KING MB5871SI Bearings

( Brand: King ), ( Manufacturer Part Number: MB5871SI ), ( Seller: Performanceparts ), ( Type: Main Bearings )

Review KING Main Bearings Series fits SI

Introducing the King KM5871SI Bearings, a premium upgrade for your skateboard or other rotating applications that demand exceptional performance and durability. These bearings are engineered with a unique, self-lubricating, shielded design that offers several advantages over standard bearings.

The core of these bearings is a high-strength, rust-resistant, stainless steel raceway that ensures smooth and consistent roll. The raceway is further reinforced with King's patented Nitroceramic ball retainer, which minimizes friction and provides increased contact area for greater load capacity and stability.

The shielded design of the KM5871SI bearings offers superior protection against debris and contaminants, ensuring longer lifespan and less maintenance. The shields are also removable, making it easy to clean and maintain the bearings for optimal performance.

These bearings also feature an improved seal design that keeps out moisture and prevents corrosion, making them ideal for use in wet or humid environments. The precision machined steel balls and raceways ensure uniformity and minimize wobble, providing a smoother and more responsive feel.

The KM5871SI bearings come pre-lubricated with Speed Cream, a high-performance lubricant that provides long-lasting protection and reduces friction. This ensures a quick roll-initiation and maximum speed, making them perfect for aggressive skateboarding or other high-performance applications.

In summary, the King KM5871SI Bearings are a top-of-the-line upgrade for any rotating application that demands exceptional performance and durability. With their self-lubricating, shielded design, high-strength materials, and improved seal system, these bearings offer increased stability, longer lifespan, and maximum speed.

Pros and Cons of Buying King Mb5871si Bearings for Your Application

King Mb5871si bearings are popular choices for various applications due to their high-performance features. However, like any other product, they come with their advantages and disadvantages. In this article, we will discuss the pros and cons of purchasing King Mb5871si bearings to help you make an informed decision.

1. High Load Capacity: These bearings offer a high load capacity, making them suitable for heavy-duty applications. They can handle large forces without compromising their performance or reliability.

2. Precision and Accuracy: The King Mb5871si bearings are engineered for precision and accuracy. They have a low coefficient of friction, which reduces wear and tear, and ensures smooth operation.

3. Durability: These bearings are made from high-quality materials and are designed to last longer than standard bearings. They can withstand harsh environments and extreme temperatures without failing.

4. Reduced Noise and Vibration: The King Mb5871si bearings are known for their ability to reduce noise and vibration. They have a unique design that minimizes the contact between the rolling elements and the raceways, resulting in a quieter operation.

1. Cost: These bearings are more expensive than standard bearings due to their high-performance features and materials. They may not be the most cost-effective option for low-load applications.

2. Complex Installation: The installation process of these bearings can be more complex than standard bearings due to their unique design and larger size. It may require specialized tools and knowledge.

3. Limited Availability: King Mb5871si bearings may not be readily available in local stores or online marketplaces. They are typically sold through industrial supply companies or directly from the manufacturer.

King Mb5871si bearings offer several advantages, including high load capacity, precision and accuracy, durability, and reduced noise and vibration. However, they also come with some disadvantages, such as cost, complex installation, and limited availability. If you require a bearing for a heavy-duty application that demands high precision and durability, these bearings may be worth the investment. On the other hand, if you have a low-load application or a limited budget, standard bearings may be a more cost-effective option.

If you are considering purchasing King Mb5871si bearings for your application, it is recommended that you consult with a qualified engineer or a technical expert to assess the specific requirements of your application and determine if these bearings are the best fit for your needs. Additionally, you may want to explore alternative bearing options that offer similar performance features but are more cost-effective.

Details:

Chambered: No. In some cases, the image being displayed may be different due to a running change by manufacturer, for which new has not supplied. Items must be in the original packaging. Construction: Bi-Metal.

Backing Layer Material: Steel. Boxes on orders over $200. Overlay Material: None. Warranty: Most parts come with a limited manufacturers warranty on the part ONLY.

Automotive A1000 Fuel Pump King Main Bearings MB5871SI; SI Series: Specifications: Series. Any shipping costs are based on weight, Size, and number of packages. Narrowed: No. Usage: Replacement.

Bearing Lining or Intermediate Material: Aluminum.

part #: mb5871si prices

• $43.59-$61.01

specifications engibearing:

• for models: Si
• brand: King
• manufacturer part number: MB5871SI
• seller: Performanceparts
• type: Main Bearings

shipping engibearing:

• service: UPS Ground
• class: Standard
• cost: $0.00
• type: Calculated
• carrier: UPS
• transit: 4-7 Days

payments engibearing:

• credit card: Mastercard
• wallet: Google-pay
• other

offer engibearing:

• started: October 30, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home

seller engibearing:

• rating: 99.7%
• # reviews: 140576
• city: Livingston, New Jersey

returns engibearing:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general engibearing:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings

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