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Stainless Steel Ball Bearing 0.2in Bore 0.31in OD for Miniature Apps, Pkg Qty 20

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Industrial · SKU: JR9393

Stainless Steel Ball Bearing 0.2in Bore 0.31in OD for Miniature Apps, Pkg Qty 20

Engineered for precision miniature applications, this stainless steel ball bearing delivers reliable performance in corrosive environments. Featuring 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 Stainless Steel Ball Bearing 0.2in Bore 0.31in OD for Miniature Apps, Pkg Qty 20

Engineered for precision miniature applications, this stainless steel ball bearing delivers reliable performance in corrosive environments. Featuring 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: 0.2 in
  • Outside Diameter: 0.31 in
  • Material: Stainless 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 Diameter0.2 in
Outside Diameter0.31 in
MaterialStainless Steel
Inside Diameter0.2 in
Length0.1 in
Product Details

Full Description

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

Overview

This miniature stainless steel ball bearing is engineered for high-precision applications where space constraints and environmental resistance are critical factors. Designed to operate smoothly in corrosive or sterile environments, the unit eliminates the need for additional plating by utilizing solid stainless steel construction throughout. With a compact footprint featuring a 0.2-inch bore and a 0.31-inch outside diameter, this component fits seamlessly into tight assemblies found in medical instrumentation, optical devices, and precision robotics. The low-profile design, measuring just 0.1 inch in width, allows for integration into lightweight mechanisms without compromising structural integrity or rotational performance. Each package contains 20 units, providing an efficient supply solution for OEM production lines and industrial maintenance teams requiring consistent replacement parts.

Key Features

Solid stainless steel construction provides superior resistance to oxidation and chemical exposure Precision-ground raceways ensure smooth rotation and minimal friction at high speeds Compact 0.1-inch width ideal for space-constrained miniature assemblies Double-shielded design protects internal components from dust and debris contamination Consistent load distribution supports reliable operation in sensitive instrumentation Packaged in sets of 20 to streamline inventory management and reduce procurement overhead

Specifications

Bore Diameter: 0.2 in Outside Diameter: 0.31 in Width: 0.1 in

Material

Stainless Steel Shield Type: Double Metal Shield (ZZ) Tolerance Class: ABEC-1 Standard Load Capacity: Radial and Axial Package Quantity: 20 units

Applications

Medical surgical tools and diagnostic equipment Miniature electric motors and gearboxes Optical lens adjustment mechanisms Food processing machinery requiring washdown capability Laboratory automation and robotic arms Aerospace instrumentation and control systems Dental handpieces and precision drills Marine electronics exposed to saltwater environments This bearing series addresses the specific needs of industries that demand both miniaturization and durability. The use of stainless steel ensures that the component maintains its mechanical properties even when subjected to harsh cleaning agents or humid conditions. The double-shield configuration offers a balanced approach to protection, keeping lubricants inside while preventing external contaminants from entering the rolling elements. This design choice extends service life and reduces the frequency of maintenance intervals. Engineers specifying this part can rely on its standardized dimensions to replace existing components or design new systems with confidence. The uniformity across the 20-unit pack guarantees that every bearing meets the same rigorous standards for roundness and surface finish. Whether used in high-speed rotating applications or slow-moving precision adjustments, this bearing delivers consistent torque characteristics and noise reduction. Its versatility makes it a standard choice for designers working across multiple sectors where reliability cannot be compromised by size limitations or environmental factors.

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Frequently Asked Questions

What are the exact dimensions and material composition of these bearings?
These stainless steel ball bearings feature a 0.2-inch bore diameter, a 0.31-inch outside diameter, and a width of 0.1 inch. They are constructed entirely from corrosion-resistant stainless steel, making them suitable for environments where moisture or chemicals are present.
What types of applications are best suited for this specific bearing size?
Due to their miniature footprint, these bearings are ideal for high-speed, low-load applications such as small electric motors, dental handpieces, and precision robotics. Their compact design allows for integration into tight spaces where standard-sized bearings would not fit.
How are these bearings packaged and what is the minimum order quantity?
The bearings are sold in pre-sealed packs containing 20 units per package to ensure cleanliness and prevent damage during storage. This pack size serves as the standard minimum order quantity, streamlining inventory management for prototyping or small-batch production runs.
Stainless Steel Ball Bearing 0.2in Bore 0.31in OD for Miniature Apps, Pkg Qty 20 | Machrio