Referring these two previous questions:
conical bead width shaft: http://www.proz.com/kudoz/english_to_indonesian/engineering_...
upper bead plate motor: http://www.proz.com/kudoz/english_to_indonesian/engineering_...

√ I strongly believe that bead with regard to tiremaking (meaning: the reinforced inner edge of a pneumatic tyre that grips the rim of the wheel) is better absorbed / left untranslated.

√ deformed means a loss of [expected] form, a distorsion or defect (=cacat) in form (=bentuk). A deformed thing may look OK (i.e. not look damaged) but cannot perform its expected function well. For example, any oval or not-100% round tire may look OK in our eyes, but it certainly cannot run well.

REFERENCE ★★★★★
http://www.forda-mof.org/index.php/content/download/jurnal/3...
Pecah dalam (honeycomb defect) dan cacat bentuk (warp / deformation) karena pengeringan pada papan ...

http://id.scribd.com/doc/110298475/LAPORAN-PENELITIAN-PBP
Cacat produk (defect) diklasifikasikan menjadi 2 yaitu pertama kemungkinan-kemungkinan cacat yang digolongkan menjadi 6 group yaitu:
• Cacat lipatan (folds)
• Cacat geser (shear defects)
• Retak (cracks)
• Cacat permukaan (surface defects)
• Cacat bentuk (form defects)
• Cacat struktur (structural defects)