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

Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools side angle
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools cross section
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools dimension drawing
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools side angle
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools cross section
Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um 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

Super Precision Angular Contact Ball Spindle Bearing FAG B71904-C-T-P4s-Um for CNC Machine Tools

Model B71904-C-T-P4s-Um ● IN STOCK

<p>Enhance your CNC machine tool's spindle performance with the <strong>FAG B71904-C-T-P4s-Um</strong> super precision angular contact ball bearing, designed to deliver exceptional running accuracy and stability for high-speed machining operations. As an official FAG distributor, we ensure every unit comes with full traceability documentation and ISO 9001/DIN compliant precision testing, eliminating common supply chain uncertainties.</p><ul><li>15° contact angle (C design) optimizes axial load capacity while maintaining minimal friction, critical for precision tooling applications</li><li>P4s precision grade ensures consistent batch quality, reducing vibration and extending spindle service life in demanding production environments</li><li>Direct OEM supply from our dedicated inventory guarantees reliable lead times, keeping your manufacturing schedule on track without costly delays</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

Enhance your CNC machine tool’s spindle performance with the FAG B71904-C-T-P4s-Um super precision angular contact ball bearing, designed to deliver exceptional running accuracy and stability for high-speed machining operations. As an official FAG distributor, we ensure every unit comes with full traceability documentation and ISO 9001/DIN compliant precision testing, eliminating common supply chain uncertainties.

  • 15° contact angle (C design) optimizes axial load capacity while maintaining minimal friction, critical for precision tooling applications
  • P4s precision grade ensures consistent batch quality, reducing vibration and extending spindle service life in demanding production environments
  • Direct OEM supply from our dedicated inventory guarantees reliable lead times, keeping your manufacturing schedule on track without costly delays

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 Spindles
Automation High-Speed Machining Centers
Medical Devices Precision Rotary Equipment
Aerospace Component Machining Systems

Reduce CNC Downtime with FAG B71904-C-T-P4s-Um Spindle Bearings

CNC machine tool operators know the frustration of unexpected spindle failures—costing up to $5,000 per hour in production losses. Gray market bearings often fail prematurely due to poor material quality, while multi-tier distributors delay deliveries by 30–50%, disrupting production schedules. Even genuine bearings from unreliable sources may lack proper traceability documentation, leading to customs clearance delays and quality disputes.

Genuine FAG B71904 Bearings with Immediate Availability

As an official authorized FAG distributor, we eliminate these risks by providing 100% traceable FAG B71904-C-T-P4s-Um spindle bearings directly from Schaeffler’s supply chain. Our Shanghai warehouse maintains sufficient P4/P2 grade stock, ensuring your CNC machine tools get the exact super precision angular contact bearings they need without unnecessary delays. Each bearing undergoes ISO 9001 and DIN standard testing before shipment, guaranteeing consistent performance in high-speed spindle applications.

Engineered for High-Precision CNC Spindle Performance

The FAG B71904-C-T-P4s-Um is specifically designed for CNC machine tool spindles operating at high speeds with moderate radial and axial loads. Its 15° contact angle (C design) optimizes load distribution, while the P4s precision class ensures minimal runout and vibration—critical for maintaining tight machining tolerances. Whether used in vertical machining centers or horizontal lathes, this angular contact ball bearing delivers the stability required for uninterrupted production cycles.

Technical Features That Maximize Spindle Reliability

Three key specifications define the performance of the FAG B71904-C-T-P4s-Um: Precision class P4s ensures dimensional accuracy within microns, reducing spindle deflection during heavy cutting operations. The 15° contact angle balances radial and axial load capacity, making it ideal for combined load scenarios common in CNC machining. Premium steel construction provides excellent wear resistance, extending bearing life even in continuous-duty applications. These features work together to minimize maintenance requirements and maximize spindle uptime.

Why Genuine FAG Bearings Lower Total Cost of Ownership

While counterfeit bearings may offer lower upfront prices, they typically fail within 30–50% of the expected service life of genuine FAG products. A single spindle failure can cost thousands in repair parts, labor, and lost production—easily outweighing any initial savings. Our FAG B71904-C-T-P4s-Um bearings come with full traceability documentation, including batch codes and compliance certificates, ensuring you avoid customs issues and quality liability disputes. By investing in genuine components, manufacturers reduce long-term costs associated with premature failures and unplanned downtime.

Our Commitment to Reliable Bearing Supply

With over a decade of experience serving 40+ countries, we’ve built our reputation on four pillars of reliability: Official Schaeffler authorization guarantees 100% genuine FAG bearings, with each unit traceable to the original production batch. Our precision testing system, compliant with ISO 9001 and DIN standards, conducts rigorous inspections before shipment. A dedicated precision application engineering team provides free model selection and installation guidance based on your specific CNC spindle parameters. Shockproof logistics packaging ensures bearings arrive in factory-fresh condition, ready for immediate installation.

Packaging & Shipping

  • Original FAG packaging with anti-counterfeit labels and batch traceability documentation
  • Reinforced carton pallet packaging for shock and moisture protection during transit
  • 3–7 business day delivery for in-stock items to major industrial regions
  • Flexible shipping options including DHL, FedEx, UPS, air freight, and sea freight
  • Real-time tracking provided for all shipments
  • Minimum order quantity of 1 piece, supporting both emergency repairs and scheduled maintenance

Get Your FAG B71904 Spindle Bearings Today

Don’t let spindle downtime impact your production targets. Send us your bearing model list, CNC machine specifications, and required quantity, and our team will issue a formal quotation within 24 hours. With our ready stock and streamlined logistics, you can have genuine FAG B71904-C-T-P4s-Um bearings delivered when you need them—minimizing machine idle time and maximizing manufacturing efficiency.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

A: Yes, we are an official authorized Schaeffler FAG distributor. Every FAG B71904-C-T-P4s-Um bearing comes with full traceability documentation and brand authorization certificates, ensuring authenticity.

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

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

Q: What is your warranty policy?

A: All FAG bearings come with the manufacturer’s standard warranty. We provide full support for manufacturing defect claims, including replacement or refund per Schaeffler’s warranty terms.

Q: What is the minimum order quantity?

A: We accept orders for 1 piece, making us ideal for emergency repairs as well as bulk production requirements.

Q: How quickly can you ship?

A: In-stock FAG B71904-C-T-P4s-Um bearings ship within 3–7 business days via your preferred logistics method. Rush delivery options are available for urgent requirements.

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

A: Each bearing includes FAG’s original packaging with holographic labels, laser-etched part numbers, and batch codes. We also provide official authorization documents and traceability certificates upon request.

Ready to order or need a quote?
Send your bearing designation, CNC machine details, and quantity to WhatsApp +86 150 0033 3771 or email info@oemfag.com — 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-Um

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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