SR1

SR1 Inch Size Miniature Ball Bearings
$16.20 /Each    info

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Overview

Part Number SR1

Characteristics

System of Measurement Inch
Bearing Type Ball
Seal Type Open
Inner Ring Type Standard
For Load Direction Radial
Construction Single Row
Ball Qty 6
Tolerance Class ABEC1

Dimensions

Bore Dia 0.05556"
Bore Dia Tolerance -0.0003" to 0"
Outer Dia 0.1875"
Outer Dia Tolerance -0.0003" to 0"
Width 0.0781"
Width Tolerance -0.005" to 0"
Ball Dia 0.03941"
Radial Clearance 0.0002" to 0.00039"
Radial Clearance Trade No MC3

Material

Ring Material Stainless Steel
Ball Material Stainless Steel
Cage Material Stainless Steel

Performance

Dynamic Radial Load 40 lbf
Static Radial Load 11 lbf
Max Speed (X1000 rpm) 81
Temperature Range -86 to 230 °F

Properties

Lubrication Required
RoHS Compliant
REACH Compliant
Weight 0.15 g
SR1 Inch Size Miniature Ball Bearings data sheet
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CAD1
INTERCHANGE
The LILY Bearing part series SR1 is a potential replacement for these common bearing part numbers.
LILY
LSR1
NMB
DDRI-3
DYNAROLL
SR1
EZO
SR1
NHBB
SSRI-3
GRW
SS1397
BARDEN
SR1
MPB (Timken)
S3C
RMB
R1706X
FAG
SR0412
EZO
SR1 P6MC3SRL

NOTE:All other trademarks are the property of their respective owners.

All other trademarks mentioned herein are used for the purpose of compatibility description and product identification only. Lily Bearing is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.

Purpose-built for precision applications operating within inch-dimensioned mechanical systems, these miniature ball bearings are engineered to deliver smooth, reliable rotation in the most compact and demanding configurations. Their inch-based dimensional standards ensure seamless compatibility with North American and Imperial-specification equipment, eliminating the need for adapters or custom modifications during installation. Manufactured from premium stainless steel, they provide exceptional resistance to corrosion, oxidation, and moisture ingress, making them a dependable solution for medical devices, laboratory instruments, food processing equipment, and other hygiene-critical applications where dimensional accuracy and long-term performance are equally essential.

 

Designed to meet the stringent demands of precision engineering within inch-dimensioned mechanical assemblies, these miniature ball bearings offer consistent rotational accuracy and dependable performance across a broad spectrum of compact applications. Their inch-based dimensional standards guarantee direct compatibility with North American and Imperial-specification machinery, enabling straightforward integration without the need for additional modification or adaptation. Featuring an open seal design, they allow for direct lubrication access and flexible maintenance scheduling, making them an optimal choice for clean, controlled environments such as precision instruments, optical devices, and automated laboratory equipment where accessibility and operational efficiency are equally critical.

 

Engineered to perform with exceptional accuracy in inch-dimensioned mechanical systems, these miniature ball bearings are purpose-designed to meet the precise rotational and load-handling requirements of compact, high-performance assemblies. Their inch-based dimensional standards ensure direct interchangeability with North American and Imperial-specification equipment, streamlining the installation process and reducing downtime across a wide range of mechanical configurations. Fitted with stainless steel balls, they deliver outstanding corrosion resistance and reliable performance in moisture-rich, hygienic, and chemically exposed environments, making them an ideal solution for medical instrumentation, dental equipment, food processing machinery, and laboratory devices where cleanliness and operational consistency are equally paramount.

 

What are the advantages of stainless steel rings in miniature ball bearings?

Stainless steel rings provide exceptional corrosion and oxidation resistance, ensuring that both inner and outer rings maintain precise dimensional tolerances and structural integrity even in humid, moisture-rich, or chemically exposed environments. Their inherent surface hardness and wear resistance contribute to consistent rotational accuracy and smooth operation throughout the bearing's service life. These properties make stainless steel ring bearings an ideal choice for medical instrumentation, dental equipment, food processing machinery, and laboratory devices where material safety, hygiene compliance, and long-term reliability are essential.

 

Why choose an open seal type for inch-size miniature ball bearings?

An open seal type allows direct and unrestricted access for lubrication, enabling precise control over the type and quantity of lubricant applied to suit specific operating conditions. This unrestricted design also minimizes rotational torque and friction, allowing the bearing to achieve higher rotational speeds with reduced heat generation compared to shielded or sealed alternatives. These characteristics make open seal Inch Size Miniature Ball Bearings particularly well-suited for clean, controlled environments such as precision instruments, optical equipment, laboratory devices, and automated machinery where accessibility, low torque, and customizable lubrication are equally essential.

 

How does stainless steel ball material improve bearing performance?

Stainless steel balls enhance bearing performance by delivering outstanding corrosion resistance and dimensional stability, ensuring that ball surfaces maintain precise geometry and surface finish integrity even under prolonged exposure to moisture, humidity, and corrosive media. Their excellent hardness uniformity and surface smoothness effectively reduce vibration and noise levels during high-speed rotation, contributing to more accurate and stable rotational performance throughout the bearing's service life. These characteristics make stainless steel ball Inch Size Miniature Ball Bearings an ideal solution for medical instrumentation, dental equipment, food processing machinery, and laboratory devices where corrosion resistance, operational consistency, and long-term reliability are equally essential.

 

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