6404
Tier-one manufacturer — brand supplied may vary ✓ Dimensions checked: ISO table and supplier data agreeRegular price
$71.18 USD
Regular price
Sale price
$71.18 USD
Unit price
per
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Bore20 mm
0.7874 in
Outside dia.72 mm
2.8346 in
Width19 mm
0.748 in
TypeDeep groove ball bearing
SealingOpen
ClearanceNormal
Ships from US partner stock — flat-rate shipping, calculated by weight at checkout
Equivalent to
SKF 6404TIMKEN 6404FAG 6404NSK 6404NTN 6404+2 more →
Image is for illustration purposes only.
What 6404 means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
4 |
Diameter series | Diameter series 4 (heavy): fixes OD and width for the bore (ISO 15) |
04 |
Bore | Bore code 04 × 5 = 20 mm |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6404 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 20 mm | 0.7874 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 72 mm | 2.8346 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Width (B) | 19 mm | 0.748 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Bearing type | Deep groove ball bearing | Stated by the designation | |
| Seals / shields | Open (no seals or shields) | 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 | 6404 | Brand suffix convention for this ISO size |
| TIMKEN | 6404 | Brand suffix convention for this ISO size |
| FAG | 6404 | Brand suffix convention for this ISO size |
| NSK | 6404 | Brand suffix convention for this ISO size |
| NTN | 6404 | Brand suffix convention for this ISO size |
| KOYO | 6404 | Brand suffix convention for this ISO size |
| NACHI | 6404 | 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
6404 is a deep groove ball bearing, 20 mm bore × 72 mm OD × 19 mm wide (0.7874 × 2.8346 × 0.748 in). It has no seals or shields (open). Other makers sell the same size as SKF 6404, TIMKEN 6404, FAG 6404, NSK 6404.
Measurement Type
Metric
Inner Diameter (ID)
20 mm
Outside Diameter (OD)
72 mm
Width
19 mm
Sealing
Open
Precision Class
ABEC 1 | ISO P0
Other Features
Single Row | Deep Groove Ball Bearing
Component
Assembly
Weight (kg)
0.4
Basic Number
6404
UNSPSC
31171504
