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

Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision side angle
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision cross section
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision dimension drawing
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision side angle
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision cross section
Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision 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

Angular Contact Ball Spindle Bearing B71928-C-T-P4s-UL for Machine Tools Precision

Model B71928-C-T-P4s-UL ● IN STOCK

<p>Ensure your machine tool maintains peak precision and high-speed performance with the <strong>FAG spindle bearing</strong> B71928-C-T-P4s-UL, a precision angular contact ball bearing engineered for critical spindle applications. Its 15° contact angle (C) delivers exceptional axial load capacity while minimizing friction, making it ideal for high-rpm operations where accuracy and stability are non-negotiable.</p><ul><li>Precision grade P4s (ISO standard) ensures consistent running accuracy, reducing vibration and extending tool life</li><li>Directly sourced from official FAG distribution channels, guaranteeing full traceability and batch consistency for seamless production scheduling</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 machine tool maintains peak precision and high-speed performance with the FAG spindle bearing B71928-C-T-P4s-UL, a precision angular contact ball bearing engineered for critical spindle applications. Its 15° contact angle (C) delivers exceptional axial load capacity while minimizing friction, making it ideal for high-rpm operations where accuracy and stability are non-negotiable.

  • Precision grade P4s (ISO standard) ensures consistent running accuracy, reducing vibration and extending tool life
  • Directly sourced from official FAG distribution channels, guaranteeing full traceability and batch consistency for seamless production scheduling

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
HS Code 8482800000

Application Industries

Industry Typical Equipment
Machine Tools CNC machine tool spindles, precision machining centers, high-speed lathes
Automation Robotic arms, precision linear motion systems
Aerospace Aircraft component manufacturing equipment
Medical Devices Precision surgical instrument manufacturing machinery

Prevent Production Downtime with Genuine B71928-C-T-P4s-UL FAG Spindle Bearings

CNC machine tool operators know the frustration of unexpected spindle failures—gray market bearings often fail prematurely, causing production line shutdowns and quality defects. Multi-tier distribution channels stretch lead times by 30–50%, making it impossible to align with tight production schedules. Without proper technical support, even the right bearing model can underperform due to incorrect installation or lubrication.

Original FAG Spindle Bearings in Stock for Immediate Delivery

As an official authorized Schaeffler FAG distributor, we provide genuine FAG B71928-C-T-P4s-UL angular contact ball bearings with full traceability documentation. Our P4/P2 grade stock ensures you get the precision required for high-speed machine tool spindles without waiting for factory lead times. Each bearing undergoes testing compliant with ISO 9001 and DIN standards before shipment, guaranteeing consistent performance from the first installation.

Engineered for High-Speed Machine Tool Spindles

This FAG spindle bearing excels in applications requiring high running accuracy and dynamic stability. With a 15° contact angle (C design) and P4s precision grade, it delivers exceptional radial and axial load capacity at speeds up to the bearing’s limiting range—critical for CNC machining centers producing complex components. The single-row angular contact design allows for precise preload adjustment, ensuring minimal runout and maximum tool life in precision cutting operations.

Technical Features That Ensure Machining Precision

The B71928-C-T-P4s-UL’s P4s precision class minimizes radial and axial runout, directly reducing workpiece surface finish variations. Its steel cage design enhances rigidity under high centrifugal forces, maintaining bearing integrity at elevated speeds. The contact angle configuration balances axial and radial load distribution, a key factor in spindle longevity when machining hard metals. Our precision testing system verifies each bearing’s geometric accuracy, ensuring compliance with the strict tolerances required for aerospace and medical component manufacturing.

Why Genuine FAG Bearings Lower Total Manufacturing Costs

Counterfeit angular contact bearings may cost less upfront, but they typically fail within 30–50% of the expected service life of genuine FAG products. A single spindle failure can cause $10,000+ in production losses from downtime, scrap parts, and emergency repairs. Our genuine bearings come with complete traceability documentation, eliminating customs clearance delays and quality liability disputes—common issues with gray market suppliers. By investing in authentic FAG spindle bearings, manufacturers reduce unplanned maintenance and extend mean time between failures (MTBF) by an average of 40%.

Our Commitment to Reliable Bearing Supply

With 40+ countries served and core markets in Germany, Italy, the US, Japan, and South Korea, we have established a global reputation for reliable OEM bearing supply. Our precision application engineering team provides free model selection assistance based on your specific spindle parameters and operating conditions. We maintain dedicated inventory for high-demand models like the B71928-C-T-P4s-UL, enabling shockproof precision logistics and on-time delivery. Every order includes a dedicated account manager who tracks your bearing’s journey from our warehouse to your production floor, with real-time visibility at every step.

Packaging & Shipping

  • Original FAG packaging with manufacturer’s certification and traceability documents
  • Shockproof palletizing to prevent damage during transportation
  • Express delivery options via DHL, FedEx, or UPS for urgent requirements
  • Real-time logistics tracking provided for all shipments
  • Flexible order quantities—from single units for emergency repairs to bulk OEM supply

Get Your B71928-C-T-P4s-UL Bearing Shipped Today

Don’t let spindle downtime disrupt your production schedule. Send us your B71928-C-T-P4s-UL bearing requirements, including quantity and application details, and we’ll issue a formal quotation with availability confirmation within 24 hours. Our in-stock inventory means you can have the bearing delivered in days, not weeks—keeping your CNC machines operational and your production on track.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

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

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

A: Provide your spindle model, operating speed, and load parameters. Our precision application engineering team will verify compatibility and provide installation guidance.

Q: What is your warranty policy?

A: We stand behind the quality of all FAG products. Manufacturing defects are covered under the original FAG warranty terms, with unconditional replacement for verified issues.

Q: What is the minimum order quantity?

A: We accept orders for 1 unit, supporting emergency repair needs as well as large-scale OEM production requirements.

Q: How quickly can you ship this bearing?

A: In-stock bearings are typically shipped within 3 business days. Express shipping options are available for urgent delivery needs.

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

A: Each bearing includes FAG’s original packaging with security features, laser-etched part numbers, and batch codes that can be verified through official channels. We also provide complete traceability documentation with every order.

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-C-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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