61904-2Z-C3 Deep Groove Ball Bearings 2Z Design, Self-retaining, Gap Seals
The 61904-2Z-C3 Single-row deep groove ball bearings are widely used in various rotating machinery, such as: electric motors (general-purpose motors, household appliances), automotive wheel hubs, industrial gearboxes, agricultural machinery, pumps and compressors, conveying equipment, and power tools.
The 61904-2Z-C3 bearing is a Deep groove ball bearings 2Z design, self-retaining, Gap seals with an inner diameter of 20 mm , an outer diameter of 37 mm, a width of 9 mm. GCr15SiMn rings, Its dynamic radial rated load is approximately 6238 N, its static radial rated load is approximately 3633 N. It uses C3 standard radial clearance, 2Z = Gap seals on both sides type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
61904-2Z-C3 bearings ( 20 mm x 37 mm x 9 mm) have the advantages of simple structure, ability to withstand radial and bidirectional axial loads, low friction, and high speed, it is suitable for high-speed, low-noise applications, and are therefore widely used in the Motors, home appliances, automobiles, pumps, compressors, conveying equipment and general industrial machinery.
| Part Number | 61904-2Z-C3 |
| Reference From | FAG 61904-2Z-C3 |
| Bearing Type | Deep groove ball bearings 2Z design, self-retaining, Gap seals |
| Series | 619..-2Z |
| Sealing | 2Z = Gap seals on both sides |
| Cage | JN = Stamping steel cage |
| Radial internal clearances | C3 |
| Weight [lb] | 0.082 |
| Cr Radial Dynamic [lbf] | 1402 |
| C0r Radial static [lbf] | 816 |
| Cur Radial Fatigue [lbf] | 39 |
| nB Reference speed [rpm] | 16980 |
| nG Limiting speed [rpm] | 17981 |
| Operating temperature - T(min) [°C] | -30 |
| Operating temperature - T(max) [°C] | 120 |
| d φ Inside [inch] | 0.787 |
| D Φ Outside [inch] | 1.457 |
| B Width [inch] | 0.354 |
| D2 [inch] | 1.307 |
| r(min.) [inch] | 0.012 |
| d1 [inch] | 0.992 |
| Mounting dimensions | |
| da(min.) [inch] | 0.866 |
| Da(max.) [inch] | 1.378 |
| ra(max.) [inch] | 0.012 |
The 61904-2Z-C3 Single-row deep groove ball bearings mainly consist of an inner ring, outer ring, steel balls, and a cage. The raceways are deep grooves, with the steel balls making four-point contact with the raceways. The inner and outer rings can be separable or integrated. They are available in various forms, including open, with dust covers, and with seals.
Single-row deep groove ball bearings have a simple structure and are the most widely used. They can simultaneously withstand radial loads and bidirectional axial loads, making them suitable for high-speed operation. They have a low coefficient of friction, low noise, and are easy to install and maintain. Versions with seals or dust covers effectively prevent contaminant intrusion and are suitable for various operating conditions.
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