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Dynaroll Precision Miniature Ball Bearing, ABEC-5, Double Shielded, Extended Inner Ring, Stainless Steel

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Product Specifications
Material Type
Stainless Steel
UNSPSC Code
31171504
Brand Name
Dynaroll

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Currently showing 1-12 of 12
SRW133ZZ A5 0.0937" 0.1875" 0.1250" 11000 rpm 16 lbs 52 lbs B00634UCCI yes $12.47 Buy Options
SRW144ZZ A5 0.125" 0.25" 0.1094" 9500 rpm 10 lbs 31 lbs B00634UCVY yes $10.51 Buy Options
SRW155ZZ A5 0.1562" 0.3125" 0.125" 6700 rpm 49 lbs 144 lbs B00634UFT8 yes $10.81 Buy Options
SRW156ZZ A5 0.1875" 0.3125" 0.125" 6300 rpm 29 lbs 81 lbs B00634UG7O yes $11.11 Buy Options
SRW166ZZ A5 0.1875" 0.375" 0.125" 6300 rpm 29 lbs 81 lbs B00634UGRY yes $2.98 Buy Options
SRW1810ZZ A5 0.097" 0.1875" 0.1250" 4500 rpm 128 lbs 335 lbs B00634UJQC yes $3.26 Buy Options
SRW188ZZ A5 0.25" 0.5" 0.1875" 5600 rpm 33 lbs 84 lbs B00634UIP4 yes $10.18 Buy Options
SRW2-5ZZ A5 0.125" 0.3125" 0.1406" 8000 rpm 20 lbs 64 lbs B00634UDIG yes $10.00 Buy Options
SRW2-6ZZ A5 0.125" 0.375" 0.1406" 7100 rpm 40 lbs 124 lbs B00634UEIA yes $11.68 Buy Options
SRW2ZZ A5 0.125" 0.375" 0.1562" 6300 rpm 49 lbs 144 lbs B00634UF9S yes $10.06 Buy Options
SRW3ZZ A5 0.1875" 0.5" 0.196" 6000 rpm 56 lbs 160 lbs B00634UHJG yes $10.00 Buy Options
SRW4ZZ A5 0.25" 0.625" 0.196" 5000 rpm 90 lbs 243 lbs B00634UJ62 yes $3.35 Buy Options

Key Features

  • Single row, deep-groove precision miniature ball bearing for limited-space applications requiring high accuracy, high speeds, and both axial and radial loads
  • Metal shields on both sides of the bearing keep the lubricant in and contaminants out
  • 400-series hardened martensitic stainless steel for better resistance to corrosion and high temperatures than AISI 52100 chrome steel
  • Stainless steel cage evenly spaces balls for reduced friction, vibration, and noise
  • CN (normal) radial clearance for applications where thermal expansion is not a factor

Product Description

This double shielded Dynaroll precision miniature ball bearing is made of 400-series hardened martensitic stainless steel and has an Annular Bearing Engineers’ Committee (ABEC)-5 precision rating and an extended inner ring. The single-row, deep-groove precision miniature ball bearing is suitable for limited-space applications requiring high accuracy, high speeds, and both axial and radial loads. The bearing has deep inner and outer races that conform to the balls that run in them, allowing higher speeds and creating lower friction than bearings with comparable-sized roller bearings. It has a metal shield on either side that is fastened to the outside ring and extends over the rolling elements. The shields assist in keeping out contaminants such as dirt and grime and also help to hold in lubricant applied during manufacturing. The inner and outer rings and balls are made of a 400-series martensitic stainless steel hardened to a minimum of C58 on the Rockwell hardness scale, providing better resistance to corrosion and high temperatures than American Iron and Steel Institute (AISI) 52100 chrome steel, and higher hardness and wear resistance than plain stainless steel. This bearing has a stainless-steel cage to prevent the balls from coming into contact with each other during use, reducing friction, vibration, and noise, and an extended inner ring to improve shaft support and eliminate the need for additional location spacers. It can be used to a maximum operating temperature of 121 degrees C/250 degrees F. The ball bearing has a CN (normal) radial internal clearance designation, making it suitable for applications where the load and speeds do not result in thermal expansion. This clearance provides latitude for self-realignment and compensates for static and dynamic alignment errors. This bearing has an ABEC-5 rating for a higher standard of precision than ABEC-3 bearings. ABEC-rated ball bearings are manufactured to tight dimensional tolerances, making them useful in applications that require high accuracy, high rotational speeds, and increased operating efficiency. This ball bearing is for use in commercial and industrial applications including medical devices, radio controls, gearboxes, instrumentation, fishing reels, and small motors.

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

Dynaroll Corporation manufactures miniature bearings and ball bearings that meet International Organization for Standardization (ISO), Occupational Health and Safety Assessment Series (OHSAS), Production Part Approval Process (PPAP), and U.S. Food and Drug Administration (FDA) Critical standards for quality assurance. Founded in 1988, Dynaroll is based in Sylmar, California.

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