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Steel guide rollers keep bi-fold doors running within a guide channel, so the door follows a defined path instead of wandering and rubbing. These Hettich America Corporation rollers are part of a bi-fold door hardware system, giving the bottom of the door a controlled rolling point that supports smoother movement. The GUIDE ROLLER 50141 is designed for 3/4 inch thick doors, so it targets a common door thickness in residential and light commercial bi-fold installations. With a roller diameter of 1/2 inch, the contact point in the guide channel stays compact, which helps the door track without feeling bulky at the floor line. A roller height of 13/32 inch defines how far the wheel stands off the mounting plate, influencing how the door edge lines up within the guide channel during operation.
The guide roller plate dimensions of 3/4 inch width and 3-1/2 inches length give a defined rectangular footprint along the bottom of a 3/4 inch thick door, which guides layout for mounting. With a plate height of 3/32 inch, the metal under the door edge adds only a small build-up, limiting how much the hardware changes the overall door clearance at the floor line. The 1/2 inch roller diameter and 13/32 inch roller height work together to position the wheel within a matching guide channel, supporting consistent tracking. The 5/16 inch post diameter and 2-1/2 inch post height create a vertical support that holds the roller at the set elevation, which affects how the door edge rides in the channel during opening and closing.
This GUIDE ROLLER 50141 is specified for 3/4 inch thick doors, placing it in bi-fold installations that use that common thickness for panels. The 3/4 inch plate width mirrors that door size, so the plate can align with the door edge profile along the bottom. Because it is a steel guide roller used with guide channels, it occupies the lower guide position in a bi-fold door hardware layout, where the door engages a floor or jamb-mounted track. The 1/2 inch roller diameter lets the wheel nest within a guide channel sized for this style of door control, helping the panel move along the channel path rather than swinging off line. With a roller height of 13/32 inch above the plate surface, the door edge sits at a set distance from the track base, which influences clearances at the finished floor or threshold.
The plate length of 3-1/2 inches gives a consistent mounting reference that can be repeated across matching doors, helping multiple bi-fold panels share the same guide position. A low 3/32 inch plate height keeps the metal close to the door surface, which helps maintain the original door reveal relationships when the hardware is installed. The 5/16 inch post diameter provides a defined shaft size for the roller, which supports the 1/2 inch diameter wheel as it rolls within a compatible guide channel. A post height of 2-1/2 inches sets the vertical distance between the plate and the roller, establishing how the door edge is held relative to the track bottom for repeated installations. As a steel guide roller used with guide channels under the Bi-Fold Door Hardware class, it serves as a dedicated guiding point that helps doors run predictably along their intended route.
This steel guide roller is described for 3/4 inch thick doors, so its plate width and overall layout match that door thickness in bi-fold door hardware setups.
The 1/2 inch roller diameter creates a compact rolling surface that fits into a guide channel, helping the bi-fold door stay aligned along its track path during operation.
The 3-1/2 inch plate length spreads the mounting area along the door bottom, helping support the guide roller load over more door material for stable guiding.
The 2-1/2 inch post height sets how high the roller sits above the plate, which positions the door edge within the guide channel at a consistent elevation during movement.
The plate height is 3/32 inch, so the steel plate adds minimal build-up on the door surface, helping maintain clearances near the floor or threshold area.
This GUIDE ROLLER 50141 is a steel guide roller used with guide channels, providing the lower guiding function within a bi-fold door hardware system.
The GUIDE ROLLER 50141 from Hettich America Corporation combines a 3/4 inch wide, 3-1/2 inch long plate with a 1/2 inch diameter steel roller to guide 3/4 inch thick bi-fold doors in a channel. With defined dimensions for plate, roller, and post, this bi-fold door hardware component gives installers clear reference points when positioning the guide at the door bottom. For projects using steel guide rollers with guide channels on 3/4 inch doors, this part number delivers a matched set of measurements that support consistent door travel.
Sold In: 1 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  HT1222-4 Mfr# 50142 | Bi-Fold Door Hardware Components - 3/4" Thick Doors Floor Mount Aluminum Guide Channels, 4' |