NSK 3318 Angular Contact Ball Bearing - 90 mm ID, 190 mm OD, 73 mm Width
- d 90 mm
- D 190 mm
- B 73 mm
- Open (None)
- C0 - Normal
Genuine NSK product, NSK
- Regular price
- $1,477.39
- Sale price
- $1,477.39
- Regular price
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$353.50
Same-day shipping
Order by 3 PM ET for same-day shipping
Free shipping on orders over $100
Use code at checkout.
NSK 3318
$1,477.39
Why Apollo USA
Bearings from Apollo Industries, Oxford, Michigan
Apollo Industries supplies bearings, seals and maintenance tools to businesses across the US, with real people on the phone when you need a part matched.
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Same-day shipping
Order by 3 PM EST for same-day shipping.
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Free shipping over $100
All orders over $100 ship free by ground with code FREESHIP.
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90-day returns
Hassle-free returns on unused items within 90 days.
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Price match
Show us a competitor's advertised price on the same item and we will match it.
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Expert support
Support staff available by phone, web chat or email.
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Need tax exemption or quantity pricing?
We offer special rates for businesses and bulk orders.
Talk to a bearing specialist
2695 Lake George RdOxford, MI 48370
Overview
NSK 3318 Angular contact ball bearing
Angular Contact Ball Bearing
NSK angular contact ball bearings have raceways that displace inner and outer rings axially relative to each other, enabling them to support combined radial and axial loads. Available as single, double, and four-point contact, they are essential in pumps, compressors, gearboxes, and machine tool spindles.
Key features
- Supports combined radial and axial loads
- High speed and precision capability
- Single, double, and four-point contact designs
- Optimized contact angles available
- Engineered for long service life
Specifications
NSK 3318 dimensions & specifications
- Bearing type
- Angular contact ball bearing
- Bore diameter d
- 90 mm (3.543 in)
- Outside diameter D
- 190 mm (7.48 in)
- Width B
- 73 mm (2.874 in)
- Seals / shields
- Open (None)
- Internal clearance
- C0 - Normal
- Weight
- 20.06 lb
- Brand
- NSK
- Part number
- 3318
All specifications
Dimensions
| Bore Diameter | 90 mm |
| Outside Diameter | 190 mm |
| Width | 73 mm |
Properties
| Material | Standard bearing steel |
| Cage | Sheet steel cage |
| Seal | None, open bearing |
| Clearance | Normal radial clearance |
| Outer ring | Without flange/groove |
| Tolerance class | Tolerance class P0/PN2 / ABEC 1 |
| Temperature range | -20 to +150 °C |
| Arrangement | Standard version |
| Ball rows | Double row bearing |
| Contact angle | Without indication, usually 30-40 degrees |
Logistics
| Product Net Weight | 9.1 |
Tools & lubrication
Complete the job for your 3318
Mount it without damage and keep it lubricated. Tick what you need and add it with one click.
Part number decoded
What every part of 3318 means
- 33
- 33xx / 53xx double-row angular contact, medium (dimension series 23)
- 18
- Bore code 18 × 5 = 90 mm (ISO convention)
Catalogs & documents
NSK 3318 catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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Catalog
NSK Rolling Bearings for Industrial Machinery (opens in a new tab)
PDF · 299 MB · English
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Interchange
NSK Bearing and Linear Replacement Guide (opens in a new tab)
PDF · 16 MB · English
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Catalog
NSK Deep Groove Ball Bearings (opens in a new tab)
PDF · 4 MB · English
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Catalog
NSK Ball Bearing Units (opens in a new tab)
PDF · 12 MB · English
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Mounting
NSK Bearing Doctor: Handling, Maintenance and Troubleshooting (opens in a new tab)
PDF · 18 MB · English
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Technical
NSK Internal Clearance: Types and Norms (opens in a new tab)
PDF · 559 KB · English
About the brand
About NSK
Japan's first bearing maker, since 1916.
NSK was founded in Tokyo on 8 November 1916 and mass-produced bearings in its founding year, a first in Japan. In 1918 it built Japan's first large thrust bearings. NSK Americas was founded in 1997.
Genuine NSK product
Founded
1916
Headquarters
Tokyo, Japan
Known for
- Deep groove ball bearings
- NSKHPS spherical and cylindrical roller bearings
- Super precision bearings
- Linear guides
Disclaimer: Apollo Industries is not an authorized distributor, reseller, or representative of NSK. All NSK trademarks and product names are the property of their respective owners. We sell genuine NSK products purchased through independent channels.
FAQ
3318 questions & answers
What are the dimensions of the NSK 3318?
The NSK 3318 has a 90 mm bore (d), a 190 mm outside diameter (D) and a 73 mm width (B). In inches: 3.543 × 7.48 × 2.874 in.
What type of bearing is the 3318?
The NSK 3318 is an angular contact ball bearing.
Is the 3318 sealed or shielded?
The NSK 3318 is an open bearing (Open (None)): it has no seals or shields.
What internal clearance does the 3318 have?
The NSK 3318 has C0 - Normal internal clearance.
Is this a genuine NSK bearing?
Yes. Apollo Industries sells genuine NSK products, purchased through independent channels. Apollo is not an authorized distributor, reseller, or representative of NSK.
Do you ship the 3318 the same day?
In-stock orders placed by 3 PM EST ship the same day. All orders over $100 ship free by ground with code FREESHIP.
Can I get quantity pricing or buy tax-exempt?
Yes. Apollo offers special rates for businesses and bulk orders. Use Request a quote on this page or call (248) 429-9073.
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