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

High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle side angle
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle cross section
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle dimension drawing
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle side angle
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle cross section
High Precision FAG B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle 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 B71904-C-T-P4s-UL Angular Contact Ball Bearing for Machine Tool Spindle

Model B71904-C-T-P4s-UL ● IN STOCK

<p>Boost your machine tool spindle's performance with the <strong>FAG B71904-C-T-P4s-UL angular contact ball bearing</strong>, engineered to deliver exceptional running accuracy and stability for high-speed precision operations. As an official Schaeffler FAG distributor, we ensure every bearing comes with complete traceability documentation and meets strict ISO 9001 standards, eliminating compliance hurdles in global manufacturing.</p><ul><li>P4s precision grade minimizes vibration at critical speeds, extending spindle life and reducing maintenance downtime</li><li>15° contact angle optimized for axial load handling in CNC machining centers, ensuring consistent cutting precision</li><li>Direct OEM supply chain guarantees 30-50% faster lead times compared to traditional multi-tier distribution</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

Boost your machine tool spindle’s performance with the FAG B71904-C-T-P4s-UL angular contact ball bearing, engineered to deliver exceptional running accuracy and stability for high-speed precision operations. As an official Schaeffler FAG distributor, we ensure every bearing comes with complete traceability documentation and meets strict ISO 9001 standards, eliminating compliance hurdles in global manufacturing.

  • P4s precision grade minimizes vibration at critical speeds, extending spindle life and reducing maintenance downtime
  • 15° contact angle optimized for axial load handling in CNC machining centers, ensuring consistent cutting precision
  • Direct OEM supply chain guarantees 30-50% faster lead times compared to traditional multi-tier distribution

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
Manufacturing CNC Machine Tools, Precision Machining Centers
Aerospace Aircraft Component Machining Equipment
Medical Devices High-Precision Medical Instrumentation
Semiconductor Wafer Processing Machinery

Eliminate Spindle Downtime with FAG B71904-C-T-P4s-UL Angular Contact Ball Bearings

Machine tool operators know the frustration of unexpected spindle failures—hours of production lost, emergency maintenance costs, and missed delivery deadlines. Counterfeit bearings often fail prematurely under high-speed conditions, while multi-tier distributors struggle to maintain consistent batch quality for precision applications. These issues aren’t just inconvenient; they directly impact your bottom line.

Genuine FAG Precision Bearings, Ready for Immediate Shipment

As an official authorized Schaeffler FAG distributor, we provide the FAG B71904-C-T-P4s-UL angular contact ball bearing with full traceability documentation, ensuring you receive authentic components every time. Our dedicated OEM service includes sufficient P4/P2 grade stock, so your machine tool spindle doesn’t wait for parts. Each bearing undergoes precision testing compliant with ISO 9001 and DIN standards before shipment.

Engineered for High-Speed Spindle Performance

The FAG B71904-C-T-P4s-UL is specifically designed for machine tool spindles operating at critical speeds, where running accuracy directly affects machining precision. With a 15° contact angle, this high precision spindle bearing efficiently handles combined radial and axial loads, maintaining stability even during rapid acceleration and deceleration cycles. Its optimized internal geometry reduces heat generation, extending both bearing life and maintenance intervals.

Technical Specifications That Define Reliability

Precision class P4s ensures minimal radial runout and axial clearance, critical for achieving tight machining tolerances. The bearing’s steel construction provides exceptional rigidity under load, while the 15° contact angle configuration balances axial stiffness and rotational speed capabilities. These features collectively contribute to consistent performance in demanding applications like CNC lathes and vertical machining centers, where spindle vibration can compromise workpiece quality.

Avoid Hidden Costs of Substandard Bearings

Choosing non-authorized渠道 risks more than just product quality—counterfeit bearings lack proper material heat treatment, leading to premature fatigue and potential spindle damage. The average CNC machine downtime costs exceed $500 per hour, far outweighing any initial savings from gray-market purchases. Our FAG B71904 bearing comes with complete precision certification, ensuring compliance with export documentation requirements and eliminating customs clearance delays.

Why Global Manufacturers Trust Our Supply Chain

With 40+ countries served and core clients including CNC machine tool OEMs and aerospace manufacturers, our vertical distribution model eliminates unnecessary intermediaries. We maintain dedicated inventory for high-demand precision bearings, supporting both small-batch trials and large-scale OEM production. Our precision application engineering team provides free model selection assistance based on your specific working conditions, while shockproof logistics ensure components arrive in factory-fresh condition.

Packaging & Shipping

  • Original FAG packaging with serial number verification
  • Shockproof carton pallet packaging for international transport
  • 3-7 business days delivery for in-stock items
  • Flexible shipping via DHL, FedEx, UPS, air, or sea freight
  • 1-piece minimum order quantity supported

Secure Your Spindle Performance Today

Don’t let bearing issues disrupt your production schedule. Send us your FAG B71904-C-T-P4s-UL quantity requirements and spindle operating parameters—our team will confirm compatibility and provide a formal quotation within 24 hours, including brand authorization documentation.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

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

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

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

Q: What is your warranty policy?

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

Q: What is the minimum order quantity?

A: We accept orders starting from 1 piece, supporting both emergency repairs and scheduled maintenance.

Q: How long does shipping take?

A: In-stock bearings ship within 3-7 business days via your preferred carrier (DHL, FedEx, UPS, air, or sea freight).

Q: How can I verify bearing authenticity?

A: Each bearing includes FAG’s original packaging with防伪标签 and laser marking. We provide full traceability documents for cross-verification on Schaeffler’s 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
B71904-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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