4pcs 4X7X2mm SMR74 CB ABEC7 LD 4x7x2 Stainless steel hybrid ceramic ball bearing
Technical Details
Ball Material: | ceramic |
Brand Name: | FREERUN |
Cage/Retainer type: | Crown retainer or Ribbon Retainer |
Coatings: | STEEL |
Material: | Steel |
Model Number: | SMR74/OPEN |
Number of Row: | Single Row |
Oil Lubrication: | Shell Oil#12 and SRL Greased |
Precision Rating: | ABEC-7 |
Quality-standard of balls: | G10 as DIN 5401, ISO 3 290 |
Rings' Material: | Chrome steel |
RoHs: | We are complying 100% with the EU Directives for RoHS and WEEE |
Seals Type: | OPEN |
Structure: | Deep groove ball |
Surface Roughness: | Ra 0.05 |
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