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

Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use side angle
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use cross section
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use dimension drawing
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use side angle
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use cross section
Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use 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

Double Row Angular Contact Ball Bearing 3303-B-Tnh FAG Grease Lubrication Machinery Use

Model 3303-B-Tnh ● IN STOCK

<p>Ensure consistent high-speed rotation and reduce machinery downtime with the <strong>FAG 3303-B-Tnh</strong> double row angular contact ball bearing, engineered for precision machinery applications. Pre-lubricated with high-performance grease, this DIN 628-3 compliant bearing delivers stable load distribution and extended service life, ideal for CNC machine tools and automation equipment.</p><ul><li>Double row design with polyamide (Tvh) cage ensures exceptional rigidity and axial load capacity</li><li>Bearing steel construction maintains P0/P6/P5 precision grades for reliable operation in demanding environments</li><li>Open seal type allows for easy maintenance while preserving lubrication efficiency</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 consistent high-speed rotation and reduce machinery downtime with the FAG 3303-B-Tnh double row angular contact ball bearing, engineered for precision machinery applications. Pre-lubricated with high-performance grease, this DIN 628-3 compliant bearing delivers stable load distribution and extended service life, ideal for CNC machine tools and automation equipment.

  • Double row design with polyamide (Tvh) cage ensures exceptional rigidity and axial load capacity
  • Bearing steel construction maintains P0/P6/P5 precision grades for reliable operation in demanding environments
  • Open seal type allows for easy maintenance while preserving lubrication efficiency

Description

Product Specifications

Parameter Details
Model NO. Double Row Angular Contact Ball Bearing
Separated Separated
Rows Number Double
Material Bearing Steel
Standard DIN 628-3, ISO 15:2017
Series 32 Series, 33 Series (32bd, 33bd, 32da, 33da)
Cage Polyamide (Tvh), Sheet Steel, Brass (MP) Cage
Seal Type Open, 2z, 2hrs
Precision P0 /P6 /P5
Transport Package Carton Pallet
Trademark FAG
Origin Jiangsu China
HS Code 8482800000

Application Industries

Industry Typical Equipment
Machine Tools CNC Machine Spindles, Lathes, Milling Machines
Automation Robotic Arms, Conveyor Systems, Precision Actuators
General Machinery Gearboxes, Pumps, Compressors
Medical Devices Diagnostic Equipment, Precision Instrumentation

Stop Production Delays with Genuine FAG 3303-B-Tnh Double Row Angular Contact Ball Bearings

OEM manufacturers know the frustration: counterfeit bearings fail prematurely, causing unplanned downtime and production line shutdowns. Multi-tier distribution channels stretch lead times by 30-50%, making it nearly impossible to align with tight production schedules. When technical support is absent, selecting the wrong bearing model leads to increased maintenance costs and shortened equipment lifespan.

Genuine FAG 3303-B-Tnh Bearings: In Stock and Traceable

As an official authorized Schaeffler FAG distributor, we eliminate these pain points for the FAG 3303-B-Tnh double row angular contact ball bearing. Our direct brand access ensures 100% genuine products with complete traceability documentation, avoiding customs clearance issues and quality disputes. With sufficient stock of precision-grade bearings, we deliver within industry-leading timeframes, keeping your production on track. Whether for CNC machine tool spindles or automation equipment, our FAG 3303-B-Tnh bearings provide the reliability your operations demand.

Optimal Performance in Precision Machinery Applications

The FAG 3303-B-Tnh double row angular contact ball bearing excels in applications requiring high running accuracy and axial load capacity. Designed for machinery operating at moderate to high speeds, this bearing handles combined radial and axial loads efficiently, making it ideal for gearboxes, robotic joints, and precision rotary tables. Its double row design provides higher rigidity compared to single row alternatives, ensuring stable performance in dynamic operating conditions where precision alignment is critical.

Key Technical Features That Ensure Reliability

The FAG 3303-B-Tnh bearing incorporates several engineering features that directly impact equipment performance. Manufactured from high-quality bearing steel, it delivers exceptional durability under cyclic loading conditions. The precision grades (P0/P6/P5) allow selection based on application requirements, with P5 grade suitable for high-precision machine tools where minimal runout is essential. Available cage options—polyamide (Tvh), sheet steel, and brass (MP)—offer flexibility: polyamide cages reduce friction at high speeds, while brass cages provide enhanced heat resistance. The bearing’s compliance with DIN 628-3 and ISO 15:2017 standards ensures dimensional consistency and interchangeability with original equipment specifications.

Total Cost of Ownership: Why Genuine FAG Bearings Matter

Choosing genuine FAG 3303-B-Tnh bearings over gray-market alternatives reduces long-term costs significantly. Counterfeit bearings often fail within 30-50% of the expected service life, leading to repeated replacement cycles, unplanned maintenance, and production losses. In contrast, our authentic FAG bearings—backed by Schaeffler’s rigorous quality control—deliver predictable performance and extended service intervals. The included traceability documentation not only simplifies regulatory compliance for exported machinery but also provides peace of mind regarding product origin and quality. When calculating total ownership costs, the initial price difference between genuine and counterfeit bearings is quickly offset by reduced downtime and maintenance expenses.

Our Commitment to Your Production Success

We stand behind every FAG 3303-B-Tnh bearing with tangible guarantees of quality and service. As an official authorized distributor, each product comes with brand authorization certificates and full traceability documentation, ensuring you receive genuine FAG components. Our ISO 9001 compliant precision testing system verifies every bearing before shipment, confirming dimensional accuracy and performance characteristics. With a dedicated precision application engineering team, we provide free model selection assistance based on your specific working conditions, helping you avoid costly选型 mistakes. Serving high-end manufacturing across 40+ countries, our shockproof precision logistics ensure bearings arrive in optimal condition, whether shipped via DHL, FedEx, or sea freight.

Packaging & Shipping

  • Original FAG packaging with protective inner cartons and outer pallet reinforcement
  • 现货 available for dispatch within 3-7 working days
  • Flexible shipping options: DHL, FedEx, UPS, air freight, or sea freight
  • Real-time tracking number provided upon shipment
  • Minimum order quantity: 1 piece, supporting emergency maintenance needs

Secure Your FAG 3303-B-Tnh Bearings Today

Every day of equipment downtime erodes your production targets and profitability. With our ready stock of genuine FAG 3303-B-Tnh double row angular contact ball bearings, you can minimize lead times and restore operations quickly. Send us your model requirements, application parameters, and order volume now for a formal quotation within 24 hours—including all necessary certification documentation.

Frequently Asked Questions

Q: Are these genuine FAG bearings?

A: Yes, we are an official authorized Schaeffler FAG distributor. Every FAG 3303-B-Tnh bearing comes with brand authorization certificates and complete traceability documentation to verify authenticity.

Q: How can I confirm if the 3303-B-Tnh is suitable for my equipment?

A: Provide your equipment model or working condition parameters (load, speed, temperature), and our precision application engineering team will conduct free选型 verification to ensure compatibility.

Q: What is the warranty policy for these bearings?

A: We offer the full FAG manufacturer warranty, covering manufacturing defects with unconditional replacement or refund.

Q: What is the minimum order quantity?

A: We accept orders for 1 piece, supporting both emergency maintenance and small-batch procurement needs.

Q: How long does shipping take?

A: 现货 products ship within 3-7 working days. We offer DHL, FedEx, UPS, air freight, and sea freight options to match your delivery timeline requirements.

Q: How can I verify the authenticity of the bearings?

A: Authentic FAG bearings feature laser-etched markings, original packaging with security labels, and unique serial numbers verifiable through official channels.

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
3303-B-Tnh

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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