| 符号 | 数值 | 说明 |
|---|---|---|
| d | 20 mm | 内径 |
| D | 37 mm | 外径 |
| B | 17 mm | 宽度 |
| Cr | 23.700 N | Dynamic load rating |
| C0r | 25.500 N | Static load rating |
| nG | 16.900 1/min | 极限转速 |
| nϑr | 9.400 1/min | 参考转速 |
| ≈m | 0.078 kg | 重量 |
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INA
INA NA4904-XL 滚针轴承 20 × 37 × 17 mm
Needle Bearings
Needle Roller Bearing
CN¥65.98起
不含税ina:NA4904-XLCN¥65.98
| 规格 | 价格 | 数量 |
|---|---|---|
| ina:NA4904-XL | CN¥65.98 |
有库存预计配送日期：2026.06.17（韩国库存）
显示价格为 EX-WORKS（国际贸易术语 2020）韩国首尔。运费、关税及保险由买方承担。
- Category
- 滚针轴承
- Dimensions
- 20x37x17mm
Overview
INA NA4904-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.
Key features
- High radial load capacity in limited radial space
- Supports compact and lightweight designs
- Available with or without inner ring
- Suitable for heavily loaded gears and links
Typical applications
- Automotive transmissions
- Industrial gearboxes
- Compressors and pumps
- Links, pivots, and rocker arms
Selection guidance
Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.
| 符号 | 数值 | 说明 |
|---|---|---|
| Tmin | -30 °C | 最低工作温度 |
| Tmax | 120 °C | 最高工作温度 |
Also searched as
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:
NA4904XLNA4904 XLNA4904INANA4904XLINA NA4904 XLINANA4904 XLINA NA4904XLINANA4904
