How to Measure Pipe Size: Outside Diameter and NPS Chart
Learn how to measure pipe size with calipers or circumference. Use NPS, DN, outside diameter and Schedule 40/80 charts to identify the right pipe size.
All articles by Robert
Types of Pipe Fittings: Elbows, Tees, Unions and More
Explore 12 common types of pipe fittings, their functions, materials and connection methods. Learn what to check when choosing fittings for a piping system.
NPT Thread Chart: Sizes, TPI and How to Identify
NPT thread chart for 1/16 to 4 inch sizes with TPI, pipe OD, E0 and L1. Learn how to identify NPT threads and tell them apart from BSP.
Bearing Size Chart: Ball, Roller & Thrust Bearing Dimensions
Find bearing sizes by bore (ID), outer diameter (OD), and width. Compare ball, roller, and thrust bearing charts, decode bearing numbers, and check fit.
Types of Bearings: Designs, Loads, Uses and Selection
Compare ball, roller, plain and other bearing types by load, motion and application. Learn key limitations and the checks needed to select the right design.
Thread Pitch Explained: Metric & Inch Charts and Measurement
Find metric and UNC/UNF thread pitch charts, convert TPI to millimeters, and measure screw threads correctly before choosing matching bolts and nuts.
Polyurethane Rollers with Bearings: Types, Mounting & Uses
Compare polyurethane rollers with bearings, including bore-mounted and stud-mounted designs. Check mounting, seals, dimensions, and application requirements.
Chain Pitch Explained: Definition, Measurement & Chain Pitch Chart
Learn what chain pitch means, how to measure it, and compare common ANSI sizes in inches and mm. Check sprocket compatibility and account for chain wear.
Roller Chain Size Chart: ANSI Dimensions and How to Measure Yours
Roller chain size chart: ANSI pitch, roller diameter, pin diameter, and tensile strength for #25–#240, plus how to measure a chain.
Qualifying a Polyurethane Roller Supplier: Technical & Commercial Criteria
Learn how to qualify a polyurethane roller supplier with confidence. Covers manufacturing capability, QMS, material traceability, lead times, and a 100-point weighted scorecard for procurement teams.