Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | HC61806 | |
| Bore diameter | d | 30 mm |
| Outside diameter | D | 42 mm |
| Width | B | 7 mm |
| Basic dynamic load rating | C | 5.2 kN |
| Basic static load rating | C0 | 3.95 kN |
| Fatigue load limit | Pu | 0.156 kN |
| Limiting speed | nG | 8000 r/min |
| Mass | ≈m | 0.026 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Internal clearance | CN (Group N) — Normal internal clearance | |
| Sealing | 2RSR — Contact seal on both sides | |
| Cage | JN — Steel sheet metal | |
| Lubricant | Lubricating grease | |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 100 °C |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 1Derived from ISO Normal; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Product characteristics9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Version code | >N | Not marked on bearing |
| Material Bearing | HC | Hybrid bearing, rolling elements ceramic, bearing rings made of steel |
| Type of Seal | 2RSR | Contact seal on both sides |
| Cage | JN | Steel sheet metal |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Dimensional / heat stabilization | SN | Rings dimensional stabilized up to 120° |
| Lubricant | Lubricating grease | |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
| Bore type | Z | Cylindrical |
Main Dimensions & Performance Data8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 30 mm1.181 in |
| Outside diameter | D | 42 mm1.654 in |
| Width | B | 7 mm0.276 in |
| Basic dynamic load rating, radial | Cr | 5,200 N1,169.065 lbf |
| Basic static load rating, radial | C0r | 3,950 N888.04 lbf |
| Fatigue load limit, radial | Cur | 156 N35.072 lbf |
| Limiting speed | nG | 8,000 1/min |
| Mass | ≈m | 0.026 kg0.057 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 32 mm1.26 in |
| Maximum diameter of housing shoulder | Da max | 40 mm1.575 in |
| Maximum fillet radius | ra max | 0.3 mm0.012 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 0.3 mm0.012 in |
| Shoulder diameter outer ring | D1 | 38.4 mm1.512 in |
| Caliber diameter outer ring | D2 | 39.6 mm1.559 in |
| Shoulder diameter inner ring | d1 | 33.6 mm1.323 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -20 °C-4 °F |
| Operating temperature max. | Tmax | 100 °C212 °F |
Calculation factors1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Calculation factor | f0 | 17.9 |
Capabilities & suitability7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Axial load capacity in both directions | Yes | |
| Lifetimelubricationfreedomfrommaintenance | Yes | |
| Suitable for grease lubrication | Yes | |
| Sealedonbothsides | Yes | |
| Currentinsulated | Yes |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2890072 | |
| Brand | FAG | |
| Base Type | HC61806 | |
| SAP material number | 3035394880000 | |
| Base product | 2305080101 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Deep groove ball bearing HC618..-2RSR, Hybrid bearing, single row, seals, steel sheet metal cage | |
| Short Description | Deep groove ball bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 30 mm | |
| Outside Diameter (D) | 42 mm | |
| Width (B) | 7 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 5,200 N | |
| Basic Static Load Rating, Radial (C0R) | 3,950 N | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Limiting Speed (Ng) | 8,000 1/min | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Calculation Factor (F0) | 17.9 | |
| Fatigue Load Limit, Radial (Cur) | 156 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 32 mm | |
| Shoulder Diameter Inner Ring (D1) | 33.6 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 40 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Maximum Fillet Radius (Ra Max) | 0.3 mm | |
| Shoulder Diameter Outer Ring (D1) | 38.4 mm | |
| Caliber Diameter Outer Ring (D1) | 39.6 mm |
