6903-ZZ
Tier-one manufacturer — brand supplied may vary ✓ Dimensions checked: ISO table and supplier data agreeCouldn't load pickup availability
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What 6903-ZZ means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
9 |
Diameter series | Diameter series 9 (very thin): fixes OD and width for the bore (ISO 15) |
03 |
Bore | Bore code 03 = 17 mm (codes 00, 01, 02 and 03 are fixed at 10, 12, 15 and 17 mm) |
ZZ |
Closure | Metal shields, both sides |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6903-ZZ specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 17 mm | 0.6693 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 30 mm | 1.1811 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 7 mm | 0.2756 in | ISO table for this designation, confirmed by supplier data |
| Bearing type | Deep groove ball bearing | Stated by the designation | |
| Seals / shields | Metal shields, both sides | Stated by the designation | |
| Internal clearance | Normal (CN): no clearance code in the designation | Stated by the designation | |
| Tolerance class | Normal (ISO P0 / ABEC 1): no tolerance-class code | Stated by the designation | |
Equivalent to / interchanges with
| Brand | Part number | Basis |
|---|---|---|
| SKF | 6903 2Z | Brand suffix convention for this ISO size |
| TIMKEN | 6903 ZZ | Brand suffix convention for this ISO size |
| FAG | 6903 2ZR | Brand suffix convention for this ISO size |
| NSK | 6903 ZZ | Brand suffix convention for this ISO size |
| NTN | 6903 ZZ | Brand suffix convention for this ISO size |
| KOYO | 6903 ZZ | Brand suffix convention for this ISO size |
| NACHI | 6903 ZZE | Brand suffix convention for this ISO size |
Equivalents are dimensional and closure-for-closure: same bore, outside diameter, width, seals or shields and internal clearance. Bearing interchange tables
6903-ZZ is a deep groove ball bearing, 17 mm bore × 30 mm OD × 7 mm wide (0.6693 × 1.1811 × 0.2756 in). It has metal shields on both sides. Other makers sell the same size as SKF 6903 2Z, TIMKEN 6903 ZZ, FAG 6903 2ZR, NSK 6903 ZZ.
The 6903-ZZ is a deep groove ball bearing with metal shields on both sides, featuring a 17mm bore diameter, 30mm outside diameter, and 7mm width. The double-shielded design protects the bearing from contaminants while retaining lubrication for extended service life.
6903 ZZ 6900 (61900) Series Ball Bearing
