718/5AC Ball Bearing
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Request Quote| Part Number | 718/5AC |
| Category | Miniature Angular Contact Ball Bearings |
| Brand | JMP® |
| Interchangeable With | INA, NTN, HRB |
| Bore Diameter | 5.0000 mm |
| Outer Diameter | 11.0000 mm |
| Width | 3.0000 mm |
| Chamfer Dimension | 0.30 mm |
| Dynamic Radial Load | 1 lbf |
| Static Radial Load | 0 lbf |
| Seal Type | Open |
| Contact Angle | 25.00 |
| Load Direction | Angular Contact |
| System of Measurement | Metric |
| Preload | Available |
| Ball / Roller Material | Steel,Ceramic |
| Cage Material | Nylon,Phenolic |
| Limiting Speed (Grease) | — |
| Limiting Speed (Oil) | — |
| ABEC Class | P5(ABEC-5),P4(ABEC-1 |
| Lubrication | Lubricated |
| Brand | Equivalent |
|---|---|
| INA | 718/5AC |
| NTN | 718/5AC |
| HRB | 718/5AC |
The 718/5AC is a high-quality Ball Bearing with bore diameter of 5.0000 mm, outer diameter of 11.0000 mm, and width of 3.0000 mm.
With a dynamic radial load rating of 1 lbf and static load rating of 0 lbf, the 718/5AC is engineered to handle demanding operating conditions.
- Reliable load capacity for general industrial applications
- Optimized operating speed for stable performance
- Open design for easy relubrication and low friction operation
- Precision manufacturing to ISO standards ensures consistent quality
- Fully interchangeable with major international brands (SKF, NSK, FAG, NTN)
The 718/5AC is available in Open (no seal), ZZ (metal shield), and 2RS (rubber seal) configurations. Open bearings offer higher speed ratings and lower friction, while sealed versions provide better contamination protection and reduced maintenance requirements.
JMP Bearings manufactures the 718/5AC in various tolerance classes including ABEC-1 (standard), ABEC-3, ABEC-5 (precision), and ABEC-7 (high precision). Please contact us for specific tolerance class availability and pricing.
The 718/5AC typically uses lithium-based grease (e.g., ISO VG 68) for general applications. For high-temperature or high-speed applications, synthetic greases such as polyurea-based lubricants are recommended. Contact our engineering team for application-specific lubrication guidance.
JMP Bearings offers flexible ordering - sample quantities are available from 1 piece. For bulk orders, we provide tiered pricing starting at 100, 500, and 1000+ pieces. Contact us for a custom quote tailored to your volume.
For standard 718/5AC applications, shaft tolerance is typically k5 or j6, and housing tolerance is typically H7 or J6. Exact tolerance selections depend on load conditions, speed, and operating temperature. Refer to ISO 286 or consult our engineering support for detailed recommendations.
