6904-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 6904-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) |
04 |
Bore | Bore code 04 × 5 = 20 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.
6904-ZZ specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 20 mm | 0.7874 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 37 mm | 1.4567 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 9 mm | 0.3543 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 | 6904 2Z | Brand suffix convention for this ISO size |
| TIMKEN | 6904 ZZ | Brand suffix convention for this ISO size |
| FAG | 6904 2ZR | Brand suffix convention for this ISO size |
| NSK | 6904 ZZ | Brand suffix convention for this ISO size |
| NTN | 6904 ZZ | Brand suffix convention for this ISO size |
| KOYO | 6904 ZZ | Brand suffix convention for this ISO size |
| NACHI | 6904 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
6904-ZZ is a deep groove ball bearing, 20 mm bore × 37 mm OD × 9 mm wide (0.7874 × 1.4567 × 0.3543 in). It has metal shields on both sides. Other makers sell the same size as SKF 6904 2Z, TIMKEN 6904 ZZ, FAG 6904 2ZR, NSK 6904 ZZ.
The 6904-ZZ is a single row deep groove ball bearing with metal shields on both sides, featuring a 20mm bore diameter, 37mm outside diameter, and 9mm width. The double shield design (ZZ suffix) provides protection against contaminants while retaining lubrication for extended service life.
6904 ZZ 6900 (61900) Series Ball Bearing
