16021-C3
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What 16021-C3 means
| Code | Position | Meaning |
|---|---|---|
160 |
Series | Series 160: deep groove ball bearing, narrower than the 60-series equivalent of the same bore |
21 |
Bore | Bore code 21 × 5 = 105 mm |
C3 |
Internal clearance | C3: radial internal clearance greater than Normal |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
16021-C3 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 105 mm | 4.1339 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 160 mm | 6.2992 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Width (B) | 18 mm | 0.7087 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 | C3 (greater than Normal) | 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 | 16021 C3 | Brand suffix convention for this ISO size |
| TIMKEN | 16021 C3 | Brand suffix convention for this ISO size |
| FAG | 16021 C3 | Brand suffix convention for this ISO size |
| NSK | 16021 C3 | Brand suffix convention for this ISO size |
| NTN | 16021 C3 | Brand suffix convention for this ISO size |
| KOYO | 16021 C3 | Brand suffix convention for this ISO size |
| NACHI | 16021 C3 | 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
16021-C3 is a deep groove ball bearing, 105 mm bore × 160 mm OD × 18 mm wide (4.1339 × 6.2992 × 0.7087 in). It has no seals or shields (open) and C3 internal clearance. Other makers sell the same size as SKF 16021 C3, TIMKEN 16021 C3, FAG 16021 C3, NSK 16021 C3.
The 16021-C3 is a deep groove ball bearing with a 105 mm bore diameter from the 160 series. It features C3 radial clearance, providing greater internal clearance than standard bearings for applications involving thermal expansion or shaft/housing fits that reduce operating clearance.
