Stainless Steel Inch Miniature Bearing
SXD produces stainless steel inch miniature bearings in all inch sizes. The stainless steel material can be 440 (9Cr18), 420 (9Cr13), or 304 or 316 stainless steel. Stainless steel inch miniature bearings can be widely used in medical equipment, low-temperature engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery, and other fields.
| Bearing No. | SEAL TYPE | Bore diameter(d) | Outer diameter(D) | Width(B) | BALL SIZE(mm) | BALL QTY | weight(g) |
| SR1-4 | open | 5/64"︱1.984mm | 1/4"︱6.35mm | 3/32"︱2.381mm | 1 | 7 | 0.4 |
| SR1-4ZZ | Shields | 5/64"︱1.984mm | 1/4"︱6.35mm | 0.1406"︱3.571mm | 1 | 7 | 0.53 |
| SR1-4 2RS | Rubber seal | 5/64"︱1.984mm | 1/4"︱6.35mm | 0.1406"︱3.571mm | 1 | 7 | 0.53 |
| SR1-5 | open | 3/32"︱2.381mm | 5/16"︱7.938mm | 0.1094"︱2.779mm | 1.588 | 6 | 0.6 |
| SR1-5ZZ | Shields | 3/32"︱2.381mm | 5/16"︱7.938mm | 0.1406"︱3.571mm | 1.588 | 6 | 1.15 |
| SR1-5 2RS | Rubber seal | 3/32"︱2.381mm | 5/16"︱7.938mm | 0.1406"︱3.571mm | 1.588 | 6 | 1.15 |
| SR133 | open | 3/32"︱2.381mm | 3/16"︱4.762mm | 0.0625"︱1.588mm | 0.8 | 7 | 0.1 |
| SR133ZZ | Shields | 3/32"︱2.381mm | 3/16"︱4.762mm | 3/32"︱2.381mm | 0.8 | 7 | 0.15 |
| SR133-2RS | Rubber seal | 3/32"︱2.381mm | 3/16"︱4.762mm | 3/32"︱2.381mm | 0.8 | 7 | 0.15 |
| SR144 | open | 1/8"︱3.175mm | 1/4"︱6.35mm | 3/32"︱2.381mm | 1 | 7 | 0.27 |
| SR144ZZ | Shields | 1/8"︱3.175mm | 1/4"︱6.35mm | 0.1094"︱2.779mm | 1 | 7 | 0.4 |
| SR144-2RS | Rubber seal | 1/8"︱3.175mm | 1/4"︱6.35mm | 0.1094"︱2.779mm | 1 | 7 | 0.4 |
| SR2 | open | 1/8"︱3.175mm | 3/8"︱9.525mm | 5/32"︱3.967mm | 1.588 | 7 | 1.04 |
| SR2ZZ | Shields | 1/8"︱3.175mm | 3/8"︱9.525mm | 5/32"︱3.967mm | 1.588 | 7 | 1.37 |
| SR2-2RS | Rubber seal | 1/8"︱3.175mm | 3/8"︱9.525mm | 5/32"︱3.967mm | 1.588 | 7 | 1.37 |
| SR2-5 | open | 1/8"︱3.175mm | 5/16"︱7.938mm | 0.1094"︱2.779mm | 1.588 | 6 | 0.5 |
| SR2-5ZZ | Shields | 1/8"︱3.175mm | 5/16"︱7.938mm | 0.1406"︱3.571mm | 1.588 | 6 | 0.74 |
| SR2-5-2RS | Rubber seal | 1/8"︱3.175mm | 5/16"︱7.938mm | 0.1406"︱3.571mm | 1.588 | 6 | 0.74 |
| SR2-6 | open | 1/8"︱3.175mm | 3/8"︱9.525mm | 0.1094"︱2.779mm | 1.588 | 7 | 0.96 |
| SR2-6ZZ | Shields | 1/8"︱3.175mm | 3/8"︱9.525mm | 0.1406"︱3.571mm | 1.588 | 7 | 1.23 |
| SR2-6-2RS | Rubber seal | 1/8"︱3.175mm | 3/8"︱9.525mm | 0.1406"︱3.571mm | 1.588 | 7 | 1.23 |
| SR2A | open | 1/8"︱3.175mm | 1/2"︱12.7mm | 0.1719"︱4.366mm | 1.588 | 7 | 3.3 |
| SR2AZZ | Shields | 1/8"︱3.175mm | 1/2"︱12.7mm | 0.1719"︱4.366mm | 1.588 | 7 | 1.23 |
| SR2A-2RS | Rubber seal | 1/8"︱3.175mm | 1/2"︱12.7mm | 0.1719"︱4.366mm | 1.588 | 7 | 1.23 |
| SR155 | open | 5/32"︱3.969mm | 5/16"︱7.938mm | 0.1094"︱2.779mm | 1 | 10 | 0.51 |
| SR155ZZ | Shields | 5/32"︱3.969mm | 5/16"︱7.938mm | 1/8"︱3.175mm | 1 | 10 | 0.61 |
| SR155-2RS | Rubber seal | 5/32"︱3.969mm | 5/16"︱7.938mm | 1/8"︱3.175mm | 1 | 10 | 0.61 |
| SR156 | open | 3/16"︱4.762mm | 5/16"︱7.938mm | 0.1094"︱2.779mm | 1 | 10 | 0.4 |
| SR156ZZ | Shields | 3/16"︱4.762mm | 5/16"︱7.938mm | 1/8"︱3.175mm | 1 | 10 | |
| SR156-2RS | Rubber seal | 3/16"︱4.762mm | 5/16"︱7.938mm | 1/8"︱3.175mm | 1 | 10 | |
| SR166 | open | 3/16"︱4.762mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1.588 | 8 | 0.81 |
| SR166ZZ | Shields | 3/16"︱4.762mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1.588 | 8 | 0.85 |
| SR166-2RS | Rubber seal | 3/16"︱4.762mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1.588 | 8 | 0.85 |
| SR3 | open | 3/16"︱4.762mm | 1/2"︱12.7mm | 5/32"︱3.967mm | 2.381 | 7 | 2.21 |
| SR3ZZ | Shields | 3/16"︱4.762mm | 1/2"︱12.7mm | 0.1960"︱4.978mm | 2.381 | 7 | |
| SR3-2RS | Rubber seal | 3/16"︱4.762mm | 1/2"︱12.7mm | 0.1960"︱4.978mm | 2.381 | 7 | |
| SR3A | open | 3/16"︱4.762mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 5.08 |
| SR3AZZ | Shields | 3/16"︱4.762mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 5.08 |
| SR3A-2RS | Rubber seal | 3/16"︱4.762mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 5.08 |
| SR168 | open | 1/4"︱6.35mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1 | 11 | 0.57 |
| SR168ZZ | Shields | 1/4"︱6.35mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1 | 11 | 0.6 |
| SR168-2RS | Rubber seal | 1/4"︱6.35mm | 3/8"︱9.525mm | 1/8"︱3.175mm | 1 | 11 | 0.6 |
| SR188 | open | 1/4"︱6.35mm | 1/2"︱12.7mm | 1/8"︱3.175mm | 2 | 8 | 1.6 |
| SR188ZZ | Shields | 1/4"︱6.35mm | 1/2"︱12.7mm | 3/16"︱4.762mm | 2 | 8 | 2.32 |
| SR188-2RS | Rubber seal | 1/4"︱6.35mm | 1/2"︱12.7mm | 3/16"︱4.762mm | 2 | 8 | 2.32 |
| SR4 | open | 1/4"︱6.35mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 4.46 |
| SR4ZZ | Shields | 1/4"︱6.35mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 4.54 |
| SR4-2RS | Rubber seal | 1/4"︱6.35mm | 5/8"︱15.875 | 0.1960"︱4.978mm | 2.381 | 8 | 4.54 |
| SR4A | open | 1/4"︱6.35mm | 3/4"︱19.05mm | 0.2188"︱5.558 | 3.5 | 6 | 7.48 |
| SR4AZZ | Shields | 1/4"︱6.35mm | 3/4"︱19.05mm | 0.2188"︱5.558 | 3.5 | 6 | 10 |
| SR4A-2RS | Rubber seal | 1/4"︱6.35mm | 3/4"︱19.05mm | 0.2188"︱5.558 | 3.5 | 6 | 10 |
| SR1810 | open | 5/16"︱7.938mm | 1/2"︱12.7mm | 5/32"︱3.967mm | 1.2 | 12 | 1.39 |
| SR1810ZZ | Shields | 5/16"︱7.938mm | 1/2"︱12.7mm | 5/32"︱3.967mm | 1.2 | 12 | 1.57 |
| SR1810-2RS | Rubber seal | 5/16"︱7.938mm | 1/2"︱12.7mm | 5/32"︱3.967mm | 1.2 | 12 | 1.57 |
| SR6 | open | 3/8"︱9.525mm | 7/8"︱22.225 | 0.2188"︱5.558 | 3.97 | 7 | 9.02 |
| SR6ZZ | Shields | 3/8"︱9.525mm | 7/8"︱22.225 | 0.2812"︱7.142mm | 3.97 | 7 | 11.7 |
| SR6-2RS | Rubber seal | 3/8"︱9.525mm | 7/8"︱22.225 | 0.2812"︱7.142mm | 3.97 | 7 | 11.7 |
| SR8 | open | 1/2"︱12.7mm | 1 1/8"︱34.925mm | 1/4"︱6.35mm | 4.762 | 8 | 11.6 |
| SR8ZZ | Shields | 1/2"︱12.7mm | 1 1/8"︱34.925mm | 5/16"︱7.938mm | 4.762 | 8 | 24.1 |
| SR8-2RS | Rubber seal | 1/2"︱12.7mm | 1 1/8"︱34.925mm | 5/16"︱7.938mm | 4.762 | 8 | 24.1 |
