McMaster-Carr logo
    Filter by
    Finish
    System of Measurement
    End Type
    Edge Type
    For Motion
    Hardness Rating
    Hardness
    Surface Smoothness
    Temper Designation
    Industrial Info Compare
    Finish Thickness
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Tolerance Rating
    Construction
    Mounting Hole Center-to-Center Width
    Attribute Image
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Center Height
    Attribute Image
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    65 Products

    Linear Shafts

    Image of Product. Front orientation. Linear Shafts.
    Pair with linear bearings and shaft supports to create smooth, precise motion. These linear shafts are turned, ground, and polished to tight tolerances and hardened to resist wear.
    Lightweight Ceramic-Coated Aluminum—Lightweight and corrosion resistant with an ultra-hard, slippery ceramic coating for wear resistance. Even contaminants such as weld spatter, molten glass, and paint won't stick to these shafts. While the coating is hard, they have a soft core, so they should be used with linear sleeve bearings to avoid denting the shaft.
    Surface Smoothness—The lower the microinch value, the smoother the finish and the less friction it will cause on the bearing.
    Lg.
    Dia. Tolerance
    Hardness
    Hardness
    Rating
    Surface Smoothness,
    μin
    Each
    Lightweight Ceramic-Coated Aluminum
     
    1/4" Diameter
    6"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K61000000
    9"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6200000
    12"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6300000
    15"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6400000
    18"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6500000
    24"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6600000
    36"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6700000
    48"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K6800000
     
    3/8" Diameter
    6"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7100000
    9"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7200000
    12"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7300000
    15"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7400000
    18"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7500000
    24"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7600000
    36"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7700000
    48"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K7800000
     
    1/2" Diameter
    6"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1100000
    9"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1200000
    12"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1300000
    15"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1400000
    18"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1500000
    24"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1600000
    36"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1700000
    48"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K1800000
     
    3/4" Diameter
    6"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2100000
    9"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2200000
    12"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2300000
    15"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2400000
    18"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2500000
    24"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K2600000
    36"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K27000000
    48"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K28000000
     
    1" Diameter
    6"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3100000
    9"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3200000
    12"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3300000
    15"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3400000
    18"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3500000
    24"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K3600000
    36"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K37000000
    48"-0.0012" to -0.0004"Rockwell C70Ultra Hard121031K38000000
     
    1 1/2" Diameter
    6"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K4100000
    9"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K4200000
    12"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K4300000
    15"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K4400000
    18"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K4500000
    24"-0.0013" to -0.0005"Rockwell C70Ultra Hard121031K46000000
     
    2" Diameter
    6"-0.0015" to -0.0005"Rockwell C70Ultra Hard121031K5100000
    12"-0.0015" to -0.0005"Rockwell C70Ultra Hard121031K53000000
    15"-0.0015" to -0.0005"Rockwell C70Ultra Hard121031K54000000
    24"-0.0015" to -0.0005"Rockwell C70Ultra Hard121031K56000000
     

    Support-Rail Shafts

    Image of Product. Front orientation. Linear Shafts. Support-Rail Shafts.
    Attached support rails prevent bending or bearing misalignment under moderate to heavy loads. Pair with linear bearings to create smooth, precise motion. These linear shafts are turned, ground, and polished to tight tolerances and hardened to resist wear.
    Lightweight Ceramic-Coated Aluminum—Lightweight and corrosion resistant with an ultra-hard, slippery ceramic coating for wear resistance. Even contaminants such as weld spatter, molten glass, and paint won't stick to these shafts. While the coating is hard, they have a soft core, so they should be used with linear sleeve bearings to avoid denting the shaft.
    Surface Smoothness—The lower the microinch value, the smoother the finish and the less friction it will cause on the bearing.
    Lg.
    Dia. Tolerance
    Ctr.
    Ht.
    Overall
    Wd.
    Mounting
    Hole Dia.
    Hardness
    Hardness
    Rating
    Surface Smoothness,
    μin
    Support Rail
    Material
    Each
    Lightweight Ceramic-Coated Aluminum
     
    1/2" Diameter
    6"-0.0012" to -0.0004"1 1/8"1 1/2"5/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K11000000
    9"-0.0012" to -0.0004"1 1/8"1 1/2"5/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K1200000
    12"-0.0012" to -0.0004"1 1/8"1 1/2"5/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K1300000
    18"-0.0012" to -0.0004"1 1/8"1 1/2"5/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K14000000
    24"-0.0012" to -0.0004"1 1/8"1 1/2"5/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K15000000
     
    3/4" Diameter
    6"-0.0012" to -0.0004"1 1/2"1 3/4"7/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K2100000
    9"-0.0012" to -0.0004"1 1/2"1 3/4"7/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K2200000
    12"-0.0012" to -0.0004"1 1/2"1 3/4"7/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K23000000
    18"-0.0012" to -0.0004"1 1/2"1 3/4"7/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K24000000
    24"-0.0012" to -0.0004"1 1/2"1 3/4"7/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K25000000
     
    1" Diameter
    6"-0.0012" to -0.0004"1 3/4"2 1/8"9/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K3100000
    9"-0.0012" to -0.0004"1 3/4"2 1/8"9/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K3200000
    12"-0.0012" to -0.0004"1 3/4"2 1/8"9/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K33000000
    18"-0.0012" to -0.0004"1 3/4"2 1/8"9/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K34000000
    24"-0.0012" to -0.0004"1 3/4"2 1/8"9/32"Rockwell C70Ultra Hard126063 Aluminum
    1049K35000000
     
    back to top