DDRI-4ZZEE
| Part Number | DDRI-4ZZEE |
Brand: LILY  | |
Equivalent: NMB |
| System of Measurement | Inch |
| DDRI-4ZZEERA1P25L01 | |
| Bearing Type | Ball |
| For Load Direction | Radial |
| Construction | Single Row |
| Inner Ring Type | Extended |
| Seal Type | Shielded |
| Bore Dia | 0.07813" |
| Bore Dia Tolerance | -0.0003" to 0" |
| Outer Dia | 0.25" |
| Outer Dia Tolerance | -0.0003" to 0" |
| Width | 0.1406" |
| Width Tolerance | -0.005" to 0" |
| Inner Ring Outer Dia | 0.122" |
| Inner Ring Width | 0.1719" |
| Ring Material | 440C Stainless Steel |
| Ball Material | 440C Stainless Steel |
| Cage Material | 300 Series Stainless Steel |
| Shield Material | 300 Series Stainless Steel |
| Dynamic Radial Load | 49 lbf |
| Static Radial Load | 15 lbf |
| Max Speed (X1000 rpm) | 60.3 |
| Lubrication | Required |
| Temperature Range | -86 to 230 °F |
| Shaft Mount Type | Press Fit |
| ABEC Rating | ABEC1 (Available in ABEC3/5/7) |
| Radial Clearance Trade No | MC3 （Available in MC1/2/4/5/6) |
| Radial Clearance | 0.00008" to 0.0005" |
| ROHS | Compliant |
| REACH | Compliant |
| Ball Dia | 0.0394" |
| Ball Qty | 7 |
| Weight | 0.53 g |
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DDRI-4ZZEE NMB Ball Bearings with Extended Inner Ring have deep groove geometry for high speeds and supporting both radial and axial loads. These DDRI-4ZZEE NMB Ball Bearings with Extended Inner Ring are for use in applications that involve combined radial and axial loads and a need for high running accuracy at high rotational speeds. For instance, DDRI-4ZZEE is often used in motors, ATMs as well as Card Readers. In Food & Beverage Industry, DDRI-4ZZEE is also popular. More applications about DDRI-4ZZEE are as follows.
Typical applications include:
Motors，Flow Meters，Medical Instruments，Vacuum Pumps，Robotics Industry，Crossbow，Food & Beverage Industry，Automation & Industry，Anemometer，ATMs & Card Readers，Galvanometers，Gas Meters，Industrial Encoders，Industrial Meters，Optical Encoders，Plastic Card Printers，Surveillance Systems，Fuel controls，Gyros, synchros and servos，Cryogenic coolers，Pulmonary assist devices，Clocks，Instrumentation，Drones and model，Fishing reel
General Selection Factors
Several factors must be considered for choosing NMB ball bearings. These factors include the ring material, design, shields and seals, cage, Annual Bearing Engineering Committee (ABEC) grade, radial play, and lubricant. NMB bearings are available in open, sealed and shielded configurations. Seals and shields are used in NMB bearings (specifically ball bearings) to retain lubricants and prevent particulate contamination from reaching critical surfaces. Seals are used where minimal light contact is offered. Seals for NMB bearings provide deterrence to particulate contamination, but increase torque and limit operating speeds. Shields are used in most applications.
