Main Crushing Rollers
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This page explains how Bearing Housings 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.
Structural components that support and align bearings within crushing machinery.
Technical details and manufacturing context for Bearing Housings
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Bore Diameter | 20–200 mm | Matches bearing outer diameterISO 15 |
| Overall Width | 30–300 mm | Affects housing strength and fit |
| Center Height | 40–200 mm | Ensures shaft alignmentISO 113 |
| Bolt Hole Spacing | 80–400 mm | Must match mounting pattern |
| Bolt Hole Diameter | 10–30 mm | For mounting bolts |
| Material Grade | HT200–HT300 | Higher grade for heavy loadsGB/T 9439 |
| Tensile Strength | 200–300 MPa | Minimum for structural integrityGB/T 9439 |
| Hardness | 170–240 HB | Wear resistanceGB/T 231.1 |
| Operating Temperature | -20–120 °C | Beyond range may deform |
| Tolerance Grade | IT6–IT8 | Ensures bearing fitISO 286 |
| Surface Roughness | Ra 1.6–3.2 μm | Critical for sealingISO 1302 |
| Weight | 5–50 kg | Affects handling and installation |
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: | Max 10 MPa (100 bar) static load, 5 MPa dynamic |
| other spec: | Max shaft speed: 3000 RPM, Vibration tolerance: ≤ 4.5 mm/s RMS, IP65/IP67 protection standard |
| temperature: | -20°C to +120°C (standard), up to +200°C with special seals/lubrication |
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.
Manufacturer profiles associated with Bearing Housings.
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.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
Bearing housings are typically made from cast iron, cast steel, or ductile iron. Material grades such as HT200–HT300 (per GB/T 9439) are common, with tensile strengths of 200–300 MPa. The choice depends on load requirements and application.
Select the housing based on the bearing outer diameter (bore diameter 20–200 mm, ISO 15), overall width (30–300 mm), center height (40–200 mm, ISO 113), and bolt hole spacing (80–400 mm). Ensure the bore diameter matches the bearing, and the center height aligns the shaft. Verify all dimensions with the manufacturer.
Relevant standards include ISO 15 for bore diameter, ISO 113 for center height, ISO 286 for tolerance grades (IT6–IT8), ISO 1302 for surface roughness, and GB/T 9439 for material grade and tensile strength. These standards serve as references for verification.
Signs include unusual noise, vibration, overheating, or visible cracks. Misalignment or loosening of bolts can cause premature bearing wear. Regular inspection and adherence to operating temperature limits (-20°C to 120°C) help prevent failure.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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