| Symbol | Value | Description |
|---|---|---|
| d | 20 mm | Bore diameter |
| D | 28 mm | Outside diameter |
| B | 13 mm | Width |
| Cr | 12.000 N | Dynamic load rating |
| C0r | 13.600 N | Static load rating |
| nG | 21.100 1/min | Limiting speed |
| nϑr | 12.000 1/min | Reference speed |
| ≈m | 0.0219 kg | Weight |

INA
Needle Bearings
Needle Roller Bearing
From US$6.30
Excl. VAT| Spec | Price | Quantity |
|---|---|---|
| ina:RNA4902-XL | US$6.30 |
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
INA RNA4902-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 | 20 mm | Bore diameter |
| D | 28 mm | Outside diameter |
| B | 13 mm | Width |
| Cr | 12.000 N | Dynamic load rating |
| C0r | 13.600 N | Static load rating |
| nG | 21.100 1/min | Limiting speed |
| nϑr | 12.000 1/min | Reference speed |
| ≈m | 0.0219 kg | Weight |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
| Code | Description |
|---|---|
| G20X28X4 | Sealing type |
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:
RNA4902XLRNA4902 XLRNA4902INARNA4902XLINA RNA4902 XLINARNA4902 XLINA RNA4902XLINARNA4902From US$6.30
Excl. VAT| Spec | Price | Quantity |
|---|---|---|
| ina:RNA4902-XL | US$6.30 |

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