Cast Steel Bearing Housings – Precision Machined for Heavy-Duty Applications-Jiangsu Suao Metal Product Co., Ltd.

Cast Steel Bearing Housings – Precision Machined for Heavy-Duty Applications

Our high-quality cast steel bearing housings are designed for extreme loads and precision performance in demanding industrial applications. Made from ASTM A216 WCB cast steel and optionally other premium grades, these housings ensure high durability, reliability, and accuracy.Available in bore sizes from Ø50 mm to Ø1500 mm (1.969–59.055 in), outer diameters from 100 mm to 2000 mm, and widths from 50 mm to 500 mm, including the heavy-duty standard Ø500 mm bore × 700 mm OD × 200 mm width (19.685 × 27.559 × 7.874 in). Ideal for mining, wind turbines, pumps, conveyors, and large-scale industrial machinery.

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Key Features

·Heavy-Duty Strength: ASTM A216 WCB (yield ~250 N/mm²) supports extreme loads.
·Precision Machining: Bore tolerances ±0.05 mm ensure perfect bearing fit.
·Corrosion Resistance: Optional painting, galvanizing, or oil coating.
·Large Size Range: Bore sizes up to Ø1500 mm (59.055 in) for massive bearings.
·Durable Design: Cast steel construction for long-term reliability.
·Customizable Options: Tailored dimensions and finishes for specific applications.

Common Steel Grades

Steel Grade	Type	Yield Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Key Applications	Notes
ASTM A216 WCB	Cast Carbon Steel	~250	485–655	22	Standard & heavy-duty industrial machinery, mining, wind turbines	Most widely used; excellent machinability
ASTM A487 4Q	High-Strength Cast Steel	~485	655–895	15–20	Extreme-duty applications, large equipment	Superior strength for very high loads
ASTM A217 WC9	Cr-Mo Alloy Steel	~275	485–655	18	High-temperature applications, turbines, heavy machinery	Excellent thermal stability
AISI 304 (EN 1.4301)	Stainless Steel	~205	515–690	40	Corrosion-resistant environments, food, marine	Ideal for wet or chemically aggressive environments
ASTM A36	Structural Carbon Steel	~250	400–550	20	Standard machinery, smaller industrial applications	Cost-effective option for lighter loads

Typical Sizes & Dimensions

Bore Diameter (ID)	Outer Diameter (OD)	Width	Notes
Ø50 mm	120 mm	50 mm	Small machinery
Ø200 mm	400 mm	120 mm	Medium machinery
Ø500 mm	700 mm	200 mm	Heavy-duty industrial
Ø1000 mm	1400 mm	350 mm	Large equipment
Ø1500 mm	2000 mm	500 mm	Extreme-duty applications

Load Capacity: Up to 50,000 kg (110,231 lb) dynamic, depending on bearing type.
Tolerances: Bore ±0.05 mm for Ø50–500 mm; ±0.1 mm for >500–1500 mm. OD/Width ±0.5 mm for Ø50–500 mm; ±1 mm for >500–1500 mm. Surface finish Ra ≤ 1.6 µm.

Manufacturing Process

1. Casting: Sand or investment casting forms robust housings.
2. Precision Machining: CNC machining achieves bore ±0.05 mm and tight dimensional accuracy.
3. Heat Treatment: Normalized or annealed to enhance strength and toughness.
4. Surface Finishing: Painted, galvanized, or oiled for corrosion resistance.
5. Quality Testing: Dimensional checks, hardness testing, and ultrasonic inspections.

Applications

·Mining: Conveyor systems, crushers, and material handling (WCB, A487 4Q).
·Wind Turbines: Main shaft and gearbox housings (WCB, WC9).
·Heavy Machinery: Pumps, turbines, and industrial equipment (WCB, Ø500 mm bore).
·Corrosive Environments: Food processing or marine applications (AISI 304).
·Standard Applications: Smaller machinery and automotive (A36).
·Secondary Applications: Structural mounts in large equipment, corrosion-resistant fittings, and other custom uses.

Advantages

·Enhanced bearing life with precision fit.
·Reduced vibration and mechanical noise.
·High load-bearing capacity and impact resistance.
·Options for corrosion resistance in harsh environments.

Delivery & Quality Assurance

·Delivery Conditions: Normalized or annealed.
·Surface Conditions: Painted, galvanized, or oiled.
·Compliance: ASTM A216, A487, A217, A36, and AISI standards.
·Certificates: DIN EN 10204 3.1 for chemical composition, mechanical properties, and dimensional accuracy.