H SeriesAngular Contact Ball Bearings

H71903AC

d 17 × D 30 × B 7 mm

The H71903AC is a bearing with bore 17mm, outer diameter 30mm, and width 7mm rated for dynamic load 3.2 kN.

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H71903AC · 17x30x7 mm

📋 Technical Specifications

Bore (d)

17mm

Outer Dia. (D)

30mm

Width (B)

7mm

Dynamic Load (Cr)

3.20 kN(3200 N)

Static Load (C0r)

1.70 kN(1700 N)

Reference Speed

Confirm per inquiryrpm

Bearing type	Angular Contact Ball Bearings
Series	H 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)

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	17
Outer diameter (D)	30
Width (B)	7

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 17x30x7 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
6903	Same boundary dimensions — verify fit/load	6700 / 6800 / 6900 Thin-Section Series	Open	Quote →
6903 2RS	Same boundary dimensions — verify fit/load	6700 / 6800 / 6900 Thin-Section Series	Rubber Seals	Quote →
6903 2RZ	Same boundary dimensions — verify fit/load	6700 / 6800 / 6900 Thin-Section Series	Rubber Seals	Quote →
6903 ZZ	Same boundary dimensions — verify fit/load	6700 / 6800 / 6900 Thin-Section Series	Metal Shields	Quote →
F6903	Different outer-ring feature	Standard Flanged Bearings	Shielded	Quote →
F6903 ZZ	Different outer-ring feature	F6903	Metal Shields	Quote →
F6903ZZ	Different outer-ring feature	F6903	Shielded	Quote →
H71903AC/HQ1	Same boundary dimensions — verify fit/load	H Series	Open	Quote →
H71903C	Same boundary dimensions — verify fit/load	H Series	Open	Quote →
H71903C/HQ1	Same boundary dimensions — verify fit/load	H Series	Open	Quote →
N6903	Different outer-ring feature	Deep Groove Bearings with Snap-Ring Groove	Open	Quote →
N6903 2RS	Different outer-ring feature	Deep Groove Bearings with Snap-Ring Groove	Rubber Seals	Quote →
N6903 2RZ	Different outer-ring feature	Deep Groove Bearings with Snap-Ring Groove	Rubber Seals	Quote →
N6903 ZZ	Different outer-ring feature	Deep Groove Bearings with Snap-Ring Groove	Metal Shields	Quote →
SF6903	Same boundary dimensions — verify fit/load	F6903	Open	Quote →
SF6903ZZ	Same boundary dimensions — verify fit/load	F6903	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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4,315

Catalog Models

15+

Years

RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of H71903AC?

The H71903AC bearing has bore (d) = 17 mm, outer diameter (D) = 30 mm, and width (B) = 7 mm.

What is the load rating of H71903AC?

Dynamic load rating (Cr) = 3.20 kN (3200 N), static load rating (C0r) = 1.70 kN.

What bearing series does H71903AC belong to?

The H71903AC belongs to the H Series within the Angular Contact Ball Bearings category.

Can NLHB supply H71903AC 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 H71903AC 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 H71903AC?

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 H71903AC

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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