INA
Needle Bearings
Needle Roller Bearing
From US$368.24
Excl. VAT| Spec | Price | Quantity |
|---|---|---|
| ina:NA4840-XL | US$368.24 |
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
INA NA4840-XL Needle Roller Bearing is a compact bearing designed to carry high radial load within a small cross-section. It is suitable for gearboxes, automotive transmissions, industrial links, and pivot positions where space saving and load capacity are both required.
Long, small-diameter rollers are arranged in a cage or full-complement design. Versions with or without inner rings are available, and shaft hardness and surface finish are critical when the shaft is used as the raceway.
Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.
| Symbol | Value | Description |
|---|---|---|
| d | 200 mm | Bore diameter |
| D | 250 mm | Outside diameter |
| B | 50 mm | Width |
| Cr | 260.000 N | Basic dynamic load rating, radial |
| C0r | 720.000 N | Basic static load rating, radial |
| Cur | 104.000 N | Fatigue load limit, radial |
| nG | 2.150 1/min | Limiting speed |
| nϑr | 1.250 1/min | Reference speed |
| ≈m | 5,769 kg | Weight |
| Symbol | Value | Description |
|---|---|---|
| F | 220 mm | Raceway diameter inner ring |
| rmin | 1,5 mm | Minimum chamfer dimension |
| s | 1,5 mm | Axial displacement |
| Item | Code | Description |
|---|---|---|
| Cage | Standard | |
| Coating | Without |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NA4840XLNA4840 XLNA4840INANA4840XLINA NA4840 XLINANA4840 XLINA NA4840XLINANA4840From US$368.24
Excl. VAT| Spec | Price | Quantity |
|---|---|---|
| ina:NA4840-XL | US$368.24 |
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