BOTTOM ROLLERS

Our wheels are machined from solid steel plate for durability and strength. Standard sizes range from 6" to 24" diameters. When required, for larger doors under extreme loads, wheels are machined from carbon steel and treads are flame hardened to a required Brinell hardness. Standard or custom retro-fit. Bearings are tapered roller type, arranged so that both the vertical loads and the horizontal wind loading will be transmitted from the door through the bearings. The bearings are provided with a dust seal to retain the grease and prevent the entrance of dirt. Axles are equipped with grease fittings for pressure lubrication. The following chart is a quick reference for matching our standard rollers to the proper door size. This chart is to be used only as a guideline. Design assistance is available upon request. More detailed descriptions of the parts follow. PART NUMBER VERTICAL LOAD POUNDS THRUST LOAD POUNDS MAX. DOOR SIZE SQ. FT. Max. Rail Size BR-6 7500 3000 250 20# BR-9 10000 4000 400 25# BR-12 16000 5000 500 30# BR-15L 16000 5000 500 30# BR-15H 27000 11000 750 40# BR-18 33000 22000 1000 80# BR-24 64000 22000 1000 100# MODEL BR-6" BOTTOM ROLLER (6" TREAD DIAMETER) Complete in adjustable assembly. Ideal for lighter weight rolling doors. Maximum door size 250 sq. ft. Assembly weight 30 pounds. MODEL BR-12" BOTTOM ROLLER (12" TREAD DIAMETER) Complete in adjustable assembly. Available with sprocket for drive assemblies. Also available with locking brake. Maximum door size 500 sq. ft. Assembly weight 131 pounds. MODEL BR-15" LIGHT BOTTOM ROLLER (15" TREAD DIAMETER) Complete in adjustable assembly. Available with sprocket for drive assemblies. Also available with locking brake. Maximum door size 500 sq. ft. Assembly weight 131 pounds. MODEL BR-15" HEAVY BOTTOM ROLLER (15" TREAD DIAMETER) Complete in adjustable assembly. Available with sprocket for drive assemblies. Also available with locking brake. Maximum door size 750 sq. ft. Assembly weight 215 pounds. MODEL BR-18" BOTTOM ROLLER (18" TREAD DIAMETER) Complete in adjustable assembly. Available with sprocket for drive assemblies. Also available with locking brake. Maximum door size 1000 sq. ft. Assembly weight 300 pounds. MODEL BR-24" BOTTOM ROLLER (24" TREAD DIAMETER) Our 24" Bottom Roller is designed for extreemly large applications. Custom design assistance is available.

To order this product or for answers to any questions you may have call  1-866-815-8151 or click here to request a quote.
TOP GUIDES
Our Single Wheel Top Guide is a substantial top guide. Designed to handle lare wind loading on openings with little deflection. Standard sizes range from 5" diameter to 10" diameter wheels. Special sizes are available upon request. Wheels are solid steel with Oilite bronze bushings for permanent lubrication. Double Wheel Top Guide As with our Single Wheel Top Guide our Double Wheel Top Guide is designed to handle large wind loads. For wide panels (10" or wider). Standard with 6" diameter wheels. Wheel and hole spacing as required. Wheels are equipped with Oilite bronze bushings for permanent lubrication.
Single Angle Top Guide For straight sliding doors not over 6" thick. Multiple parallel doors are readily guided with minimum superstructure metal. One guide angle per door run. Ideal for use with our 9" or 12" Bottom Rollers. Wheels are equipped with Oilite bronze bushings for permanent lubrication. Also available with rubber bumper stops. Made right or left hand. I-Beam Top Guide Designed to allow for slight roof deflection. For doors using at least an 8" channel. Wheel spacing and leg height as required for beam size and deflection. Wheels are equipped with Oilite bronze bushings for permanent lubrication. Load rating based on leg height.
Telescoping Top Guide For large doors where greater roof deflection is required. Supplied with 4 each horizontal and 4 each vertical rollers. Wheels are equipped with bronze Oilite bushing for permanent lubrication. Units are sized per application. Design assistance available upon request. Custom manufactured parts are available, and as always, design assistance is available.
To order this product or for answers to any questions you may have call  1-866-815-8151 or click here to request a quote.

228  Nevada St. El Segundo CA 90245 
Toll Free: (866) 815-8151 Phone: (310) 648-7601 Fax: (310) 648-7607
E-mail: info@barndoorhardware.com  LIC #728067