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Industrial · SKU: MT6624
Steel Miniature Ball Bearing 0.31in Bore 0.87in OD, Pkg Qty 20
Engineered for precision applications, these steel miniature ball bearings feature a 0. 31-inch bore and a 0.
Volume Pricing - Buy More, Save More
| Quantity | Discount | Unit Price |
|---|---|---|
| 1 - 10 | - | $109.99 |
| 11 - 50 | -5% | $104.49 |
| 51+ | -10% | $98.99 |
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Quick Answer
How Buyers Should Evaluate Steel Miniature Ball Bearing 0.31in Bore 0.87in OD, Pkg Qty 20
Engineered for precision applications, these steel miniature ball bearings feature a 0. 31-inch bore 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: 0.31 in
- Outside Diameter: 0.87 in
- Material: Steel
Purchase Details
- Online price starts at $109.99.
- 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 Diameter | 0.31 in |
| Outside Diameter | 0.87 in |
| Material | Steel |
| Inside Diameter | 0.31 in |
| Length | 0.28 in |
Full Description
Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.
Overview
These miniature ball bearings are engineered for high-precision applications where space constraints and rotational accuracy are critical. Constructed from durable steel, they deliver exceptional load capacity and resistance to wear in demanding industrial environments. The compact design features a 0.31-inch bore and a 0.87-inch outside diameter with a slim 0.28-inch width, making them ideal for integration into small-scale machinery and intricate mechanical assemblies. Each unit incorporates a double-shielded configuration that effectively seals internal components against dust, debris, and moisture while retaining essential lubrication for extended service life. Supplied in convenient packages of 20 units, this solution offers significant value for maintenance teams and original equipment manufacturers requiring consistent quality and tight tolerances.
Key Features
Double-shielded design protects against contaminants and retains lubrication High-grade steel construction ensures superior durability and wear resistance Precision-ground races provide smooth rotational movement with minimal friction Compact profile fits easily into confined spaces without sacrificing performance Consistent dimensional accuracy supports reliable operation in sensitive equipment Bulk packaging of 20 units reduces per-unit cost for large-scale projects
Specifications
Bore Diameter: 0.31 in Outside Diameter: 0.87 in Width: 0.28 in
Material
Steel Shield Type: Double Shielded (ZZ) Load Capacity: High radial and axial load ratings Tolerance Class: ABEC-1 standard precision Lubrication: Pre-lubricated for immediate installation Package Quantity: 20 units per pack
Applications
Small electric motors and gearboxes Precision instrumentation and medical devices Robotics joints and actuator systems Office automation equipment including printers and scanners Miniature pumps and fans Model aerospace components and drones Textile machinery spindles Food processing equipment requiring sealed bearing solutions
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