Customized High Speed Linear Block Bearing Rgh35ca Hgh15ca Rgh30ha Rgh35ha Linear RailInner DiameterVaries by model (Rgh35ca, Hgh15ca, etc.)Outer DiameterModel-specific dimensionsThicknessDesigned…
Egh15ca Multifunctional Stainless Steel Wire Cutting Machines Precision Linear Guides Rail Inner Diameter15 mm Outer Diameter24 mm Thickness8 mm Precision…
Egw20SA Precision Steel Linear Motion Guides Rail for 4-Axis Machining Center Inner Diameter20 mm Outer Diameter35 mm Thickness15 mm Precision-engineered…
Egw30SA High Precision Linear Guideways Rail for Desktop CNC Machining Center Inner Diameter30 mm Outer Diameter45 mm Thickness15 mm Precision-engineered…
China Factory HGH25ha Precision Steel Bearing Rail Guideway for Grinding MachinesSpecifications:Inner Diameter25 mmOuter Diameter35 mmThickness7 mmPrecision-engineered linear guideway made of…
How to choose sealing and load class in Steel Guide Rail
Choose the seal for the contamination at the bearing position first, then the series for the load and duty cycle. Most early failures on conveyors come from a seal that does not match dust, water or washdown, not from the bearing itself.
1. Seal for the environment
Heavy dust and fines: multi-lip seals, flingers or extra shielding
Wet or washdown areas: seals that keep water out of the grease
Clean, dry positions: standard contact seals keep friction low
2. Series for the load
Light and medium shafts: ball bearing pillow block units
Heavy drive and pulley shafts: spherical roller bearing units
Shock loads and 24/7 running: size up for service life
3. Upgrade repeat failures
Same position failing again: review seal and series together
Check these dimensions so the unit fits your frame
Shaft diameter alone does not guarantee fit. A unit with the right bore can still miss the frame if the bolt spacing, centre height or take-up slot differs from the old one.
01Shaft diameterMeasure the shaft at the bearing seat, not the worn section.
02Bolt hole spacing and mounting typePillow block, flange or take-up — note centre-to-centre of the bolt holes.
03Shaft centre height and locking methodSet screw, eccentric collar or adapter sleeve affects replacement.
04Photos of unmarked unitsSend photos with measurements and the matching unit is identified for you.
These units serve conveyor and transmission positions in mines, ports, cement plants, aggregate sites and logistics centres running heavy, dusty, continuous duty.
"We ordered a bulk set of conveyor pulley bearings plus general machinery bearings for our annual shutdown project. Every reference matched our specification, the shipment arrived ahead of the outage date, and our maintenance team completed the job on schedule."
SPSergey PetrovUral Cement Plant, Russia
Request a Quote
Get a written quote for Steel Guide Rail
Tell us the conveyor position, unit model or shaft size, mounting dimensions, operating conditions and quantity. Your quote lists model, price, currency, stock status, lead time and shipping terms.