Center hung pivot, 500lb with bottom base mount
Maximum door load 500 pounds
Recommended for use with 1 3⁄4" minimum door thickness
Not recommended for doors larger than 4'0" X 8'0"
Easy installation, tilt on bearing and bearing pin
Adjustable floor to door clearance 3⁄16" to 3⁄4", consult
product support if greater than 3⁄4"
Vertical adjustment range 3⁄16", with positive locking
Non-handed
7255 Set (7255 Top and 7255 Btm)
7255 Top (7253-7255-7255J-7256 Top), header mount
7255 Btm (7255 Btm), base plate mount
Specifications
Material substrate Made from cast brass
Certifications Meets ANSI/BHMA A156.4 C07032
Dimensions § Radius stop (A) to clear heel of door edge
§ Pivot distance (B) 1 3⁄4" (44mm) minimum from jamb to centerline of pivot
pin. Radius heel edge of door, 1 5⁄8" (41mm) minimum recommended.
§ Clearance from bottom edge of door to floor mounting surface is
adjustable from 3⁄16" (5mm) to 3⁄4" (19mm) by varying the depth of the
mortise (C) in the bottom of the door, refer to Chart D. Consult product
support when clearance is over 3⁄4" (19mm).
Table D
Clearance depth of mortise
3⁄16" (5mm) 1 3⁄16" (30mm)
3⁄8" (10mm) 1" (25mm)
1
⁄2" (13mm) 7
⁄8" (22mm)
5⁄8" (16mm) 3⁄4" (19mm)
3⁄4" (19mm) 5⁄8" (16mm)