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

Available in multiple versions

5 out of 5 stars 1 customer review

Price: $7.98 - $23.90
Product Specifications
Brand Name Dynaroll
Material Type Stainless Steel
UNSPSC Code 31171504

This double shielded Dynaroll precision miniature ball bearing is made of ... See more product details

Currently showing 1-16 of 16
Part Number Bore Diameter Outside Diameter Bearing Width String Max Rotational Speed Static Load Capacity Dynamic Load Capacity Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
SR0ZZ A5 0.0469 inches 0.1562 inches 0.0937 inches 12000 rpm 8.5 pounds 31 pounds B00634T3V4
SR133ZZ A5 0.0937 inches 0.1875 inches 0.0937 inches 9500 rpm 10 pounds 31 pounds B00634T5TO
+ $6.51 Shipping
SR144ZZ A5 0.125 inches 0.25 inches 0.1094 inches 8000 rpm 20 pounds 64 pounds B00634T8JG
+ $6.51 Shipping
SR155ZZ A5 0.1562 inches 0.3125 inches 0.125 inches 6300 rpm 29 pounds 81 pounds B00634TF26
+ $7.67 Shipping
SR156ZZ A5 0.1875 inches 0.3125 inches 0.125 inches 6300 rpm 29 pounds 81 pounds B00634TGHU
SR166ZZ A5 0.1875 inches 0.375 inches 0.125 inches 6000 rpm 56 pounds 160 pounds B00634THL0
SR168ZZ A5 0.25 inches 0.5 inches 0.125 inches 5600 rpm 33 pounds 84 pounds B00634TJDQ
+ $6.53 Shipping
SR1810ZZ A5 0.3125 inches 0.5 inches 0.1562 inches 4800 rpm 52 pounds 122 pounds B00634TM6A
+ $6.51 Shipping
SR188ZZ A5 0.25 inches 0.625 inches 0.1875 inches 5000 rpm 90 pounds 243 pounds B00634TK5I
+ $3.99 Shipping
SR1ZZ A5 0.055 inches 0.1875 inches 0.1094 inches 11000 rpm 16 pounds 52 pounds B00634T53K
SR2-5ZZ A5 0.125 inches 0.3125 inches 0.1406 inches 7100 rpm 40 pounds 124 pounds B00634T9J0
+ $6.53 Shipping
SR2-6ZZ A5 0.125 inches 0.375 inches 0.1406 inches 6300 rpm 49 pounds 144 pounds B00634TALC
SR2AZZ A5 0.125 inches 0.5 inches 0.1719 inches 6300 rpm 49 pounds 144 pounds B00634TDKK
+ $6.57 Shipping
SR2ZZ A5 0.125 inches 0.375 inches 0.1562 inches 6700 rpm 49 pounds 144 pounds B00634TBKC
+ $6.60 Shipping
SR3ZZ A5 0.1875 inches 0.5 inches 0.196 inches 5000 rpm 108 pounds 293 pounds B00634TIGY
+ $6.63 Shipping
SR4ZZ A5 0.25 inches 0.5 inches 0.196 inches 4500 rpm 128 pounds 335 pounds B00634TLDY
+ $6.53 Shipping
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Product 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 Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0064OUCRW
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Product Warranty: For warranty information about this product, please click here

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. 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. 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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Top Customer Reviews

By G.S. on February 24, 2013
Static Load Capacity: 20Bore Diameter: 0.125Part Number: SR144ZZ A5Max Rotational Speed: 8000Outside Diameter: 0.25Dynamic Load Capacity: 64Bearing Width String: 0.1094 Verified Purchase
ALMOST lost one when I opened the package, watch out for that. Otherwise, they work perfectly! I just wish my 1/8" rod had a better tolerance...
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