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

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

Model B71904-C-T-P4s ● IN STOCK

<p>Boost CNC machining precision and reduce downtime with the <strong>FAG B71904-C-T-P4s bearing</strong>, a high-performance angular contact spindle bearing engineered for critical CNC machine tool applications. As an official Schaeffler FAG distributor, we ensure 100% traceable original supply, eliminating risks of counterfeit parts and compliance issues in global shipments.</p><ul><li>P4s precision grade delivers exceptional running accuracy (ISO 9001/DIN compliant) for tight tolerance machining operations</li><li>15° contact angle (C design) optimizes axial load capacity and rigidity, enhancing spindle stability at high speeds</li><li>Dedicated account manager provides end-to-end support from technical selection to shockproof logistics, ensuring on-time delivery aligned with your production schedule</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 CNC machining precision and reduce downtime with the FAG B71904-C-T-P4s bearing, a high-performance angular contact spindle bearing engineered for critical CNC machine tool applications. As an official Schaeffler FAG distributor, we ensure 100% traceable original supply, eliminating risks of counterfeit parts and compliance issues in global shipments.

  • P4s precision grade delivers exceptional running accuracy (ISO 9001/DIN compliant) for tight tolerance machining operations
  • 15° contact angle (C design) optimizes axial load capacity and rigidity, enhancing spindle stability at high speeds
  • Dedicated account manager provides end-to-end support from technical selection to shockproof logistics, ensuring on-time delivery aligned with your production schedule

Description

Product Specifications

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

Application Industries

Industry Typical Equipment
Manufacturing CNC Machine Tools, Precision Spindles
Aerospace Aircraft Component Machining Centers
Medical Devices Precision Surgical Instrument Manufacturing Equipment
Semiconductor Wafer Processing Machinery

Stop CNC Spindle Failures — Genuine FAG B71904-C-T-P4s Angular Contact Bearings In Stock

CNC machine tool operators know the cost of unexpected spindle downtime: unmet production deadlines, emergency repair fees, and lost revenue from idle equipment. Many face counterfeit bearings that fail prematurely, or multi-tier distributors with 30–50% longer lead times that disrupt production schedules. When precision matters most, settling for unreliable supply chains isn’t an option.

Genuine FAG Precision Bearings, Delivered When You Need Them

As an official Schaeffler FAG distributor, we provide the FAG B71904-C-T-P4s angular contact spindle bearing — a critical component for CNC machine tool spindles requiring high running accuracy. Our direct brand access ensures every bearing comes with complete traceability documentation, eliminating customs clearance obstacles and quality disputes. With sufficient P4/P2 grade stock, we support both small-batch trials and large-scale OEM orders, aligning with your production scheduling needs.

Engineered for High-Speed CNC Spindle Performance

The FAG B71904-C-T-P4s bearing excels in high-speed, precision applications where rotational accuracy directly impacts machining quality. With a 15° contact angle (C design), it efficiently handles radial and axial loads common in CNC spindle operations, maintaining stability even at maximum operating speeds. This makes it ideal for precision grinding, milling, and turning centers where minimal runout and consistent performance are non-negotiable.

Technical Details That Define Spindle Reliability

Three key specifications set this bearing apart for CNC applications: its P4s precision grade ensures tight dimensional tolerances, reducing vibration and noise during high-speed rotation. The steel construction provides robust durability under continuous operation, while the angular contact design optimizes load distribution to prevent premature fatigue. Together, these features deliver the consistent performance required for precision machining, where even microns of deviation affect part quality.

The Hidden Cost of Non-Genuine Bearings

Choosing gray-market bearings may seem cost-effective initially, but the true cost emerges when counterfeit products fail. A single spindle breakdown from substandard bearings can cost thousands in repair parts, labor, and lost production — often far exceeding the savings from cheaper alternatives. Our ISO 9001 & DIN compliant testing system verifies every bearing before shipment, ensuring batch stability and eliminating the risk of hidden defects that lead to unplanned downtime.

Why CNC Manufacturers Trust Our Bearing Supply

Our 40+ country client base, including leading CNC machine tool OEMs, relies on four core strengths: official original supply with full traceability documentation, dedicated precision application engineering teams providing installation guidance, shockproof logistics that protect bearing integrity during transport, and customized OEM solutions tailored to specific production needs. Every order is managed by a dedicated account manager, offering real-time visibility from warehouse to delivery.

Packaging & Shipping

  • Original FAG packaging with manufacturer certification and traceability documents
  • Reinforced carton pallet packaging to prevent damage during transit
  • 3–7 business day delivery for in-stock items
  • Flexible shipping options: DHL, FedEx, UPS, air freight, and sea freight
  • 1 piece minimum order quantity, supporting both emergency repairs and scheduled maintenance

Get Your CNC Spindle Bearings Shipped Today

Don’t let bearing supply issues slow your production. Send us your FAG B71904-C-T-P4s bearing requirements, including quantity and application details, and we’ll provide a formal quotation with authorization certificates within 24 hours. With our ready stock and streamlined logistics, you can minimize spindle downtime and keep your CNC machines operating 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 complete traceability documentation and brand authorization certificates.

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

A: Provide your machine model or spindle specifications, and our precision application engineering team will verify compatibility at no cost.

Q: What is your warranty policy?

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

Q: What is the minimum order quantity?

A: We accept orders for 1 piece, supporting emergency repair needs and small-batch trials.

Q: How quickly can you ship?

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

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

A: Each bearing includes FAG’s original packaging with防伪标签, laser marking, and traceability documents. We can also provide official authorization letters upon request.

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

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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