NTN NA4907LL needle roller bearings
What is NTN NA4907LL needle roller bearings in mechanical engineering? Manufacturing Service . Upload your CAD 21 mm d file for an instant.
| d | 21 mm |
| cage material: | Brass |
| bore type: | Straight |
| finish/coating: | Uncoated |
| internal clearance: | C0 |
| closure type: | Open |
| precision rating: | RBEC 1 (ISO Class Normal) |
| series: | A53 |
Detailed Parameters
parameter：
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