Nachi N318 C3 Cylindrical Roller Bearing - 90 mm ID, 190 mm OD, 43 mm Width, C3
- d 90 mm
- D 190 mm
- B 43 mm
- C3 - Loose
Genuine Nachi product, Nachi
- Regular price
- $1,198.84
- Sale price
- $1,198.84
- Regular price
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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
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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?
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2695 Lake George RdOxford, MI 48370
Overview
Nachi N318 C3 Cylindrical roller bearing
Cylindrical Roller Bearing, floating design with flangeless outer ring and increased clearance
The Nachi N318 C3 is a single-row cylindrical roller bearing of 90 mm bore, 190 mm outside diameter and 43 mm width, in the N execution with C3 clearance. The outer ring carries no flanges and lifts away from the roller set for mounting, and the bearing takes up shaft expansion internally rather than transmitting it to the housing. C3 clearance suits hot-running shafts and firm interference fits. Pressed sheet steel cage, high radial capacity, no axial location.
Key features
- Flangeless outer ring, separable for mounting
- Increased C3 clearance for thermal expansion
- Floating design accommodates shaft expansion
- High radial load capacity from line contact
- Pressed sheet steel cage
- Suits hot-running shafts
Specifications
Nachi N318 C3 dimensions & specifications
- Bearing type
- Cylindrical roller bearing
- Bore diameter d
- 90 mm (3.543 in)
- Outside diameter D
- 190 mm (7.48 in)
- Width B
- 43 mm (1.693 in)
- Internal clearance
- C3 - Loose
- Weight
- 11.95 lb
- Brand
- Nachi
- Part number
- N318 C3 also written N318C3
All specifications
Dimensions
| Bore Diameter | 90 mm |
| Outside Diameter | 190 mm |
| Width | 43 mm |
Properties
| Bore | Cylindrical bore |
| Cage | Sheet steel cage |
| Clearance | Slightly increased radial clearance |
| Current insulation | No current insulation |
| Design | Floating bearing, outer ring removable on both sides |
| Outer ring | Without groove/lubrication holes |
| Roller rows | Single row bearing |
| Seal | None, open bearing |
| Tolerance class | Tolerance class P0/PN2 / ABEC 1 |
Logistics
| Product Net Weight | 5.42 |
Tools & lubrication
Complete the job for your N318 C3
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 N318 C3 means
- N
- Cylindrical roller bearing, ribs on the inner ring only
- 3
- NU3xx cylindrical roller, medium (dimension series 03)
- 18
- Bore code 18 × 5 = 90 mm (ISO convention)
- C3
- Radial internal clearance greater than normal (CN)
Catalogs & documents
Nachi N318 C3 catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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Catalog
Nachi Ball & Roller Bearings (B2100E-4) (opens in a new tab)
PDF · English
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Catalog
Nachi Deep-groove Ball Bearings, QUEST (B3402E-2) (opens in a new tab)
PDF · English
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Catalog
Nachi Spherical Roller Bearings (B1032E-5) (opens in a new tab)
PDF · English
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Catalog
Nachi Radial Ball Bearings (B4031E-2) (opens in a new tab)
PDF · English
About the brand
About Nachi
Nachi-Fujikoshi, founded in Toyama, Japan, in 1928.
Nachi-Fujikoshi was founded on 21 December 1928 in Toyama City, Japan, as Fujikoshi Steel Industry. It makes bearings alongside cutting tools, hydraulics, robots and specialty steel. Its North American headquarters is in Greenwood, Indiana.
Genuine Nachi product
Founded
1928
Headquarters
Toyama, Japan
Known for
- Deep groove ball bearings (QUEST)
- Spherical roller bearings
- Precision bearings
- Ball screw support bearings
Disclaimer: Apollo Industries is not an authorized distributor, reseller, or representative of Nachi. All Nachi trademarks and product names are the property of their respective owners. We sell genuine Nachi products purchased through independent channels.
FAQ
N318 C3 questions & answers
What are the dimensions of the Nachi N318 C3?
The Nachi N318 C3 has a 90 mm bore (d), a 190 mm outside diameter (D) and a 43 mm width (B). In inches: 3.543 × 7.48 × 1.693 in.
What type of bearing is the N318 C3?
The Nachi N318 C3 is a cylindrical roller bearing.
What internal clearance does the N318 C3 have?
The Nachi N318 C3 has C3 - Loose internal clearance.
Is this a genuine Nachi bearing?
Yes. Apollo Industries sells genuine Nachi products, purchased through independent channels. Apollo is not an authorized distributor, reseller, or representative of Nachi.
Do you ship the N318 C3 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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