Bridgeport 11170262 Ball Bearing B Series Mp Series Mills

Product Description

The BRIDGEPORT 11170262 is a replacement ball bearing designed for the variable speed top and lower housing assembly on Bridgeport milling machines. This bearing supports spindle rotation under variable speed conditions and is a direct-fit component for 1.5 to 2.0 HP B Series and MP Series mills. Proper bearing function is critical to maintaining spindle accuracy and minimizing vibration during milling operations. This part is installed by machine tool technicians and maintenance professionals performing scheduled service or spindle rebuilds on Bridgeport-style knee mills.

This ball bearing is suited for use in the variable speed head assembly of Bridgeport-style vertical knee mills rated at 1.5 to 2.0 HP. It fits within the top and lower housing assembly of the variable speed drive, which transfers motor output to the spindle. The bearing is also noted as compatible with I Series milling machines. It is a standard replacement component used in routine spindle maintenance and variable speed head overhauls in machine shops and industrial maintenance settings.

Key Features

• Direct-fit replacement for the variable speed top and lower housing assembly
• Compatible with 1.5 to 2.0 HP B Series and MP Series Bridgeport mills
• Also fits I Series milling machines
• Sold individually as a single unit per package
• OEM-style part for accurate dimensional fitment in spindle housing bores

Compatibility

Compatible with 1.5 to 2.0 HP B Series Mills, MP Series Mills, and I Series Milling Machines. Designed for the Variable Speed Top and Lower Housing Assembly on Bridgeport-style vertical knee mills.

Installation Notes

Installation should be performed by a qualified machine tool technician or millwright. Disconnect and lock out all electrical power to the machine before disassembling the variable speed head. Bearings should be pressed into their housing bores using appropriate bearing installation tools to avoid damage to the bearing races. Do not strike bearings directly with a hammer.