NMB - DDA-2115DD | Deep Grove Ball Bearing Single Row | 15 × 21 × 4 mm

Details

NMB DDA-2115DD is a deep grove ball bearing single row with inner diameter 15 mm, outer diameter 21 mm and width 4 mm. Additional specifications include bore type CYLINDRICAL, seal YES, cage YES and lubrication STANDARD.

This bearing is a premium, high-precision miniature deep groove radial ball bearing manufactured by NMB Technologies (a MinebeaMitsumi Inc. company). The internal raceway grooves are ground to a deep radius that closely matches the curvature of the 14 internal balls. This geometry allows the bearing to efficiently support radial loads while simultaneously accommodating moderate axial (thrust) loads in both directions. It features an ultra-thin width design profile intended for minimal footprint deployment inside space-constrained mechanical enclosures. Material : Constructed from high-hardness DD400 martensitic stainless steel (rings and balls) and equipped with dual-sided nitrile synthetic rubber contact seals. Features are : Maintenance-Free Lifespan, Low Noise and Vibration, Controlled Radial Internal Clearance, Broad Temperature Range, High Ball Complement Density, Lower Breakdown Torque, Ultra-Quiet Running Performance, Unified Geometric Symmetrical Runout. Applications : Automation, Robotics, & MechatronicsMedical, Laboratory, & Optical Devices, Textile & Sewing Automation, Semiconductor & Electronics Manufacturing, Renewable Energy & Smart Grid Systems, Food Processing & Packaging Equipment. DD=Double Synthetic Rubber Contact Seals.

Specifications