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Super precision bearing FAG HCB71930-E-T-P4S
- Manufacturer Part Number
- HCB71930-E-T-P4S
- Brand
- FAGOfficial brand
- Category
- Bearings
- Subcategory
- Special bearings
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Description
FAG HCB71930-E-T-P4S is a special bearing reference, within Bearings. Request a quote for HCB71930-E-T-P4S via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
FAG HCB series super precision bearings are components designed for applications where running accuracy, rigidity and repeatability are critical. They are used in machine tool spindles, measuring equipment, instrumentation and high-demand positioning systems. MR Accesorios Industriales supplies this FAG line, an official brand it represents, and helps you identify the correct part number for your equipment. If you have the model on hand, write to us on WhatsApp and we will quote you promptly.
The designation of these bearings is read in blocks. The letters HCB identify the super precision series with a specific high-capacity design. The number that follows, as in HCB7000-E-T-P4S or HCB7001-E-T-P4S, indicates the bearing size within the series. The suffix E corresponds to an optimized version, while T indicates a cage made of synthetic or textile material depending on the version. The suffix P4S defines the precision class, which in this case is high accuracy. Each combination of letters and numbers results in a unique part number that should be verified before requesting a quote.
These bearings are used in spindles of milling machines, grinding machines and machining centers, where speed and precision are decisive. They also appear in measuring heads, rotary tables, optical equipment and numerical control systems. In Argentina, we find them in high-end machining shops, automotive plants, metrology laboratories and special machinery factories. Their ability to maintain minimal internal clearance and high axial and radial rigidity makes them suitable for demanding work cycles, with temperature variations and combined loads.
To select the correct bearing, take into account the type of load, the rotation speed and the required precision level. The P4S class implies very tight dimensional and running tolerances, so mounting must be carried out in a controlled environment, with suitable tools and trained personnel. Lubrication must be specific for high speeds, and sealing or guards prevent contamination. Alignment between the shaft and the housing is critical: any deviation affects service life. If the original equipment comes with a similar part number, it is advisable to compare the complete designation before replacing it.
Regarding equivalences, super precision bearings from other brands may have similar dimensions, but the precision class and internal design are not always interchangeable. It is not enough for the inner and outer diameters to match: you must verify the load capacity, the cage type and the internal clearance. For replacements, the safest approach is to start from the original part number and compare it with the complete designation. If you cannot find the exact part number, write to us on WhatsApp and we will help you identify the right option within the FAG line we supply.
MR Accesorios Industriales has more than 80 years of experience in the sector and supplies FAG bearings for industrial applications. If you need a quote for an HCB series super precision bearing, send us the complete part number on WhatsApp, such as HCB7002-E-T-P4S or the one shown on your equipment. We reply promptly with the information you need to move forward.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the HCB designation mean in these bearings?
- HCB identifies a series of super precision bearings with an internal design optimized for high capacity and rigidity. The number that follows indicates the size, and suffixes such as E, T and P4S define the version, cage and precision class. Each complete part number is unique.
- Can they be replaced by bearings from another brand?
- Not always. Although the main dimensions may match, the precision class, internal clearance and cage type may vary. For a safe replacement, you must compare the complete designation and verify the operating conditions. Consult us with the original part number.
- How do I request a quote for an HCB bearing?
- Write to us on WhatsApp with the complete part number you need, for example HCB7005-E-T-P4S. If you do not have it, send us a photo or the equipment data and we will help you identify it. We quote you promptly.

