HOME
ABOUT US
TOOLS
RESOURCES
CAREERS
CONTACT US
WHAT'S NEW
Menu
HOME
ABOUT US
About FRANTZ
Our Quality
Our Warranty
TOOLS
Product Selectors »
Conveyor Bearings
Conveyor Wheels
Sheaves
Ball Transfers
Competitor Match-Up »
Conveyor Bearings
Conveyor Wheels
Ball Transfers
Product Indexes »
Conveyor Bearings
Conveyor Wheels
Sheaves
Measurement »
Millimeters to Inches
Fractions to Decimals
Conversion Factors
Inventory Overstock
RESOURCES
Technical Information »
Technical Information
Conveyor Bearing Nomenclature
Conveyor Bearing Mounting Specifications
Conveyor Roller Mounting Types
Tube ID and Gauge
Swage Fit Conveyor Bearing Mounts
Bearing Packaging Options
Steel Ball Packaging
Steel Ball Glossary
Product Catalogs »
Conveyor Bearing Catalog
Conveyor Wheel Catalog
Sheave Catalog
Brochures & Literature
CAREERS
Careers
Employee Information
CONTACT US
Customer Service Email
Maps and Directions to FRANTZ Manufacturing
Contact Your Sales Representative
FRANTZ Garage Door Information
WHAT'S NEW
Videos
News
Press Releases
Providing High Quality, Specialty Product Solutions for Over 100 Years
... Roll Easy with FRANTZ®
Steel Ball Glossary
Lot
A specified number of balls taken as a unit. Balls in a lot are manufactured under presumed uniform conditions and should have very similar characteristics.
Grade
The guaranteed roundness of a ball identified in millionths of an inch. The grade designation is based on a combination of tolerances including dimension, surface roughness, and sphericity. The lower the grade value, the higher the precision of the ball.
Surface Roughness
A measure of the texture of the surface of the steel ball. It is quantified by a measure of the vertical deviations of a real surface from its ideal form. Irregularities on the surface of balls having height, width, and direction.
Sphericity (Deviation from Spherical Form)
A measure of how spherical or the roundness of the steel ball. This is measured by the radial distance from the maximum peak of a perfect circle to the maximum valley from the perfect circle.
T.I.R. (Total Indicated Runout)
A measure of the concentricity of a drilled ball usually measured by a dial indicator.
Nominal Ball Diameter
The value used to make a general identification of a ball size. Eg…1/8” ball.
Ball Diameter Variation
The difference between the largest and smallest actual single diameter measurement.
Lot Diameter Variation
The difference between the mean diameter of the largest ball and the mean diameter of the smallest ball in the lot.
Case Hardening
A heat treatment or a combination of heat treatments of surface hardening involving a change in the composition of the outer layer of an iron-base alloy in which the surface is made substantially harder by inward diffusion of a gas or liquid followed by appropriate thermal treatment. Typical hardening processes are carburizing, cyaniding, carbo-nitriding and nitriding.
Case Depth
The thickness of the case of a hardened steel ball.
Surface Hardness
The ball surface’s ability to withstand penetration by a specific indenting shape. Rockwell testing is one method of measuring surface hardness. It uses a dial reading which indicates the depth of penetration of a steel ball for softer steels and a diamond cone for heat treated and harder steels when a load is applied.
Core Hardness
The ball core’s ability to withstand penetration by a specific indenting shape. The core of the ball is the volume of the sphere below the case of the ball.
Microstructure
The structure of a prepared surface or thin foil of material as revealed by a microscope above 25× magnification. The microstructure of a material can strongly influence physical properties such as strength, toughness, ductility, hardness, corrosion resistance, high/low temperature behavior, wear resistance, and so on, which in turn govern the application of these materials in industrial practice.
Surface Condition
The existence of cracks, pits and rust on the surface of balls when examined visually without magnification.
Product Selector
Click Here
Impact Testing
Steel Conveyor Wheels
Impact Rating
FRANTZ goes the extra mile to provide the industry’s best conveyor wheels!
Click here to learn more.
My Shopping Cart
Your Cart is Currently Empty.
Quality Certifications &
Industry Standards
IATF 16949:2016
CEMA
Capability Statement
www.frantz-mfg.com
|
Privacy Policy
Terms & Conditions of Use
|
2022 FRANTZ Manufacturing Co.
1000 Series - Crimping Tool
300 Series - Crimping Tool
620 Series - Crimping Tool
ABEC-1 Core Precision Bearings
About FRANTZ
About FRANTZ Manufacturing
ABOUT US
Absentee Policy
Advertising Information
Ball Bearing Sheaves, Idler, Pulley and Guide Wheels
Ball Transfers
Ball Transfers
BALLS
Bearing Packaging Options
Brochures & Literature
Burnishing Media
Burnishing Media
Careers
CAREERS
Chamfered Bearings
Competitor Defects
Competitor Match-Up
Contact Felt Seal Conveyor Bearing Protection
Contact FRANTZ Manufacturing
CONTACT US
Contact Your Sales Representative
Conversion Factors
Conveyor Bearing and Conveyor Wheel Quality
Conveyor Bearing Catalog
Conveyor Bearing Mounting Specifications
Conveyor Bearing Nomenclature
Conveyor Bearings
Conveyor Bearings
Conveyor Bearings
Conveyor Roller Mounting Types
Conveyor Wheel Catalog
Conveyor Wheels
Conveyor Wheels
Conveyor Wheels
Conveyor Wheels / Skate Wheels
Core Non-Precision Bearings
Custom Conveyor Roller Details
Custom Conveyor Rollers
Custom Machined and Cold Formed Steel Spacers
Custom Machined Spacers
Customer Service Email
Easy Glider™ Ball Transfers and Ball Casters
Economy Grade Hardened Steel Balls
Economy Grade Hardened Steel Balls
Employee Information
Fitment Tooling Information
Flanged and Straight Faced IronGrip Adapters
Flanged Unground Non-Precision Bearings
Flexible Spending Plan Summary
Fractions to Decimals
FRANTZ Garage Door Information
FRANTZ Health Plan (2009)
FRANTZ Health Plan Amendment
FRANTZ Insert Tools
FRANTZ Specialties
GEN II® Semi-Precision Conveyor Bearings
GenII® Core Semi-Precision Bearings
GenStar® 4003 Series Precision Conveyor Bearings
GenStar® 5000 Series Precision Conveyor Bearings
GenStar® Eliminator Bearings
GenStar® Precision Bearings
GenStar® Precision Conveyor Bearings
Hardened Carbon Steel Balls
Hardened Carbon Steel Balls
Holiday Schedule
HOME
Idler Guide
IL Equal Opportunity Statement
Información Técnica
Inventory Overstock
Maps and Directions to FRANTZ Manufacturing
Measurement
Metric Conveyor Wheels
Metric Flanged Unground Non-Precision Bearings
Metric GEN II® Semi-Precision Conveyor Bearings
Millimeters to Inches
News
Our Quality
Our Warranty
Overhead Conveyor Components
Power Swage 2.5” Flanged Bearings
Precision ABEC-1 - Machined Bearings
Precision Drilled Balls
Precision Ground Drilled Balls
Press and Swage Fit Tooling
Press and Swage Fit Tooling
Press Fit Conveyor Bearing Mounts
Press Releases
Privacy Notice
Privacy Statement
Product Catalogs
Product Indexes
Product Selectors
Radial Thrust Conveyor Bearings
Regreasable & High Temp Conveyor Bearings
Regreasable Conveyor Bearings
Regreasable Conveyor Bearings
RESOURCES
Safety Rules
Services Brochure
Sheave Catalog
Sheaves
Sheaves
Slip and Swage Fit Tooling
Slip and Swage Fit Tooling Details
Soft Ground Polished Balls
Soft Ground Polished Steel Balls
Sprocketed CDLR Conveyor Roller Bearings
Stainless Steel Ball Transfers
Stainless Steel Balls
Stainless Steel Balls
Stainless Steel Conveyor Bearings
Stainless Steel Skate Wheels
Steel Ball Glossary
Steel Ball Packaging
Steel Ball Quality
Steel Balls
Sterling Armor®
Sterling Armor®
Sterling Armor®
Sterling Armor®
Straight Faced Semi-Precision Bearings
Straight Faced Unground Non-Precision Bearings
Swage Fit Conveyor Bearing Mounts
Swage Fit Conveyor Bearing Mounts
Tapered Conveyor Roller Bearings
Technical Information
Technical Information
Terms and Conditions of Use
TOOLS
Tube ID and Gauge
Videos
WHAT'S NEW
What’s New at FRANTZ
Wide Flanged Unground Non-Precision Bearings
Work Rules