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

High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications side angle
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications cross section
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications dimension drawing
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications side angle
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications cross section
High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications dimension drawing
FAG Genuine P4 Class
ISO 9001 · DIN 620
AUTHORIZED
Schaeffler
SHIPS IN
3-5 Days
RESPONSE
≤ 24H
FAG Genuine · Authorized Cylindrical Roller Bearing P4 / P2

High Precision FAG B71904-E-T-P4s-UL Spindle Bearing for Machine Tool Applications

Model B71904-E-T-P4s-UL ● IN STOCK

<p>Ensure your machine tool spindle achieves uncompromising running accuracy with the high precision FAG B71904-E-T-P4s-UL spindle bearing, designed to minimize vibration and extend tool life in critical CNC applications. As an official Schaeffler FAG distributor, we deliver 100% traceable OEM-quality bearings with full compliance documentation, eliminating customs clearance delays and quality disputes.</p><ul><li>Engineered with a 15° contact angle (E design) to handle combined radial and axial loads at high speeds</li><li>P4s precision grade ensures consistent performance across batches, critical for maintaining tight manufacturing tolerances</li><li>Includes specialized shockproof logistics packaging to protect bearing integrity during transit</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 spindle achieves uncompromising running accuracy with the high precision FAG B71904-E-T-P4s-UL spindle bearing, designed to minimize vibration and extend tool life in critical CNC applications. As an official Schaeffler FAG distributor, we deliver 100% traceable OEM-quality bearings with full compliance documentation, eliminating customs clearance delays and quality disputes.

  • Engineered with a 15° contact angle (E design) to handle combined radial and axial loads at high speeds
  • P4s precision grade ensures consistent performance across batches, critical for maintaining tight manufacturing tolerances
  • Includes specialized shockproof logistics packaging to protect bearing integrity during transit

Description

Product Specifications

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

Application Industries

Industry Typical Equipment
Machine Tools CNC machining centers, lathes, grinders, milling machines
Automation Precision rotary tables, robotic arms, linear motion systems
Medical Devices Surgical equipment, diagnostic imaging machines
Aerospace Aircraft component manufacturing tools

Eliminate Spindle Failures with Genuine FAG B71904-E-T-P4s-UL Spindle Bearings

Machine tool operators know the frustration of unexpected spindle downtime—costing thousands in lost production and emergency repairs. Counterfeit bearings often fail prematurely under high-speed conditions, while multi-tier distributors struggle to maintain batch consistency for critical precision applications. These issues aren’t just inconvenient; they directly impact your machining accuracy and delivery deadlines.

Genuine FAG Precision Bearings, In Stock and Traceable

As an official Schaeffler FAG distributor, we supply the high precision FAG B71904-E-T-P4s-UL spindle bearing with full traceability documentation, eliminating customs clearance delays and quality disputes. Our dedicated OEM inventory ensures P4/P2 grade stock is ready for immediate dispatch, supporting both scheduled production runs and emergency replacements. This FAG spindle bearing is engineered for the demanding requirements of machine tool spindles, where running accuracy and thermal stability are non-negotiable.

Optimized Performance in High-Speed Machining

The FAG B71904-E-T-P4s-UL spindle bearing excels in applications requiring precise radial and axial load handling at speeds up to 25,000 r/min. Its 15° contact angle design balances load distribution, making it ideal for horizontal and vertical spindles in CNC machines. Whether machining hardened steel or aerospace alloys, this bearing maintains dimensional stability under varying cutting forces, reducing tool wear and improving surface finish quality.

Technical Features That Define Reliability

The P4s precision class of this FAG machine tool spindle bearing ensures minimal radial runout (≤3 μm) and axial endplay (≤5 μm), critical for maintaining tight tolerances in precision machining. The steel cage design enhances rigidity and heat dissipation, while the optimized internal geometry reduces friction torque by up to 12% compared to standard bearings. These features translate to longer spindle life, reduced energy consumption, and consistent performance across production batches.

Why Authenticity Matters for Your Bottom Line

Non-genuine spindle bearings may cost 30% less upfront, but they typically fail within 300 operating hours—compared to 8,000+ hours for authentic FAG bearings. A single spindle failure can halt production for 48+ hours, resulting in $15,000–$40,000 in lost revenue for mid-sized machine shops. Our ISO 9001/DIN compliant testing ensures each bearing meets FAG’s strict quality standards, protecting your investment in equipment and production schedules.

Our Commitment to Your Production Success

With 12+ years as an authorized FAG distributor, we’ve served 40+ countries, supporting CNC machine tool OEMs and high-end manufacturers. Our precision application engineering team provides free model selection based on your spindle specifications, while shockproof logistics ensure bearings arrive in factory-sealed condition. We offer small-batch trial orders for quality verification, and dedicated account managers track every order from warehouse to your production floor—providing real-time visibility and technical support when you need it.

Packaging & Shipping

  • Original FAG packaging with serial number traceability and authenticity certificates
  • Reinforced carton pallet for shock protection during transit
  • 3–7 business days delivery for in-stock items
  • DHL, FedEx, or UPS shipping options with real-time tracking
  • Minimum order quantity of 1 piece, supporting emergency repairs and small-batch production

Secure Your Spindle Performance Today

Don’t let bearing issues compromise your machining precision or production deadlines. Send us your spindle model, operating speed, and required quantity, and we’ll provide a formal quotation with full technical specifications within 24 hours. With our ready stock and expert support, you can minimize downtime and keep your machines running at peak efficiency.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

A: Yes, we are an official authorized Schaeffler FAG distributor. Every bearing comes with original packaging, serial number traceability, and brand authorization documentation.

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

A: Provide your spindle model, bore diameter, and operating parameters (speed, load direction), and our engineering team will verify compatibility at no cost.

Q: What is the warranty policy?

A: All bearings are covered by FAG’s original manufacturer warranty, which includes replacement for manufacturing defects.

Q: What is the minimum order quantity?

A: We accept orders starting from 1 piece, ideal for emergency repairs or small-batch production needs.

Q: How long does shipping take?

A: In-stock bearings ship within 3–7 business days via DHL, FedEx, or UPS, with tracking information provided upon dispatch.

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

A: Each bearing includes FAG’s laser-etched part number, holographic packaging label, and batch code, which can be cross-verified with Schaeffler’s official database.

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
B71904-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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