USMA 30BNR10HTDUELP4Y High Precision Ball Bearings 30BNR10 Angular Contact Ball Bearing 30x55x13mm

The USMA 30BNR10HTDUELP4Y is a high-precision angular contact ball bearing designed for ultra-high-speed spindle applications, particularly in CNC machining, grinding, and other precision industrial equipment. Below are its detailed specifications:

USMA 30BNR10HTDUELP4Y Specifications

• Model: 30BNR10

• Type: Angular contact ball bearing (single row, likely 15° or 25° contact angle)

• Dimensions: 30×55×13 mm (Bore × OD × Width)

• Precision Grade: P4 (ABEC 7) or higher (P4Y indicates enhanced tolerance matching)

• Cage (Retainer): HTDU (Polyamide or phenolic resin, optimized for high speeds)

• Lubrication: EL (Extreme low-torque grease for high-speed operation)

• Sealing: Likely open type (no seal) for minimal friction (common in spindle bearings)

• Material: High-grade bearing steel (possibly hybrid ceramic balls in some variants)

• Dynamic & Static Load Ratings: (Exact values depend on contact angle, but expect high rigidity)