NSK 51320 Axial Deep Groove Ball Bearing - 100 mm ID, 170 mm OD, 55 mm Width
- d 100 mm
- D 170 mm
- B 55 mm
- Open (None)
- C0 - Normal
Genuine NSK product, NSK
- Regular price
- $680.56
- Sale price
- $680.56
- Regular price
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$177.40
Same-day shipping
Order by 3 PM ET for same-day shipping
Free shipping on orders over $100
Use code at checkout.
NSK 51320
$680.56
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 51320 Thrust bearing
Axial Deep Groove Ball Bearing
NSK axial (thrust) deep groove ball bearings are designed to support pure axial loads and consist of shaft and housing washers and a ball-and-cage assembly. Single-direction and double-direction variants are available; single-direction handles thrust in one direction only.
Key features
- Designed for pure axial loads
- Single and double direction variants
- Separable washers simplify mounting
- Suitable for moderate speeds
- Long service life under thrust loads
Specifications
NSK 51320 dimensions & specifications
- Bearing type
- Thrust bearing
- Bore diameter d
- 100 mm (3.937 in)
- Outside diameter D
- 170 mm (6.693 in)
- Width B
- 55 mm (2.165 in)
- Seals / shields
- Open (None)
- Internal clearance
- C0 - Normal
- Weight
- 11.27 lb
- Brand
- NSK
- Part number
- 51320
All specifications
Dimensions
| Bore Diameter | 100 mm |
| Outside Diameter | 170 mm |
| Width | 55 mm |
Properties
| Material | Standard bearing steel |
| Cage | Sheet steel cage |
| Tolerance class | Tolerance class P0/PN2 / ABEC 1 |
| Temperature range | -30 to +150 °C |
| Operating direction | Single direction bearing |
Logistics
| Product Net Weight | 5.11 |
Cross reference
51320 cross reference & equivalents
Bearings from other brands with the same boundary dimensions. Check seals, clearance, cage and precision class before you order.
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SKF
51320
Same size
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RHP
51320
Same size
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SNR
51320
Same size
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Consolidated
51320
Same size
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FAG
51320
Same size
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NTN
51320
Same size
Reference data only. Verify specifications before you order.
Search more equivalents in the Apollo Bearing IndexTools & lubrication
Complete the job for your 51320
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Part number decoded
What every part of 51320 means
- 513
- 513xx thrust ball, heavy (dimension series 13)
- 20
- Bore code 20 × 5 = 100 mm (ISO convention)
Catalogs & documents
NSK 51320 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
51320 questions & answers
What are the dimensions of the NSK 51320?
The NSK 51320 has a 100 mm bore (d), a 170 mm outside diameter (D) and a 55 mm width (B). In inches: 3.937 × 6.693 × 2.165 in.
What type of bearing is the 51320?
The NSK 51320 is a thrust bearing.
Is the 51320 sealed or shielded?
The NSK 51320 is an open bearing (Open (None)): it has no seals or shields.
What internal clearance does the 51320 have?
The NSK 51320 has C0 - Normal internal clearance.
What can I use instead of the NSK 51320?
Equivalents with the same boundary dimensions include SKF 51320, RHP 51320, SNR 51320, Consolidated 51320. Check the seals, internal clearance, cage and precision class before you order.
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 51320 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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