P4 / P2 In Stock · New arrivals: 7020-C-T-P4S spindle bearings

High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools side angle
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools cross section
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools dimension drawing
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools side angle
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools cross section
High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools dimension drawing
FAG Genuine P4 Class
ISO 9001 · DIN 620
AUTHORIZED
Schaeffler
SHIPS IN
3-5 Days
RESPONSE
≤ 24H
FAG Genuine · Authorized Angular Contact Bearing P4 / P2

High Precision FAG B71928-E-T-P4s-UL Angular Contact Ball Bearing for CNC Machine Tools

Model B71928-E-T-P4s-UL ● IN STOCK

<p>Ensure your CNC machine tool spindle achieves uncompromising running accuracy with the <strong>FAG B71928-E-T-P4s-UL</strong> high precision angular contact ball bearing. Engineered with a 25° contact angle (E design) and P4s precision grade, this spindle bearing minimizes vibration at high speeds, extending tool life and reducing machining errors for critical manufacturing operations.</p><ul><li>Directly sourced from Schaeffler FAG authorized distributor with full traceability documentation to streamline customs clearance and quality compliance</li><li>UL design features optimized internal geometry for enhanced axial load capacity, ideal for heavy-duty CNC spindle applications</li><li>Comes with professional installation guidance to eliminate technical guesswork and maximize bearing performance in your specific working conditions</li></ul>

Precision Class
P4/P2
Bore Ø (d)
17 mm
Outer Ø (D)
40 mm
Dyn / Stat Load
9.8 kN / 6.55 kN
  • 100% Original FAG
  • Shockproof Packaging
  • DIN / ISO Certified
  • Engineering Support
01 / Specifications

Complete Technical
Parameter Table

All values are factory-certified per Schaeffler FAG datasheet and conform to DIN 620 / ISO 492 precision standards. Custom tolerance packages and matched sets available on request.

Dimensions

Bore (d)17 mm
Outer Ø (D)40 mm
Width (B)12 mm
Contact Angle (α)15°
Weight0.065 kg

Performance

Dynamic Load (Cr)9.8 kN
Static Load (C0r)6.55 kN
Limit Speed (Grease)22,000 rpm
Limit Speed (Oil)34,000 rpm
Runout (P4)≤ 3 µm

Material & Construction

Ring Material100Cr6 Steel
CageTB Phenolic
SealingOpen
LubricationGrease / Oil
Preload ClassLight (L)

Standards & Certification

Precision StandardDIN 620 / ISO 492
Quality SystemISO 9001
OriginSchaeffler · Germany
DocumentationCoC + Test Report
Warranty12 Months

Product Description

Ensure your CNC machine tool spindle achieves uncompromising running accuracy with the FAG B71928-E-T-P4s-UL high precision angular contact ball bearing. Engineered with a 25° contact angle (E design) and P4s precision grade, this spindle bearing minimizes vibration at high speeds, extending tool life and reducing machining errors for critical manufacturing operations.

  • Directly sourced from Schaeffler FAG authorized distributor with full traceability documentation to streamline customs clearance and quality compliance
  • UL design features optimized internal geometry for enhanced axial load capacity, ideal for heavy-duty CNC spindle applications
  • Comes with professional installation guidance to eliminate technical guesswork and maximize bearing performance in your specific working conditions

Description

Product Specifications

Parameter Details
Model NO. FAG Spindle Bearing
Precision P4, P4s, P2 (ISO)
Contact Angle (α) 15° (C), 25° (E)
Material Steel
Trademark FAG
Origin Jiangsu China
HS Code 8482800000

Application Industries

Industry Typical Equipment
Manufacturing CNC Machine Tools, Spindles
Automation Precision Machining Centers
Aerospace Component Manufacturing Equipment

Eliminate CNC Downtime with FAG B71928-E-T-P4s-UL Angular Contact Ball Bearings

CNC machine tool operators know the cost of spindle failure—unplanned downtime, scrapped workpieces, and missed deadlines. Gray market bearings often fail prematurely due to substandard materials, while multi-tier distributors struggle to maintain consistent delivery times. When your production line depends on precision, these risks aren’t just inconvenient—they directly impact your bottom line.

Genuine FAG Spindle Bearings, In Stock and Traceable

As an official authorized Schaeffler FAG distributor, we supply the FAG B71928-E-T-P4s-UL precision angular contact ball bearing directly from the brand’s supply chain. This P4 grade bearing with a 25° contact angle is engineered for high-speed CNC spindles, where running accuracy and thermal stability are critical. Our dedicated OEM inventory ensures we can fulfill orders without the delays of traditional distribution channels.

Engineered for High-Speed CNC Spindle Performance

The FAG B71928-E-T-P4s-UL excels in applications requiring precise radial and axial load handling at elevated speeds. Its design minimizes friction and heat generation, making it ideal for continuous-duty CNC machining centers. Whether cutting hardened steel or aluminum alloys, this bearing maintains tight tolerances, reducing vibration and improving surface finish quality in precision manufacturing operations.

Technical Features That Drive CNC Productivity

The P4/P4s precision grade of this bearing ensures minimal radial runout and axial clearance, critical for maintaining spindle accuracy in high-precision machining. Its 25° contact angle optimizes load distribution, balancing radial stiffness with axial load capacity—essential for vertical or horizontal spindle configurations. Constructed from high-grade steel, the bearing resists wear under heavy cutting loads, extending maintenance intervals and reducing tool change downtime. The T-type cage design enhances lubricant distribution, further stabilizing performance during extended operation.

Why Authenticity Matters for Your CNC Operation

Counterfeit bearings may cost less upfront, but they often lack the material purity and manufacturing precision of genuine FAG products. A single premature bearing failure can cost thousands in production losses, not to mention the time spent disassembling and replacing damaged spindle components. Our bearings come with full traceability documentation, ensuring compliance with ISO 9001 and DIN standards—critical for export-oriented manufacturers facing strict customs and quality audits.

Your Trusted Partner for Precision Bearing Supply

With over a decade serving high-end manufacturing across 40+ countries, we bring unmatched expertise in FAG precision bearings. Our precision testing system verifies every bearing before shipment, ensuring compliance with OEM specifications. A dedicated application engineering team provides free model selection support based on your CNC spindle parameters, while shockproof logistics packaging prevents damage during transit. We offer small-batch trial orders and long-term supply agreements, adapting to both emergency repairs and scheduled production needs.

Packaging & Shipping

  • Original FAG packaging with brand authentication labels
  • Reinforced carton pallet for international shipping protection
  • 3-7 business days delivery for in-stock items
  • Global logistics options including DHL, FedEx, and air freight
  • 1 piece minimum order quantity, supporting emergency repairs

Secure Your CNC Spindle Performance Today

Don’t let bearing issues disrupt your production schedule. Send us your FAG B71928-E-T-P4s-UL order quantity and spindle specifications, and we’ll provide a formal quotation with traceability certificates within 24 hours. With our stock on hand, you can minimize downtime and keep your CNC machines running at peak precision.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

A: Yes, we are an official authorized Schaeffler FAG distributor. Every bearing comes with full traceability documentation and brand authorization certificates.

Q: How do I confirm this bearing fits my CNC spindle?

A: Provide your spindle model or technical parameters (speed, load, operating temperature), and our application engineering team will verify compatibility at no cost.

Q: What is your warranty policy?

A: We adhere to FAG’s original equipment warranty standards, covering manufacturing defects with unconditional replacement.

Q: What is the minimum order quantity?

A: We accept orders for 1 piece, supporting both emergency repairs and small-batch production needs.

Q: How quickly can you ship?

A: In-stock bearings are shipped within 3-7 business days via your preferred logistics provider (DHL, FedEx, etc.).

Q: How can I verify the bearing’s authenticity?

A: Each bearing includes FAG’s original packaging with security labels, laser-etched part numbers, and traceability documents that can be cross-verified through official channels.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

02 / Applications

Compatible with
High-End Manufacturing.

Engineered for precision-critical environments where micron-level runout, thermal stability and high rotational speeds determine product quality. Trusted across Germany, Italy, the US, Japan and South Korea.

CNC Machine Tools

High-speed spindles for milling, grinding and turning centers requiring P4 runout.

SPINDLE · OEM

Wind Power Gearboxes

Heavy-duty rotor and main shaft positions demanding long service life.

GEARBOX · MW

Medical Devices

Imaging equipment, surgical robotics and diagnostic systems with quiet running needs.

CLEAN · QUIET

Semiconductor & Aerospace

Wafer handling, lithography stages, and aerospace actuators with P2 demands.

P2 · ULTRA
03 / Engineering

Technical Deep Dive.
Precision Without Compromise.

Every FAG bearing we ship has passed the full Schaeffler quality protocol -- from raw material spectrum analysis to dynamic runout verification -- backed by our shockproof handling chain that preserves micron tolerances door-to-door.

/ 01 STANDARD

DIN 620 Compliance

Full conformance to German DIN 620 dimensional and tolerance standard, with traceable measurement records on every batch.

  • ISO 492 cross-mapped
  • Bore tolerance ±0.004 mm
  • CoC included per shipment
/ 02 PRECISION

P4 / P2 Class Verification

Each bearing undergoes runout testing on calibrated rigs. P4: ≤3 µm radial runout. P2: ≤1.5 µm -- ready for ultra-precision spindles.

  • Climate-controlled QC lab
  • Vibration analysis report
  • Matched-set pairing service
/ 03 LOGISTICS

Shockproof Handling

Vibration-controlled foam cradles, climate-monitored containers and dedicated freight forwarders -- your tolerances arrive intact.

  • Sealed VCI corrosion barrier
  • Shock & humidity sensors
  • 40+ countries delivered
04 / Trust

Genuine Traceability.
Warranty Commitment.

Every unit is traceable from the Schaeffler factory through our Shanghai authorized hub to your facility. Counterfeit-free guarantee backed by a 12-month performance warranty.

Verify Authenticity

Schaeffler Authorized Channel

Direct supply contract with Schaeffler Group -- every product carries original factory packaging and certification.

Full Documentation Package

Certificate of Conformity, dimensional inspection report, runout test data, and origin declaration -- included with every shipment.

12-Month Performance Warranty

Full warranty against material defect and manufacturing fault under specified operating conditions, plus engineering support.

Shockproof Precision Logistics

Vibration-dampened cradles, VCI anti-corrosion sealing, climate-monitored containers -- protecting micron tolerances across 40+ countries.

PACKAGING

Shockproof Precision Pack

VCI corrosion-inhibitor barrier, custom-cut foam cradle, sealed FAG original box, vibration-dampening outer carton with shock indicator label.

SHIPPING

Climate-Controlled Freight

DHL / FedEx / UPS express, sea/air consolidation, EXW · FOB · CIF · DDP terms. Climate and humidity sensors monitor critical batches end-to-end.

LEAD TIME

Stock Items: 3-5 Days

In-stock P4/P2 grades dispatched within 3 business days. Custom matched sets and special tolerances: 2-4 weeks. Express priority available.

06 / FAQ

Frequently Asked.

Common technical and procurement questions. For specific applications, our engineers respond within one business day.

How do I confirm this FAG bearing is 100% genuine?

Every shipment includes Certificate of Conformity, original Schaeffler factory packaging with serial codes, and traceable documentation. As an authorized distributor, we supply only directly from the Schaeffler Group channel.

What is the difference between P4 and P2 precision class?

P4 grade: bore tolerance ±0.004 mm, runout ≤3 µm -- suitable for high-end CNC spindles. P2 grade: ±0.0025 mm bore, runout ≤1.5 µm -- used in semiconductor stages and ultra-precision aerospace applications. Both conform to DIN 620 / ISO 492.

How are bearings packed for international shipping?

VCI corrosion-inhibitor wrap, custom foam cradle, sealed FAG original box, then vibration-dampening outer carton with shock indicator label. Climate and humidity sensors are added for critical batches to ensure micron tolerances are preserved across 40+ countries.

Do you offer matched sets and custom tolerance packages?

Yes. We provide DUL / DUM / DBL matched-pair configurations, custom preload classes, and tailored tolerance bands aligned with your spindle specifications. Lead time for special configurations is typically 2-4 weeks.

What is the typical lead time and minimum order quantity?

In-stock P4/P2 items: 3-5 business days dispatch. No fixed MOQ for stock items -- single-piece orders welcome. Custom matched sets and special configurations: 2-4 weeks. Express priority shipping available globally.

Do you provide installation guidance and engineering support?

Our application engineering team provides installation procedures, lubrication selection, preload calculation, failure analysis, and on-call technical guidance throughout the product lifecycle -- included with every order.
07 / Inquire

Request a quote for
B71928-E-T-P4s-UL

Submit your specification -- quantity, target precision class, and application context. Our engineers respond within 24 hours with availability, lead time and recommended configuration.

Room 328, Building 1, No. 858 Fenggao Road,
Fengxian District, Shanghai, China
Quotation Request Form ● ≤ 24H REPLY
SECURE · NO SPAM · ENGINEER REPLY
Schaeffler Authorized Distributor ISO 9001 · DIN 620

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