- Product Information
CH‑45‑CB2 4.5 Inch Standard‑Weight Concealed Bearing Commercial Butt Hinge
Installation recommendation: Minimum 2 pieces per commercial door.
| Model No. | Dimension (H × W × T) | Leaf Corner | Bearing Type | Rated Door Weight |
|---|---|---|---|---|
| CH‑45‑CB2 | 4.5" × 4.5" × 2.7mm | Square‑Corner | Concealed Bearing | 50‑60Kgs |
2.7mm standard leaf thickness: 50‑60Kgs door weight rating
Installation advice: 2‑3 pieces per commercial door
For dry indoor application; not for high‑frequency heavy‑traffic or continuously humid locations
| Code | Full Finish Name | Process Description |
|---|---|---|
| SC | Satin Chrome Plated | Cold‑rolled steel substrate, satin chrome electroplated finish |
| SN | Satin Nickel Plated | Cold‑rolled steel substrate, satin nickel electroplated finish |
| MB | Matte Black Plated | Cold‑rolled steel substrate, matte black electroplated finish |
| US10B | Oil‑Rubbed Bronze US10B | Cold‑rolled steel substrate, antique oil‑rubbed bronze electroplated US standard finish |
Medium‑traffic commercial & institutional interior passage doors
Office buildings, public facilities, school interior room doors
Projects requiring neat uniform knuckle appearance without exposed ball‑bearing components
Concealed Internal Bearing‑Smooth operating performance with tidy external knuckle visual effect.
Standard‑Gauge 2.7mm Leaf‑Balanced strength and cost‑efficiency for general commercial duty.
Square‑Corner 4.5" US Standard Size‑Compatible with standard commercial door prep dimensions.
Cold‑Rolled Steel Base‑Solid structure, multiple electroplated finish selections.
OEM Acceptable‑Custom logo & bulk‑order special packing available.