Encoder (Servo)
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This page explains how Shaft & Bearings is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The shaft and bearing assembly is a critical mechanical component within servo encoders, responsible for transmitting rotational motion from the motor to the encoder's sensing elements while providing stable, low-friction support.
Technical details and manufacturing context for Shaft & Bearings
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Shaft Diameter | 6–50 mm | Standard tolerance h6 for bearing seatsISO 286-2 |
| Shaft Length | 50–300 mm | Custom lengths available |
| Bearing Bore Diameter | 6–50 mm | Metric seriesISO 15 |
| Bearing Outer Diameter | 19–110 mm | Metric seriesISO 15 |
| Radial Clearance | 5–20 µm | C2 to C4 clearance groupsISO 5753-1 |
| Dynamic Load Rating | 2.5–35 kN | Basic dynamic load rating CISO 76 |
| Static Load Rating | 1.5–20 kN | Basic static load rating C0ISO 76 |
| Max Speed | 5000–30000 rpm | Oil lubricationISO 15312 |
| Operating Temperature | -40–120 °C | Standard steel bearingsISO 492 |
| Vibration Level | V1–V3 | V3 for low noiseISO 15242 |
| Noise Level | Z1–Z3 | Z3 for quiet operationISO 15242 |
| Material Grade | GCr15 | Equivalent to 100Cr6GB/T 18254 |
| Surface Roughness | Ra 0.2–0.4 µm | Bearing journalsISO 1302 |
| Weight | 0.1–5 kg | Depends on size |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric to 1.5 bar |
| axial load: | Up to 50 N |
| radial load: | Up to 100 N |
| temperature: | -40°C to +120°C |
| rotational speed: | Up to 10,000 RPM |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The shaft and bearings can be made from stainless steel, chrome steel, or ceramic. The material grade for steel bearings is GCr15 (equivalent to 100Cr6) per GB/T 18254. Material selection affects corrosion resistance, hardness, and weight.
Shaft diameters range from 6 to 50 mm with h6 tolerance for bearing seats per ISO 286-2. Shaft lengths range from 50 to 300 mm, with custom lengths available. These are reference ranges; confirm exact dimensions for your application.
Dynamic load rating (C) ranges from 2.5 to 35 kN, and static load rating (C0) from 1.5 to 20 kN, per ISO 76. Maximum speed with oil lubrication is 5000 to 30000 rpm per ISO 15312. These values depend on bearing size and configuration.
Vibration levels are classified as V1 to V3, and noise levels as Z1 to Z3, per ISO 15242. Lower numbers indicate lower vibration and noise. These classifications help select bearings for quiet operation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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