Thomson 7828137 Ball Spline-Outer Race Only 2.5

Description:

The Thomson 7828137 Ball Spline Outer Race is used in precision linear motion systems to provide smooth linear travel while transmitting high torsional loads through a compatible 2.500-inch ball spline shaft. Commonly installed in CNC machine tools, robotic automation systems, material handling equipment, packaging machinery, and industrial positioning applications requiring simultaneous linear and rotary motion. Maintenance teams, OEM machine builders, and system integrators use this outer race assembly for replacement of worn spline bearings, machine retrofits, motion control upgrades, and restoration of precision linear motion performance.

Applications:

The Thomson 7828137 Ball Spline Outer Race is commonly used in CNC machining centers, robotic transfer systems, automated assembly equipment, semiconductor manufacturing machinery, packaging equipment, indexing systems, inspection machines, and industrial automation applications requiring high-speed linear guidance with torque transmission and exceptional positioning accuracy.

Technical Specifications:

• Manufacturer: Thomson Linear Motion
• Part Number: 7828137
• Product Type: Ball Spline Outer Race Only
• Series: Precision Ball Spline
• Configuration: Outer Race Only (No Inner Spline Shaft)
• Spline Nominal Diameter: 2.500 in
• Outside Diameter: 4.170 in
• Overall Length: 4.426 in
• Body Length (L1): 3.380 in
• Root Diameter: 2.100 in
• Number of Active Races: 6
• Ball Diameter: 0.375 in
• Keyway Size: 0.500 × 0.250 × 3.000 in
• Preload: Non-Preloaded
• Return Style: End Cap
• Material: Steel
• Dynamic Torque Capacity: 27,000 in-lb
• Static Torque Capacity: 62,250 in-lb
• Maximum Diametral Lash: 0.005 in
• Maximum Operating Temperature: 300°F (149°C)
• Weight: 7.5 lb
• Compatible Inner Race: Thomson 5706484 Ball Spline Shaft
• Application: High-speed linear motion with simultaneous torque transmission in industrial automation systems.

Common Replacements:

• Thomson 5708947
• Thomson 7828136
• Thomson 5706484