NB
SW4 Linear Motion Ball Bushing - 1/4" ID Ball Bearing NB Systems Japan
SW4 Linear Motion Ball Bushing - NB Systems Japan
✔️ 1/4" ID Precision Ball Bearing for Linear Motion Applications
This SW4 linear ball bushing from NB Systems (Nippon Bearing) is engineered for ultra-smooth motion in high-accuracy setups. With a 1/4" inch bore and made in Japan, it’s built to tight tolerances and commonly used in CNC machines, automation guides, and precision tooling across U.S. manufacturing. It features four ball circuits and a steel retainer for long-lasting performance in demanding environments.
✅ Pack size: 1 bearing
✅ Type: Linear motion ball bushing
✅ Bore: 1/4" inch (0.2500")
✅ Outer diameter (D): 1/2" inch (0.5000")
✅ Length (L): 3/4" inch (0.7500")
✅ Flange width (B): 0.5110"
✅ Overall width (W): 0.0390"
✅ Outer ring diameter (D1): 0.4687"
✅ Number of ball circuits: 4
✅ Material: Steel retainer, precision-ground components
✅ Brand: NB (Nippon Bearing), made in Japan
Dimensions Table:
| Bore (dr) | OD (D) | Length (L) | B | W | D1 |
|---|---|---|---|---|---|
| 0.2500" | 0.5000" | 0.7500" | 0.5110" | 0.0390" | 0.4687" |
Performance Specs:
✅ Eccentricity: 0.0003"
✅ Radial clearance: 0.0005"
✅ Dynamic load rating (CN): 206 N
✅ Static load rating (CoN): 265 N
💡 Why choose linear ball bushings for precision machinery?
Linear ball bushings provide smooth, low-friction motion with high load capacity, ideal for repeatable accuracy in linear travel.
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Delivers precise guidance for CNCs, robotics, and lab automation
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High load ratings with minimal play
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Excellent for sliding shafts in tight tolerance applications
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Japanese-manufactured quality ensures long-term reliability
If you want pinpoint motion with consistent performance, the SW4 bushing is your go-to upgrade. Grab one and glide into precision!