Bearing Set

Product Specifications

Technical details and manufacturing context for Bearing Set

Definition

A bearing set is a complete assembly of bearing elements that work together to facilitate smooth rotational motion in mechanical systems. As part of End Supports/Bearings, it provides structural support to shafts, minimizes friction between moving parts, and ensures precise alignment under various loads and speeds. These sets typically include inner and outer rings, rolling elements (balls or rollers), and cages or retainers, all engineered to function as a cohesive unit. The bearing set is a component used in machinery and equipment manufacturing, available in materials such as chrome steel, stainless steel, and ceramic. Key parameters include bore diameter (10–200 mm), outer diameter (30–350 mm), width (9–70 mm), dynamic load rating (5–150 kN), static load rating (10–200 kN), limiting speed (3000–15000 rpm), radial clearance (C2–C4), tolerance class (P0–P6), operating temperature (-40–120 °C), vibration level (V1–V4), and weight (0.05–15 kg). These parameters are referenced to ISO standards such as ISO 15, ISO 76, ISO 15312, ISO 5753-1, ISO 492, and ISO 15242. The values are typical ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The bearing set operates by distributing loads through rolling elements between inner and outer rings, converting sliding friction into rolling friction. This reduces energy loss, heat generation, and wear while maintaining shaft position and rotational accuracy within the machinery's support structure. Selection requires consideration of shaft and housing dimensions, load ratings, speed, clearance, tolerance, temperature, and vibration requirements. Proper installation, lubrication, and alignment are critical for performance. Maintenance signals include abnormal noise, vibration, temperature rise, or increased running torque. Failure boundaries include exceeding load or speed ratings, improper lubrication, contamination, or misalignment. Always consult the manufacturer for model-specific data and compliance.

Working Principle

The bearing set operates by distributing loads through rolling elements between inner and outer rings, converting sliding friction into rolling friction. This reduces energy loss, heat generation, and wear while maintaining shaft position and rotational accuracy within the machinery's support structure. The rolling elements, such as balls or rollers, are separated by a cage or retainer to prevent direct contact and ensure even load distribution. The inner ring rotates with the shaft, while the outer ring is typically stationary in the housing. The load is transferred from the shaft to the inner ring, through the rolling elements, to the outer ring, and then to the housing. This design allows for smooth rotation with minimal friction, supporting radial and axial loads depending on the bearing type. The set's performance is influenced by material properties, internal clearance, and lubrication. Proper selection and installation are essential to achieve the intended service life and reliability.

Common Materials

Chrome Steel, Stainless Steel, Ceramic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	10–200 mm	Standard metric seriesISO 15
Outer Diameter	30–350 mm	Matches housing boreISO 15
Width	9–70 mm	Affects load capacityISO 15
Dynamic Load Rating	5–150 kN	Higher for longer life
Static Load Rating	10–200 kN	For stationary loadsISO 76
Limiting Speed	3000–15000 rpm	Oil lubrication assumedISO 15312
Radial Clearance	C2–C4	C3 for normal applicationsISO 5753-1
Tolerance Class	P0–P6	P6 for higher precisionISO 492
Operating Temperature	-40–120 °C	Above 120°C requires special greaseISO 15312
Vibration Level	V1–V4	V4 for low noiseISO 15242
Weight	0.05–15 kg	Approx. per set

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Inner Ring Part
Mounts directly onto the rotating shaft and provides raceway for rolling elements

Material: Chrome Steel
Outer Ring Part
Fits into the housing and provides stationary raceway for rolling elements

Material: Chrome Steel
Rolling Elements Part
Balls or rollers that facilitate smooth rotation by reducing friction between rings

Material: Chrome Steel
Cage/Retainer Part
Maintains proper spacing and alignment of rolling elements within the bearing

Material: Steel or Polymer

Applied To / Applications

This component is essential for the following industrial systems and equipment:

End Supports/Bearings

View system integration details

Manufacturers of Bearing Set

Manufacturer profiles associated with Bearing Set.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

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Frequently Asked Questions

What materials are available for bearing sets?

According to the directory, bearing sets can be made of chrome steel, stainless steel, or ceramic. The choice of material affects load capacity, corrosion resistance, and operating temperature limits. Confirm the specific material for your application with the manufacturer.

What are the typical bore diameter ranges?

The bore diameter typically ranges from 10 to 200 mm, as listed in the directory. This is a reference range; the exact bore size must match the shaft diameter and be verified with the manufacturer for the specific bearing set.

Which standards apply to bearing sets?

The directory lists ISO standards such as ISO 15 for dimensions, ISO 76 for load ratings, ISO 15312 for speed and temperature, ISO 5753-1 for radial clearance, ISO 492 for tolerance class, and ISO 15242 for vibration level. These standards serve as procurement references; compliance must be confirmed with the supplier.

How should I select a bearing set for my application?

Selection involves determining required bore and outer diameters, load ratings (dynamic and static), limiting speed, radial clearance, tolerance class, operating temperature, and vibration level. These parameters must be matched to your application's requirements. Always verify the values with the manufacturer, as the listed ranges are general references.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 100 MPa static load capacity, 50 MPa dynamic load
other spec:	Maximum rotational speed: 10,000 RPM (depends on bearing type and lubrication)
temperature:	-40°C to +150°C (standard), up to +250°C with special materials

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards