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63Deep Groove Ball Bearings

6318

d 90 × D 190 × B 43 mm

The 6318 is a deep groove ball bearing with bore 90mm, outer diameter 190mm, and width 43mm rated for dynamic load 143.0 kN.

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NOMINAL DIMENSION DRAWINGD = 190 mmd = 90 mmB = 43 mmNLHB BEARINGS631890 × 190 × 43 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
6318 · 90x190x43 mm

📋 Technical Specifications

Bore (d)
90mm
Outer Dia. (D)
190mm
Width (B)
43mm
Dynamic Load (Cr)
143.00 kN(143000 N)
Static Load (C0r)
107.00 kN(107000 N)

Reference speed for this model is provided with your quotation.

Bearing typeDeep Groove Ball Bearings
Series63
Seal typeOpen
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

🔐 Model Code Breakdown

What each part of 6318 means.

6
Type
3
Series
18
Bore
66 = Deep Groove Ball Bearing
33 = dimension-series code
1818 = bore code; nominal bore d = 90 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 shields6318ZZGeneral dust protectionQuote →
Double contact rubber seals6318 2RSDust and moisture protection at moderate speedQuote →
Double non-contact rubber seals6318 2RZ (inquiry only)Lower-friction sealing at higher speedQuote →
C3 radial clearance6318 C3 (inquiry only)Motors and applications with higher operating temperatureQuote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)90
Outer diameter (D)190
Width (B)43

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

📑 Drawings & 3D Model

6318 bearing dimension drawing, 90 x 190 x 43 mm
6318 dimension drawing: bore d 90 mm × outer diameter D 190 mm × width B 43 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.

⇄ Same-size Bearings & Reference Options

The models below share the 90x190x43 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
6318 2RSConfiguration variant63SealedQuote →
6318NSame boundary dimensions — verify fit/load6300OpenQuote →
6318NRSame boundary dimensions — verify fit/load6300OpenQuote →
6318ZZConfiguration variant63ShieldedQuote →
7318Same boundary dimensions — verify fit/load73 SeriesOpenQuote →
BL318Same boundary dimensions — verify fit/loadFull-Complement Deep Groove Ball BearingsOpenQuote →
BL318ZZSame boundary dimensions — verify fit/loadFull-Complement Deep Groove Ball BearingsOpenQuote →

⚙ Typical Applications

Electric motors
Fans and blowers
Pumps
Household appliances
Power tools
Office equipment
General 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 6318?
The 6318 bearing has bore (d) = 90 mm, outer diameter (D) = 190 mm, and width (B) = 43 mm.
Is there a 6318 drawing or CAD file?
Yes. The 6318 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 6318?
Dynamic load rating (Cr) = 143.00 kN (143000 N), static load rating (C0r) = 107.00 kN.
What tolerance class is the 6318?
The standard tolerance class of the 6318 is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does 6318 belong to?
The 6318 belongs to the 63 within the Deep Groove Ball Bearings category.
Can NLHB supply 6318 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 6318 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 6318?
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 6318

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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