FR168ZZ Flanged Shielded Ball Bearings 1/4" x 3/8" x 1/8" inch 10 Bearings Set of 10 FR168ZZ Flanged Shielded Ball Bearings, the inner diameter is 1/4", outer diameter is 3/8" and the width is 1/8", this is a popular size that could be used in many applications, Bearings are made of Chrome Steel, each bearing has 2 Metal Shield to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.
Flanged Radial Inch Ball Bearings like these are also used within machines like 3D Printers that have timing belts, and allow the belt to move and rotate while the edge holds the belt in place and keeps it from sliding off. Typically, two of these bearings will be used together to keep belts centred, but double-flanged bearings can also be used instead.
| Bearing Type | Ball |
| For Load Direction | Radial |
| Construction | Single Row |
| Seal Type | Shielded |
| Part Number | FR168ZZ |
| For Shaft Diameter | 0.25" |
| Bore Dia (d) | 0.25" |
| Bore Dia Tolerance | -0.0003" to 0" |
| For Housing ID | 0.375" |
| Outer Dia (D) | 0.375" |
| Outer Dia Tolerance | -0.0003" to 0" |
| Width (B) | 0.1250" |
| Width Tolerance | -0.005" to 0" |
| Flange Outer Dia. | 0.4220" |
| Flange Thickness | 0.036" |
| Ring Material | 52100 Chrome steel |
| Ball Material | 52100 Chrome steel |
| Cage Material | 300 Series Stainless Steel |
| Shield Material | 300 Series Stainless Steel |
| Dynamic Load Rating (Cr) (Newtons) | 71.075 lbf |
| Static Load Rating (Cor) (Newtons) | 31.034 lbf |
| Max Speed (Grease) (X1000 RPM) | 48 |
| Max Speed (Oil) (X1000 RPM) | 56 |
| Lubrication | Required |
| Shaft Mount Type | Press Fit |
| Temperature Range | -30° to 110 °C |
| ABEC Rating | ABEC-1 |
| Radial Clearance Trade No. | C0 |
| Radial Clearance | 0.00008" to 0.0005" |
| RoHS | Compliant |
| Ball Qty | 11 |
| Ball Dia | 0.03941" |
| Weight (grams) | 0.73 |
1 Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.
2 Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.
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