# 6308C3 | Nachi - MROSupply.com ***Nachi Bearing 6308C3 Deep Groove Ball Bearing Open*** ## Product details: - Catalog number: 6308C3 - SKU: 207793 - Price: ***$29.95*** Each - Quantity: This vendor has a minimum order quantity of 4.Order minimum ($) may be applied. Add desired QTY to cart and proceed to checkout to view minimum' - Brand Minimum Order Quantity - 4 (This is the minimum order quantity if ordering this unit alone from the vendor. Adding other products from the same vendor will reduce the overall requirement. If adding multiple products from same vendor, please add all products to cart to see total minimum.) - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [Nachi Bearing](https://www.mrosupply.com/brands/nachi-bearing/) - Category: - [6300 Series Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/6300-series-ball-bearings/) - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/) - [Bearings](htts://www.mrosupply.com/bearings/) - Unit of measure: each - Weight: 1.400 lb - UPC: 4991893777130 - Technicall support: contact supplier for technical support on 800-829-5787 ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product attributes; - Bearing Material: Steel - Bore Type: Cylindrical - Cage Material: JIS SPCC Steel - Closure Type: Open - Contact Angle (Deg): N/A - Dynamic Load Capacity (N): 40500 - Grease Fill: No Fill - Inner Diameter (mm): 40 - Inner Ring Material: JIS SUJ2 Steel - Internal Clearance: C3 - ISO Precision Class: P0 - Limiting Speed - Grease (RPM): 7800 - Limiting Speed - Oil (RPM): 9200 - Max Operating Temp.: 120°C (248°F) - Number of Rows: 1 - Outer Diameter (mm): 90 - Outer Ring Material: JIS SUJ2 Steel - Preload: N/A - Rolling Element Material: JIS SUJ2 Steel - Seals or Shields: No - Series: 6300 - Snap Ring: No - Static Load Capacity (N): 24100 - Universally (Flush) Ground: N/A - Width (mm): 9200 ## Product documents / software: - [6308](https://documents.mrosupply.com/product_documents/60/6000/147-158.pdf) - [Assembly Manual](https://documents.mrosupply.com/product_documents/60/604/B3115E.pdf) - [Complete Guide](https://documents.mrosupply.com/product_documents/60/604/B1031E-5.pdf) - [Dimensions](https://documents.mrosupply.com/product_documents/60/6000/B3402E.pdf) - [General Information](https://documents.mrosupply.com/product_documents/60/604/gene.pdf) - [Series Description](https://documents.mrosupply.com/product_documents/60/604/bear.pdf) - [Tolerances](https://documents.mrosupply.com/product_documents/60/604/B1032E-5.pdf) ## Alternate products to `6308C3 | Nachi - MROSupply.com`: - [SKF 6308/C3 is a 40mm bore deep groove ball bearing with C3 greater-than-normal clearance. It features a sheet metal cage and is made of bearing steel. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/319657/as-markdown/) - [SKF 6308 JEM is a 40mm bore deep groove ball bearing with a machined brass cage and C3 clearance. This open bearing has no seals or shields, allowing for high-speed operation and easy relubrication. Suitable for electric motors, pumps, fans, and general industrial machinery.](https://www.mrosupply.com/products/320349/as-markdown/) - [SKF 6308 TN9/C3 deep groove ball bearing, 40mm bore, 90mm OD, 23mm width. Open bearing with glass-fiber-reinforced polyamide cage and C3 greater-than-normal internal clearance. Designed for high-speed operation and moderate radial loads in electric motors, pumps, and general industrial machinery.](https://www.mrosupply.com/products/2066726/as-markdown/) - [FAG 6308-C3 deep groove ball bearing with 40mm bore and 90mm OD. Features C3 internal clearance for applications requiring higher operating temperatures or interference fits. Single row design accommodates radial and axial loads. Precision engineered by Schaeffler for reliable performance.](https://www.mrosupply.com/products/2176060/as-markdown/) - [Koyo 6308 is a 63 series single-row deep groove ball bearing with a 40 mm straight bore, 90 mm outside diameter, and 23 mm width. Open type design with no seals or shields. Suitable for electric motors, pumps, fans, and general industrial rotating equipment.](https://www.mrosupply.com/products/1494943/as-markdown/) - [NTN 6308C3 is a 63 series single-row deep groove ball bearing with a 40 mm straight bore. It is an open design with C3 clearance, allowing for thermal expansion in applications such as electric motors, pumps, and fans.](https://www.mrosupply.com/products/278847/as-markdown/) - [NSK 6308C3 deep groove ball bearing with 40 mm bore and 90 mm OD. C3 clearance provides looser internal fit for applications with thermal expansion or interference fits. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5034215/as-markdown/) ## Product's reviews: - Good stuff great price - Exactly what I ordered. ## FAQ: - How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design. - What is the difference between deep groove and angular contact ball bearings?: Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.