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Product Specifications:
| Item | Miniature Ball Bearing |
| Bearing Industry Number | R166 |
| Bore Dia. | 0.188" , 3/16" |
| Cage Material | Steel |
| Cage Type | Ribbon |
| Closure | Double Shielded |
| Dynamic Radial Load Capacity | 159.8471 lbf. |
| Fillet Radius | 0.0039" |
| Finish | Chrome Plated |
| Flange Dia. | 0.422" |
| Flange Thickness | 0.031" |
| Flange Type | Flanged |
| Included Retaining Ring | No |
| Lubricant Material | Grease |
| Max. Speed | 700140 RPM |
| Max. Temp. | 302°F |
| Min. Temp. | -40°F |
| Outer Ring Width | 1/8" |
| Outside Dia. | 3/8" |
| Retaining Ring Dia. | Not Applicable |
| Retaining Ring Groove | No |
| Retaining Ring Thickness | Not Applicable |
| Ring Material | Stainless Steel |
| Shield Material | Steel |
| Static Load Capacity | 60.701 lbf. |
| Static Radial Load Capacity | 60.70143 lbf. |
| System Of Measurement | Imperial |
Shipping Info:
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Closure | Bore Dia. | Outside Dia. | Outer Ring Width | Ring Material | Max. Temp. | Min. Temp. | Cage Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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SFRW168ZZA3MC3SRL | Double Shielded | 1/4" | 3/8" | 1/8" | Stainless Steel | 302°F | -40°F | Crown | €9.14 | |
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SFR168ZZA3MC3SRL | Double Shielded | 1/4" | 3/8" | 1/8" | Stainless Steel | 302°F | -40°F | Crown | €7.60 | |
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SFR168 A3MC3AF2 | Open | 1/4" | 3/8" | 1/8" | Stainless Steel | 401°F | -58°F | Crown | €7.66 | |
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SFRW1810ZZA3MC3SRL | Double Shielded | 0.312" | 1/2" | 0.156" | Stainless Steel | 302°F | -40°F | Crown | €9.14 | |
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SFR1810 A3MC3AF2 | Open | 0.312" | 1/2" | 0.156" | Stainless Steel | 401°F | -58°F | Crown | €7.47 | |
![]() |
SFRW188ZZA3MC3SRL | Double Shielded | 1/4" | 1/2" | 1/8" | Stainless Steel | 302°F | -40°F | Ribbon | €9.14 | |
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SFR188ZZA3MC3SRL | Double Shielded | 1/4" | 1/2" | 0.187" | Stainless Steel | 302°F | -40°F | Ribbon | €8.42 |
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EZO SFR166ZZA3MC3SRL Miniature Ball Bearing, R166, 3/16 Inch Bore, 0.422 Inch Flange Dia, Dbl Shield
€7.35 /unit



