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    25 Products

    Step-Down Rotary Shafts

    A shoulder acts as a stop for gears, sprockets, and bearings as well as components with smaller bore sizes. No need to machine these rotary shafts or install a shaft collar. Turned, ground, and polished to tight tolerances, they reduce vibration, evenly distribute loads, and improve accuracy.
    Step-Down on One End
    Image of Product. Front orientation. ZoomedIn view. Contains MultipleImages. Rotary Shafts. Step-Down Rotary Shafts, Step-Down on One End.
    Image of Attribute. Front orientation. ZoomedIn view. Contains Annotated. Rotary Shafts. Step-Down Rotary Shafts, Step-Down on One End.
    Carbon Steel—Strong and easy to machine. These shafts work best in dry environments since moisture will cause steel to rust.
    Corrosion-Resistant 303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These shafts are easier to machine than other stainless steel shafts.
    Step
    Material
    Lg.
    Dia.
    Lg.
    Straightness
    Tolerance
    Dia.
    Tolerance
    Hardness
    Hardness
    Rating
    Each
    Carbon Steel
     
    3/4" Diameter
    6"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T1000000
    9"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T200000
    12"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T300000
     
    1" Diameter
    6"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T400000
    9"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T500000
    12"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T600000
     
    Corrosion-Resistant 303 Stainless Steel
     
    3/4" Diameter
    6"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2100000
    9"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2200000
    12"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2300000
     
    1" Diameter
    6"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2400000
    9"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2500000
    12"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 160Medium8641T2600000
     
    Step-Down on Both Ends
    Image of Product. Front orientation. ZoomedIn view. Contains MultipleImages. Rotary Shafts. Step-Down Rotary Shafts, Step-Down on Both Ends.
    Image of Attribute. Front orientation. ZoomedIn view. Contains Annotated. Rotary Shafts. Step-Down Rotary Shafts, Step-Down on Both Ends.
    Carbon Steel—Strong and easy to machine. These shafts work best in dry environments since moisture will cause steel to rust.
    Step
    Material
    Lg.
    Dia.
    Lg.
    Straightness
    Tolerance
    Dia.
    Tolerance
    Hardness
    Hardness
    Rating
    Each
    Carbon Steel
     
    3/4" Diameter
    12"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T51000000
    18"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5200000
    24"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T53000000
     
    1" Diameter
    12"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5700000
    12"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5400000
    18"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5800000
    18"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5500000
    24"1/2"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5900000
    24"3/4"3"0.003"/1 ft.-0.001" to 0"Brinell 150Medium8641T5600000
     

    Mounted Linear Bearings for Ball Splines

    Image of ProductInUse. Front orientation. Contains Annotated. Ball Splines and Bearings. Mounted Linear Bearings for Ball Splines.
    A flange with mounting holes makes it easy to attach a load to these bearings. Create a compact linear and rotary motion system for robots and other applications requiring complex, fast movements, by combining them with ball splines. These bearings move smoothly and precisely even at high speeds along ball splines while grooves on the ball spline transmit rotary power. Clip a retaining ring (not included) into the groove on these bearings to position them in your system.
    52100 Alloy Steel Splines
    Image of ProductInUse. Front orientation. Contains Annotated. Ball Splines and Bearings. Mounted Linear Bearings for Ball Splines, Splines.
    Image of Product. Front orientation. ZoomedIn view. Contains MultipleImages. Ball Splines and Bearings. Mounted Linear Bearings for Ball Splines, Splines, Splined End × Step-Down End.

    Splined End ×

    Step-Down End

    Image of Attribute. 4 Splines. Front orientation. Contains Annotated. Mounted Linear Bearings for Ball Splines.

    4 Splines

    Image of Attribute. Front orientation. ZoomedIn view. Contains Annotated. Mounted Linear Bearings for Ball Splines.
    Splines are alloy steel for high strength and wear resistance. They're hardened only on the outside, so they stand up to repeated motion while keeping their center soft enough to absorb stress from shifting loads.
    Step-Down End—Splines with a step-down end have a shoulder near the end to stop gears, sprockets, and bearings.
    Spline
    Step,
    mm
    Dia.,
    mm
    Lg.,
    mm
    No.
    of
    Lg.,
    mm
    Root Dia.,
    mm
    Dia.
    Lg.
    Each
    Splined End × Step-Down End
    18.2200435016.41515061145K860000000
    23200435020.62015061145K87000000
    28300445024.82515061145K88000000
    37.4400455033.13015061145K89000000
     
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