NSK 6312-DDU Deep Groove Ball Bearing - 60 mm ID, 130 mm OD, 31 mm Width
- d 60 mm
- D 130 mm
- B 31 mm
- Double Rubber Seals
- C0 - Normal
Genuine NSK product, NSK
- Regular price
- $141.57
- Sale price
- $141.57
- Regular price
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$30.22
Same-day shipping
Order by 3 PM ET for same-day shipping
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NSK 6312-DDU
$141.57
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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Order by 3 PM EST for same-day shipping.
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2695 Lake George RdOxford, MI 48370
Overview
NSK 6312-DDU Deep groove ball bearing
Deep Groove Ball Bearing
NSK deep groove ball bearings are versatile, robust, and accommodate radial and axial loads in both directions. Their simple design, low friction, and high speed capability make them suitable for a wide range of industrial applications, from electric motors to gearboxes. Sealed and shielded variants protect against contamination, while open versions allow easy lubrication.
Key features
- Versatile design for radial and axial loads
- Low friction and high speed capability
- Available open, shielded, or sealed
- Long service life with low maintenance
- Suitable for a wide range of applications
Specifications
NSK 6312-DDU dimensions & specifications
- Bearing type
- Deep groove ball bearing
- Bore diameter d
- 60 mm (2.362 in)
- Outside diameter D
- 130 mm (5.118 in)
- Width B
- 31 mm (1.22 in)
- Seals / shields
- Double Rubber Seals
- Internal clearance
- C0 - Normal
- Weight
- 3.79 lb
- Brand
- NSK
- Part number
- 6312-DDU also written 6312DDU
All specifications
Dimensions
| Bore Diameter | 60 mm |
| Outside Diameter | 130 mm |
| Width | 31 mm |
Properties
| Material | Standard bearing steel |
| Material of rolling elements | Standard bearing steel |
| Cage | Sheet steel cage |
| Seal | Contact seal on both sides |
| Bore | Cylindrical bore |
| Clearance | Normal radial clearance |
| Outer ring | Without flange/groove |
| Tolerance class | Tolerance class P0/PN2 / ABEC 1 |
| Temperature range | -20 to +120 °C |
| Ball rows | Single row bearing |
| Current insulation | No current insulation |
Logistics
| Product Net Weight | 1.72 |
Cross reference
6312-DDU 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
6312-2RS1SKF 6312 -2RS1 Deep Groove Ball Bearing - 60 mm ID, 130 mm OD, 31 mm Width, Cylindrical Bore, Normal
- Same size
- Same seals
- Same clearance
Sale price$116.13
Regular price$179.34In stock
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FAG
6312-C-2HRSFAG 6312 -C-2HRS Deep Groove Ball Bearing - 60 mm ID, 130 mm OD, 31 mm Width, Cylindrical Bore, Normal
- Same size
- Same seals
- Same clearance
$136.25
In stock
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Timken
6312-2RSTimken 6312-2RS Single Row Deep Groove Ball Bearing, Metric Series, 60.0mm Bore, 130.0mm OD, 31.0mm Width, Double Sealed, Cylindrical Bore, Steel Cage, C0 (Normal) Clearance, ISO P0 Tolerance
- Same size
- Same seals
- Same clearance
$188.80
In stock
-
- Same size
- Same seals
- Same clearance
$283.50
In stock
-
- Same size
- Same clearance
$103.68
In stock
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SKF
6312.2RS
Contact seals both sides
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Consolidated
6312-2RS
Contact seals both sides
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NTN
6312LLU
Contact seals both sides
Reference data only. Verify specifications before you order.
Search more equivalents in the Apollo Bearing IndexTools & lubrication
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Part number decoded
What every part of 6312-DDU means
- 63
- 63xx medium deep groove ball (dimension series 03)
- 12
- Bore code 12 × 5 = 60 mm (ISO convention)
- DDU
- Contact rubber seals on both sides
Catalogs & documents
NSK 6312-DDU 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
6312-DDU questions & answers
What are the dimensions of the NSK 6312-DDU?
The NSK 6312-DDU has a 60 mm bore (d), a 130 mm outside diameter (D) and a 31 mm width (B). In inches: 2.362 × 5.118 × 1.22 in.
What type of bearing is the 6312-DDU?
The NSK 6312-DDU is a deep groove ball bearing.
Is the 6312-DDU sealed or shielded?
The NSK 6312-DDU is sealed: Double Rubber Seals.
What internal clearance does the 6312-DDU have?
The NSK 6312-DDU has C0 - Normal internal clearance.
What can I use instead of the NSK 6312-DDU?
Equivalents with the same boundary dimensions include SKF 6312-2RS1, FAG 6312-C-2HRS, Timken 6312-2RS, JTEKT-KOYO 6312-2RS, SKF 6312.2RS, Consolidated 6312-2RS. 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 6312-DDU 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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