ค้นหาข้อมูลสินค้าและตลับลูกปืน
NA 4840
Additional Details
Needle bearings with an inner ring consist of cylindrical rollers that have a small diameter relative to their length. Because of the large number of rollers, the bearing can handle high loads. The outer ring has two protruding edges to guide the bearing axially, and an ring groove with one or more lubrication holes to facilitate relubrication.
NA 4840
Needle roller bearings
Technical Specifications
| Series description | Needle roller with inner ring (NA) |
|---|---|
| ID d (mm) | 200 |
| OD D (mm) | 250 |
| Width B/T/H (mm) | 50 |
| Dim. | B |
| Bore | รูตรง (Cylindrical bore) |
| Sealing | เปิด (ไม่มีซีล/ฝาปิด) |
| Cage | |
| Clearance | ปกติ |
| Special features | |
| SKF Explorer | ★ Explorer |
| C dynamic (kN) | 224 |
| C0 static (kN) | 735 |
| Pu fatigue (kN) | 75 |
| Ref. speed (r/min) | 1800 |
| Limiting speed (r/min) | 2000 |
| Mass (kg) | 5.8 |
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