73 SeriesAngular Contact Ball Bearings

7321

d 105 × D 225 × B 49 mm

The 7321 is a bearing with bore 105mm, outer diameter 225mm, and width 49mm rated for dynamic load 220.0 kN.

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7321 · 105x225x49 mm

📋 Technical Specifications

Bore (d)

105mm

Outer Dia. (D)

225mm

Width (B)

49mm

Dynamic Load (Cr)

220.00 kN(220000 N)

Static Load (C0r)

210.00 kN(210000 N)

Reference Speed

Confirm per inquiryrpm

Bearing type	Angular Contact Ball Bearings
Series	73 Series
Seal type	Confirm per inquiry
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Confirmed per drawing
Dimension unit	millimeter (mm)

🔐 Model Code Breakdown

What each part of 7321 means.

Type

Series

Bore

7	7 = Angular Contact Ball Bearing
3	3 = dimension-series code
21	21 = bore code; nominal bore d = 105 mm

📋 Nominal Variants by Seal Type

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

Seal Type	Model Code	Typical Use
Double metal shields	7321 ZZ (inquiry only)	General dust protection	Quote →
Double contact rubber seals	7321 2RS (inquiry only)	Dust and moisture protection at moderate speed	Quote →
Double non-contact rubber seals	7321 2RZ (inquiry only)	Lower-friction sealing at higher speed	Quote →
C3 radial clearance	7321 C3 (inquiry only)	Motors and applications with higher operating temperature	Quote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	105
Outer diameter (D)	225
Width (B)	49

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

📑 Drawings & 3D Model

📑

2D Drawing

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📅

3D STEP Model

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🔎

CAD File

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Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).

⇄ Same-size Bearings & Reference Options

The models below share the 105x225x49 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.

Model	Relationship	Series	Seal	Action
6321	Same boundary dimensions — verify fit/load	63	Open	Quote →
6321 2RS	Same boundary dimensions — verify fit/load	63	Sealed	Quote →
6321ZZ	Same boundary dimensions — verify fit/load	63	Shielded	Quote →

⚙ Typical Applications

Industrial machinery

Material handling

General engineering

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.

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Catalog Models

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❓ Frequently Asked Questions

What are the dimensions of 7321?

The 7321 bearing has bore (d) = 105 mm, outer diameter (D) = 225 mm, and width (B) = 49 mm.

What is the load rating of 7321?

Dynamic load rating (Cr) = 220.00 kN (220000 N), static load rating (C0r) = 210.00 kN.

What bearing series does 7321 belong to?

The 7321 belongs to the 73 Series within the Angular Contact Ball Bearings category.

Can NLHB supply 7321 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 7321 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 7321?

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.

Get a quote for 7321

Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.

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