- Product Information
SB403030‑2BB Solid Brass 2 Ball Bearing Butt Hinge 4"×3"×3.0mm
Important: 2BB = 2 Ball Bearings. Genuine ball‑bearing construction, not plain joint or washer‑type hinge.
Dimension 4.0" × 3.0" × 3.0mm. Recommended 3 pieces per door leaf, suitable for door weight up to 60‑80Kgs. Multiple decorative brass‑based surface finishes for residential and commercial high‑frequency wooden door projects.
| Model No. | Dimension (H × W × T) | Construction |
|---|
Related 2BB Series Models: SB302020‑2BB, SB302520‑2BB, SB403020‑2BB, SB303020‑2BB, SB403520‑2BB, SB404020‑2BB, SB353525‑2BB, SB353025‑2BB, SB403025‑2BB, SB404025‑2BB, SB503025‑2BB, SB503525‑2BB, SB504025‑2BB, SB403030‑2BB, SB403530‑2BB, SB404030‑2BB, SB454030‑2BB, SB454530‑2BB, SB503030‑2BB, SB503530‑2BB, SB504030‑2BB, SB604030‑2BB, SB605030‑2BB, SB454035‑2BB, SB454535‑2BB, SB505035‑2BB, SB403540‑2BB, SB454040‑2BB, SB454540‑2BB, SB503040‑2BB, SB504040‑2BB, SB505040‑2BB, SB604040‑2BB, SB504045‑2BB, SB504545‑2BB
2.0mm leaf thickness: 25 ~ 40Kgs per door
2.5mm leaf thickness: 40 ~ 60Kgs per door
3.0mm leaf thickness: 60 ~ 80Kgs per door
3.5mm leaf thickness: 80 ~ 120Kgs per door
4.0mm leaf thickness: 120 ~ 150Kgs per door
Installation advice: 3 pieces per door leaf
| Code | Full Finish Name |
|---|---|
| S&L | Satin Brass |
| P&L | Polished Brass |
| GP | Gold Plated |
| AB | Antique Brass |
| AC | Antique Copper (brass substrate, surface antique copper coating) |
High‑frequency residential & commercial interior wooden doors
Hotel, office, public building heavy‑traffic doors
High‑end joinery & renovation projects requiring smooth quiet operation
2 Precision Ball Bearings‑Dual ball‑bearing sets inside knuckle ensure ultra‑smooth, quiet and long‑lasting door rotation.
Solid Brass Body‑Corrosion‑resistant brass material, stable performance for high‑frequency usage.
Wide Size & Thickness Range‑Full 2BB series from 2.0mm to 4.5mm leaf thickness covers light to heavy door applications.
Rich Decorative Finishes‑Multiple finish options to match complete door hardware sets.
OEM Acceptable‑Custom logo engraving and special packing for bulk orders.