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Optimizing Performance: Your Guide to Engineering Bearing Specifications with Acquirex Group

Updated: Aug 26

Acquirex Group offers bearings designed for a range of applications, delivering solutions for industries that demand high-performance components.
Acquirex Group offers bearings designed for a range of applications, delivering solutions for industries that demand high-performance components.

In the demanding world of engineering, selecting the right bearing is paramount to ensuring optimal machine performance, longevity, and efficiency. At Acquirex Group, we understand that precision specifications are the foundation of reliable operation. We offer a comprehensive range of high-quality bearings, meticulously designed and manufactured to meet the most stringent industrial requirements.


Below, we detail the key engineering technical specifications for various bearing types, presented in a clear, bullet-point format to help you define your needs. Partner with Acquirex Group to access unparalleled expertise and a world-class product portfolio.

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Engineering Technical Specifications for Key Bearing Types

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1. Deep Groove Ball Bearings (DGBB)

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  • Designation: Single-row, double-row, open, shielded (Z, ZZ), sealed (RS, 2RS)

  • Material: High-carbon chromium steel (standard), Stainless steel, Ceramic (Si3N4, ZrO2)

  • Dimensions (mm): Bore (d), Outer Diameter (D), Width (B)

  • Load Capacity (kN): Dynamic (Cr), Static (C0)

  • Speed Rating (RPM): Grease lubrication, Oil lubrication (max speed)

  • Precision Class: ABEC-1 (P0) to ABEC-9 (P2)

  • Internal Clearance: C0 (Normal), C3, C4, C5 (larger clearances)

  • Lubrication: Pre-packed grease, open for oil lubrication

  • Operating Temperature Range: -30°C to +120°C (standard), up to +350°C (high-temp options)

  • Application Suitability: High speed, low friction, radial loads primarily, with some axial capacity.

 

2. Cylindrical Roller Bearings (CRB)

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  • Designation: Single-row (NU, NJ, NUP, N), Double-row (NN, NNU), Full complement

  • Material: High-carbon chromium steel (standard)

  • Dimensions (mm): Bore (d), Outer Diameter (D), Width (B)

  • Load Capacity (kN): Dynamic (Cr), Static (C0) – High radial load capacity

  • Speed Rating (RPM): Suitable for high speeds

  • Precision Class: P0, P6, P5

  • Internal Clearance: C0, C3, C4

  • Cage Type: Pressed steel, machined brass, polyamide

  • Operating Temperature Range: -30°C to +120°C

  • Application Suitability: Heavy radial loads, high speeds, accommodates axial displacement (NU, N types), high rigidity.

 

3. Tapered Roller Bearings (TRB)

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  • Designation: Single-row, double-row, four-row

  • Material: High-carbon chromium steel (standard)

  • Dimensions (mm): Bore (d), Outer Diameter (D), Width (B), Cone width, Cup width

  • Load Capacity (kN): Dynamic (Cr), Static (C0) – High radial and axial load capacity

  • Speed Rating (RPM): Moderate to high speeds

  • Precision Class: P0, P6, P5

  • Contact Angle: Specifies the ratio of axial to radial load capacity

  • Cage Type: Pressed steel, machined steel

  • Operating Temperature Range: -30°C to +120°C

  • Application Suitability: Combined (radial and axial) loads, high shock resistance, adjustable clearance.

 

4. Spherical Roller Bearings (SRB)

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  • Designation: Standard (E, CC), Sealed (2CS, 2CDB)

  • Material: High-carbon chromium steel (standard)

  • Dimensions (mm): Bore (d), Outer Diameter (D), Width (B)

  • Load Capacity (kN): Dynamic (Cr), Static (C0) – Extremely high radial and axial load capacity

  • Speed Rating (RPM): Moderate to high speeds

  • Precision Class: P0, P6

  • Internal Clearance: C0, C3, C4

  • Cage Type: Stamped steel, machined brass

  • Operating Temperature Range: -30°C to +200°C (standard)

  • Application Suitability: Heavy radial shock loads, self-aligning (accommodates misalignment), high axial loads in both directions.

 

5. Thrust Bearings (Ball & Roller)

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  • Type: Ball thrust, Cylindrical roller thrust, Spherical roller thrust

  • Material: High-carbon chromium steel (standard)

  • Dimensions (mm): Bore (d), Outer Diameter (D), Height (H), Washer dimensions

  • Load Capacity (kN): Dynamic (Ca), Static (C0a) – Axial load capacity only

  • Speed Rating (RPM): Moderate speeds (Ball), Lower speeds (Roller)

  • Precision Class: P0, P6

  • Operating Temperature Range: -30°C to +120°C

  • Application Suitability: Purely axial loads, often for vertical shafts.

 

6. Plain Bearings (Bushings)

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  • Type: Sleeve, Flange, Thrust Washer

  • Material: Bronze (sintered, cast), Polymer (acetal, nylon, PTFE composites), Bimetal, Graphite

  • Dimensions (mm): Inner Diameter (ID), Outer Diameter (OD), Length (L), Flange Diameter (FD), Flange Thickness (FT)

  • Load Capacity (MPa/kN): Static, Dynamic – Pressure-velocity (PV) limits crucial for polymer types

  • Lubrication: Self-lubricating (oil-impregnated, polymer), pre-lubricated, external lubrication required

  • Operating Temperature Range: -200°C to +300°C (material dependent)

  • Wear Resistance: Coefficient of friction, wear rate

  • Application Suitability: Sliding or oscillating motion, low speed, high load, dirty environments (certain types), chemical resistance.

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Don't compromise on performance or reliability. Acquirex Group is your trusted partner for high-precision engineering components.

Our team of experts is ready to assist you in selecting the ideal bearing for your specific application, ensuring seamless integration and long-term operational success.

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High-quality bearings from Acquirex Group, featuring robust designs and accompanied by blue and yellow lubricants for optimal performance and reliability.
High-quality bearings from Acquirex Group, featuring robust designs and accompanied by blue and yellow lubricants for optimal performance and reliability.

Contact Acquirex Group today for a comprehensive quotation and place your orders! Let us help you drive your innovations forward.


📞 +27 11 568 0444 / +27 78 290 4523 | 📧 sales@acquirexroup.com | 🌐 www.acquirexgroup.com


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