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

Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy side angle
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy cross section
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy dimension drawing
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy side angle
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy cross section
Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy 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

Cylindrical Roller Bearing B71930-C-T-P4s-UL for Precision Machine Tool Spindle with ISO P4 Accuracy

Model B71930-C-T-P4s-UL ● IN STOCK

<p>Ensure your precision machine tool spindle operates at peak accuracy with the <strong>FAG B71930-C-T-P4s-UL</strong> cylindrical roller bearing, engineered to deliver ISO P4-grade running precision for critical manufacturing applications. This 15° contact angle spindle bearing minimizes vibration and ensures consistent performance, addressing the challenges of maintaining batch stability in high-end OEM production.</p><ul><li>ISO P4/P4s precision compliance guarantees tight dimensional tolerances for smooth spindle rotation</li><li>15° contact angle design optimizes load distribution, extending service life under heavy machining conditions</li><li>Direct from authorized FAG distributor with full traceability documentation, eliminating supply chain uncertainties</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 precision machine tool spindle operates at peak accuracy with the FAG B71930-C-T-P4s-UL cylindrical roller bearing, engineered to deliver ISO P4-grade running precision for critical manufacturing applications. This 15° contact angle spindle bearing minimizes vibration and ensures consistent performance, addressing the challenges of maintaining batch stability in high-end OEM production.

  • ISO P4/P4s precision compliance guarantees tight dimensional tolerances for smooth spindle rotation
  • 15° contact angle design optimizes load distribution, extending service life under heavy machining conditions
  • Direct from authorized FAG distributor with full traceability documentation, eliminating supply chain uncertainties

Description

Product Specifications

Parameter Details
Model NO. FAG Spindle Bearing
Precision P4, P4s, P2 (ISO)
Contact Angle (α) 15° (C), 25° (E)
Material Steel
HS Code 8482800000

Application Industries

Industry Typical Equipment
Machine Tools CNC machine tool spindles
Aerospace Precision machining equipment
Medical Devices High-precision diagnostic equipment
Automation Precision robotic arms

Eliminate Spindle Downtime with FAG B71930-C-T-P4s-UL Precision Bearings

OEM manufacturers know the frustration of spindle failures caused by substandard bearings—unplanned downtime disrupts production schedules, creates delivery delays, and erodes profit margins. When counterfeit bearings slip through supply chains, the lack of proper traceability documentation complicates customs clearance and leaves companies vulnerable to quality liability disputes. Multi-tier distribution channels only worsen the problem, stretching lead times by 30-50% and making it nearly impossible to align with tight production timelines.

ISO P4 Precision Bearings with Official FAG Authorization

As an official authorized Schaeffler FAG distributor, we directly supply the FAG B71930-C-T-P4s-UL cylindrical roller bearing—designed specifically for precision machine tool spindles requiring ISO P4 accuracy. Our vertically integrated distribution model eliminates middlemen, ensuring batch consistency and reducing delivery cycles by up to 40% compared to traditional channels. With dedicated inventory for P4/P2 grade bearings, we maintain stock levels that support both scheduled production runs and emergency maintenance needs.

Engineered for High-Speed Spindle Performance

The FAG B71930-C-T-P4s-UL cylindrical roller bearing features a 15° contact angle (C designation) optimized for radial and axial load distribution in high-speed spindle applications. This design minimizes internal friction while maintaining rigidity, critical for achieving the tight tolerances required in CNC machining. Whether operating in continuous production environments or handling intermittent heavy loads, this bearing delivers consistent running accuracy—essential for maintaining part quality in aerospace and medical device manufacturing.

Technical Specifications That Matter

Precision class P4/P4s ensures minimal radial runout and axial clearance, directly impacting spindle rotation stability and machining precision. The steel cage construction provides robust support for rolling elements under high centrifugal forces, while the UL designation indicates strict manufacturing controls for dimensional consistency. Together, these features enable the bearing to maintain performance in operating temperatures typical of machine tool spindles, where heat management directly affects tool life and workpiece accuracy. Our ISO 9001 & DIN compliant testing system verifies each bearing meets these specifications before shipment.

Total Cost of Ownership: Beyond Initial Price

Choosing unauthorized channels may offer lower upfront costs, but the hidden expenses of counterfeit bearings quickly erase these savings. A single spindle failure from a counterfeit bearing can cost $10,000-$50,000 in downtime, repair parts, and lost production. Genuine FAG bearings, backed by full traceability documentation, reduce failure risks by 70% compared to gray market alternatives. Our precision application engineering team further optimizes TCO by providing working condition-based model selection and installation guidance—avoiding common misapplications that shorten bearing life by 30% or more.

Why Global Manufacturers Trust Our Supply

With 15+ years serving high-end manufacturing across 40+ countries, we’ve built our reputation on four pillars of reliability: official original supply with complete traceability from FAG factories, sufficient P4/P2 grade stock ensuring 95% of standard models ship within 3 business days, a dedicated precision application engineering team with average 8+ years of bearing expertise, and shockproof precision logistics that maintain bearing integrity during transportation. Our clients include CNC machine tool OEMs and aerospace manufacturers who demand compliance with strict export documentation requirements.

Packaging & Shipping

  • Original FAG packaging with manufacturer’s certification and traceability documents
  • Shockproof palletizing to prevent damage during transit
  • Express delivery options via DHL, FedEx, or UPS for urgent requirements
  • Real-time shipment tracking provided upon dispatch
  • Flexible order quantities with no minimum purchase requirement

Get Your Precision Spindle Bearings Delivered On Schedule

Every day of delayed spindle maintenance costs your operation valuable production time. Send us your bearing model list and application parameters today, and we’ll provide a formal quotation with full certification within 24 hours. For critical situations, our small-batch trial order option allows quality verification before committing to larger quantities—ensuring perfect fit for your machine tool spindles.

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 this bearing fits my machine tool spindle?

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

Q: What is your warranty policy?

A: All bearings come with 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 both emergency repairs and small-batch production needs.

Q: How quickly can you ship this bearing?

A: Stock items ship within 3-7 business days via your choice of express or standard logistics.

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

A: Each bearing includes FAG’s original packaging with防伪标签, laser-etched part numbers, and we provide full traceability documentation for verification through 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
B71930-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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