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3300/5300Double-Row Angular Contact Ball Bearings

3306

d 30 × D 72 × B 30.2 mm

The 3306 is a double-row angular contact ball bearing with bore 30mm, outer diameter 72mm, and width 30.2mm rated for dynamic load 41.0 kN.

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3306 — representative product photo
Representative product
3306 · 30x72x30.2 mm

📋 Technical Specifications

Bore (d)
30mm
Outer Dia. (D)
72mm
Width (B)
30.2mm
Dynamic Load (Cr)
41.00 kN(41000 N)
Static Load (C0r)
28.80 kN(28800 N)
Reference Speed
5800rpm
Bearing typeDouble-Row Angular Contact Ball Bearings
Series3300/5300
Seal typeOpen
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

📋 Nominal Variants by Seal Type

Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.

Seal TypeModel CodeTypical Use
Double metal shields3306 ZZ (inquiry only)General dust protectionQuote →
Double contact rubber seals3306 2RS (inquiry only)Dust and moisture protection at moderate speedQuote →
Double non-contact rubber seals3306 2RZ (inquiry only)Lower-friction sealing at higher speedQuote →
C3 radial clearance3306 C3 (inquiry only)Motors and applications with higher operating temperatureQuote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)30
Outer diameter (D)72
Width (B)30.2

Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

📑 Drawings & 3D Model

3306 bearing dimension drawing, 30 x 72 x 30.2 mm
3306 dimension drawing: bore d 30 mm × outer diameter D 72 mm × width B 30.2 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.

⚡ Source-Data Reference Speed

Catalog reference
5,800 rpm

Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.

⇄ Same-size Bearings & Reference Options

The models below share the 30x72x30.2 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.

ModelRelationshipSeriesSealAction
3306 / 5306Same boundary dimensions — verify fit/load3300/5300OpenQuote →
3306 CE-2RSH1TN9Same boundary dimensions — verify fit/loadTillage1-lip RS1Quote →
3306 CETN9Same boundary dimensions — verify fit/loadTillage–Quote →
5306Same boundary dimensions — verify fit/load5300 SeriesOpenQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
5306-2RS
30x72x30.16 mm
5300 Series
B -0.0mm
5306ZZ
30x72x30.16 mm
5300 Series
B -0.0mm
W6306
30x72x30.18 mm
W6300 Series
B -0.0mm

⚙ Typical Applications

Pumps
Compressors
Gearboxes
Automotive wheels
Material handling
Textile machinery

Why choose NLHB?

NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.

About NLHB →
4,300+
Models
15+
Years
RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of 3306?
The 3306 bearing has bore (d) = 30 mm, outer diameter (D) = 72 mm, and width (B) = 30.2 mm.
Is there a 3306 drawing or CAD file?
Yes. The 3306 dimension drawing (PDF) is free to download on this page. DXF and 3D STEP files are sent on request: tell us the model and your application.
What is the load rating of 3306?
Dynamic load rating (Cr) = 41.00 kN (41000 N), static load rating (C0r) = 28.80 kN.
What tolerance class is the 3306?
The standard tolerance class of the 3306 is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does 3306 belong to?
The 3306 belongs to the 3300/5300 within the Double-Row Angular Contact Ball Bearings category.
Can NLHB supply 3306 equivalents from other brands?
Depending on the model and order requirements, NLHB may manufacture in-house or source through qualified partner factories. Interchange and supply route are confirmed against your specification before quotation. All trademarks belong to their respective owners.
How do I order 3306 from NLHB?
Click "Request Quote" and send us your quantity, application, and required specifications. We review the specification, supply route, lead time, and pricing before issuing a quotation. Response time depends on specification complexity.
What materials are available for 3306?
Material grade is confirmed per inquiry. Availability depends on the model, quantity, application, and whether the order is manufactured in-house or sourced through a qualified partner factory. Material certificates or inspection documents are confirmed before quotation when required.

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