safety-lock throttle lever prevents accidental start up..
Strong aluminum housing withstands tough operating conditions.
The right angle of the 301B allows for easier access to hard-to-reach places..
Ergonomic and lightweight, making it more comfortable to use for longer stretches of time..
Front exhaust helps keep work surface clean..
Powerful motor delivers 0.25 HP (0.19k-Watt) at 21,000 rpm free speed.
Durable ball-bearing construction improves balance, reduces vibration, and ensures a longer life.
Small and lightweight design provides easy operation greater access to tight spots.
Easy-to-use, integral safety-lock throttle lever prevents accidental start up.

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Witproton Ball Splines with Both Ends Stepped and Tapped 13mmX250mm 1pc

Low friction: The ball does not cycle and can achieve rolling motion with minimal friction..
High precision linear movement: as part of shaft and nut, the clearance in rotation direction can be adjusted to ensure accuracy..
Transferable rotating torque: the ball rolls on the ball groove of the spline shaft and moves in a straight line while transferring the rotating torque..
Compact design: even a single shaft mechanism can move in a straight line, while keeping the nut in the direction of rotation without deviation..
Large bearing capacity and long service life: Because the rolling surface adopts r-shaped ball groove matching with the ball diameter, the contact area is large, the bearing capacity is strong and the service life is long..

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MR52 ZZ Bearing ABEC-5 (10PCS) 2x5x2.5 mm Miniature MR52ZZ Ball Bearings L-520ZZ W52 for Fidget Spinners, Micro Motor, Office Equipment

MR52ZZ (ID=2mm, OD=5mm, Thickness=2.5mm).
Bearing made from Chrome Steel for durability and resistance.This type bearing is Miniature Single Row Deep Groove Ball Bearing,mainly take the radial load as well as moderate axial load..
Bearing are fitted with two steel dust shields to prevent ingress of dirt and foreign matter, high temperature resistance..
Bearing Features: simple configuration,high speed,hight precision,less coefficient of friction,less vibration and noise,most widely used..
Miniature Deep Groove Ball Bearing suitable for all kinds of industrial equipment, micro motor,small rotary motor,office equipment and so on..

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