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Steel Miniature Deep Groove Ball Bearing 0.315in Bore 0.866in OD, Pkg Qty 20

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Industrial · SKU: JU4620

Steel Miniature Deep Groove Ball Bearing 0.315in Bore 0.866in OD, Pkg Qty 20

Engineered for precision applications, this steel miniature deep groove ball bearing features a 0. 315-inch bore diameter and a 0.

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$99.99
$5.00/each(20 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$99.99
11 - 50-5%$94.99
51+-10%$89.99
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Quick Answer

How Buyers Should Evaluate Steel Miniature Deep Groove Ball Bearing 0.315in Bore 0.866in OD, Pkg Qty 20

Engineered for precision applications, this steel miniature deep groove ball bearing features a 0. 315-inch bore diameter and a 0. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • Bore Diameter: 0.315 in
  • Outside Diameter: 0.866 in
  • Material: Steel

Purchase Details

  • Online price starts at $99.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 20 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

Bore Diameter0.315 in
Outside Diameter0.866 in
MaterialSteel
Inside Diameter0.315 in
Length0.276 in
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This steel miniature deep groove ball bearing is engineered for high-precision industrial applications where space constraints and rotational accuracy are critical. Designed with a compact footprint, the unit features a 0.315-inch bore diameter and an 0.866-inch outside diameter, allowing for seamless integration into tight mechanical assemblies. The bearing width measures 0.276 inches, providing a robust profile capable of supporting significant radial loads while accommodating moderate axial forces in both directions. Constructed from high-grade steel, this component ensures exceptional durability and resistance to deformation under continuous operational stress. The double metal shield design serves a dual purpose by effectively retaining internal lubrication and excluding external contaminants such as dust, debris, and moisture. This sealed configuration eliminates the need for routine maintenance or relubrication, making it an ideal choice for systems requiring long service life and consistent performance in demanding environments.

Key Features

Double metal shield construction for superior contaminant exclusion High-speed capability suitable for electric motor applications Maintenance-free operation due to pre-lubricated internal raceways Precision-ground steel races for minimal friction and heat generation Supports combined radial and axial load conditions Compact dimensions optimized for miniature machinery Consistent rotational accuracy for smooth power transmission

Specifications

Bore Diameter: 0.315 in Outside Diameter: 0.866 in Width: 0.276 in

Material

Steel Shield Type: Double Metal Shield (2Z) Load Capacity: High Radial, Moderate Axial Lubrication: Pre-filled Industrial Grease Package Quantity: 20 units

Applications

High-speed electric motors and spindle drives Miniature gearboxes and transmission systems Office automation equipment including printers and scanners Medical devices requiring precise rotational movement Small industrial fans and blowers Robotics joints and actuator assemblies Power tools and handheld instrumentation Conveyor system rollers and guide wheels

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Frequently Asked Questions

What are the precise dimensions and material composition of these bearings?
These steel miniature deep groove ball bearings feature a 0.315-inch bore diameter, a 0.866-inch outside diameter, and a width of 0.276 inches. Constructed from durable steel, they are designed to withstand rigorous industrial environments while maintaining precise rotational accuracy.
In which applications are these 608-2Z bearings typically used?
Ideal for high-speed, low-torque applications, these bearings are commonly found in electric motors, conveyor systems, and precision instrumentation requiring compact components. The dual metal shields (2Z) provide effective protection against dust and debris without requiring additional maintenance.
How are these bearings packaged and what should I expect regarding model versions?
Each order includes a package quantity of 20 units, ensuring you have sufficient stock for immediate assembly or replacement needs. Please note that shipments may contain either the current 608-2Z model or the legacy 608-2ZR designation randomly, as both meet identical performance specifications.