DBA Disc Part Numbering System
Overview
DBA has designed an intuitive numbering system that allows the same underlying part number to be carried through the different DBA rotor series and disc styles.
All disc part numbers will begin with “DBA”, a number prefix is then used to denote the Series, while Suffux’s are used to denote the style.
A part number will be assigned a base part number for a Street Series disc. E.g. DBA040.
Though the addition of prefixes and suffixes, you will be able to easily identify which product number you are after. A part number may have more than one suffix if it has multiple features.
Part number Series
Base part number | Performance Series | |
D B A 0 4 0 |
Street Series |
|
D B A 4 0 4 0 |
4000 Series |
|
D B A 5 0 4 0 |
5000 Series |
The suffix that is applied to a part number may be unique to that series, so it is important to view the whole part number. i.e. a slotted suffix (S) in Street Series is for a T2 slot, where a slotted suffix (S) in 4000 Series and 5000 Series is for a T3 slot. A full list of part number suffix’s is presented below by Series.
The numbers represent the rotor’s base part number, while the suffix ‘letter’ denotes the rotor’s style.
Base part number | Style of Rotor | |
D B A 0 4 0 |
S |
Variations
DBA Part no. | Base number | Suffix | Disc Style |
DBA040 | DBA040 | none | Plain face |
DBA040S | DBA040 | S | Slotted (T2 pattern) |
DBA040X | DBA040 | X | Cross-drilled & dimpled |
DBA040E | DBA040 | E | En-Shield |
DBA040ES | DBA040 | E, S | En-Shield & Slotted (T2 pattern) |
These part numbers start with the prefix number ‘4’ with a suffix ‘letter’ determining the rotor style.
Base part number | Style of Rotor | |
D B A 4 0 4 0 |
S |
Variations
DBA Part no. | Base number | Suffix | Disc Style |
DBA4040 | DBA040 | none | Plain face |
DBA4040S | DBA040 | S | Slotted (T3 pattern) |
DBA4040OESL | OESR | DBA040 | OESL or OESR | Left or right slotted (OE pattern) |
DBA4040CSL | CSR | DBA040 | CSL or CSR | Left or right slotted (Curved pattern), |
DBA4040XS | DBA040 | XS | Cross-Drilled & Dlotted |
DBA4040BLKXS | DBA040 | BLK, XS | Black hat, Cross-Drilled & Slotted |
DBA4040XD | DBA040 | XD | Cross-Drilled & Dimpled |
DBA4040W | DBA040 | W | Wave Design |
5000 series rotors follow DBA’s 4000 series numbering system with the number prefix of ‘5’, however 5000 series rotors have 2 unique aspects:
- 5000 series rotors are a 2-piece design (Aluminium hats and cast iron rings). As such they are available as a complete assembly ready for direct replacement, or the hat or flat discs (rings) available separately.
- 5000 series rotors are often available with different coloured hats
When sold as individual components, it is important to note that the rings (flat discs) will start with a suffix of ‘.1’, hats will start with a suffix of ‘.2’, while a complete assembly will not have either ‘.’ Suffix.
In a complete assembly or ‘.2’ hat replacement only, the hat colour will be included in the part number.
Base part numbers | Description | |
D B A 5 0 4 0 |
Complete assembly | |
D B A 5 0 4 0.1 |
Flat Disc only | |
D B A 5 0 4 0.2 |
Hat only |
5000 series part number structure
DBA 5000 series part numbers are composed in a strict order
Base Part Number | Assembly type | Wave? | Hat colour | Style | Complete DBA part number |
DBA5040 | W | SLV | S | DBA5040SLVWS | |
DBA5040 | .1 | n/a* | S | DBA5040.1S | |
DBA5040 | .2 | SLV | n/a** | DBA5040.2BLK |
*Note: a flat disc (ring) part number ‘.1’ will not have a hat colour associated with the part number
**Note: a hat part number ‘.2’ will not have a disc style associated with the part number
Hat colours
DBA Part no. | Suffix | Colour |
DBA5040BLK | BLK | Black |
DBA5040SLV | SLV | Silver |
DBA5040GLD | GLD* | Gold |
DBA5040BLU | BLU* | Blue |
Note: 5000 Series full assemblies and hat components will contain the hat colour
*Colour available in particular applications only.
Style Variations
DBA Part no. | Base number | Suffix | Disc Style |
DBA5040 | DBA040 | none | Plain face |
DBA5040S | DBA040 | S | Slotted (T3 pattern) |
DBA5040XD | DBA040 | XD | Cross-drilled & dimpled |
DBA5040W | DBA040 | W | Wave design |
*DBA part numbers may also be a flat disc ‘.1’, i.e. DBA5040.1S
5000 Series examples:
DBA Part no. | Base number | Suffix | Description |
DBA5040SLVS | DBA4040 | SLV, S | Complete assembly, Silver hat, Slotted (T3) |
DBA5040BLKXD | DBA4040 | BLX, XD | Complete assembly, Black hat, Cross-drilled & dimpled |
DBA5040SLVWS | DBA4040 | SLV, W , S | Silver hat, Wave design & Slotted (T3) |
DBA5040.1WS | DBA4040 | .1, W, S | Flat disc (ring) only in Wave design and Slotted (T3 pattern) |
DBA5040.2SLV | DBA4040 | .2, SLV | Hat only in Silver colour |