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    78 Products

    GT Timing Belt Idler Pulleys

    Image of Product. Front orientation. Timing Belt Idler Pulleys. GT Timing Belt Idler Pulleys, Toothed.

    Toothed

    Image of Product. Front orientation. Timing Belt Idler Pulleys. GT Timing Belt Idler Pulleys, Without Teeth.

    Without Teeth

    Image of Attribute. Front orientation. Contains Annotated, Border. GT Timing Belt Idler Pulleys.
    Get pitch-perfect compatibility with these free-spinning pulleys. They mesh with belts that have curved GT-profile teeth, reducing vibration and wear. As they rotate on their bearings, these pulleys press up against belts to reduce slack and keep the system moving smoothly. All are compatible with GatesPowerGrip GT, 2GT, GT2, GT3, and GT4 series. Idler pulleys are often used with belt tensioners.
    Corrosion-Resistant Aluminum—Lightweight and resist rust in wet environments. Although aluminum pulleys are one-third the weight of iron pulleys, they aren't as strong.
    Without Teeth—These pulleys press against the smooth side of the belt instead of the toothed side to maintain tension.
    Toothed
    Without Teeth
    For Max.
    Belt Wd., mm
    Pitch,
    mm
    For Shaft
    Dia., mm
    OD,
    mm
    Bearing
    Type
    No. of
    Teeth
    Each
    Each
    For 2MGT Trade Size
     
    Corrosion-Resistant Aluminum
    62315Ball
    203693N211000003693N21400000
    62515Ball
    203693N1100003693N140000
    92315Ball
    203693N21200003693N2150000
    92515Ball
    203693N1200003693N150000
    122315Ball
    203693N21300003693N2160000
    122515Ball
    203693N1300003693N160000
     

    High-Torque HTD Timing Belt Pulleys for Hex Shafts

    Image of Product. Front orientation. Contains Annotated. Timing Belt Drive Pulleys. High-Torque HTD Timing Belt Pulleys for Hex Shafts.
    Image of Attribute. Front orientation. Contains Annotated, Border. Curved (HTD) Teeth.
    No need for set screws—these pulleys have bores with six walls that engage with the shaft to transfer torque. They're a good choice when your setup needs to come apart frequently since there aren't extra mounting steps such as press fitting or installing bushings. These pulleys have curved HTD teeth that interlock with the matching belt better than trapezoidal teeth, so they transmit about twice the torque. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series.
    Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.
    For Max.
    Belt Wd., mm
    Pitch,
    mm
    No. of
    Teeth
    Bore
    Type
    Hex
    Wd.
    Pitch Dia.,
    mm
    No. of
    Flanges
    Hub
    Type
    Each
    For H5M Trade Size
     
    Corrosion-Resistant Aluminum
    9518Finished1/2"28.72Standard5454N11000000
    9524Finished1/2"38.22Standard5454N1200000
    9530Finished1/2"47.82Standard5454N1300000
    9536Finished1/2"57.32Standard5454N1400000
    15515Finished1/2"23.92Standard5454N1500000
    15518Finished1/2"28.72Standard5454N1600000
    15524Finished1/2"38.22Standard5454N1700000
    15530Finished1/2"47.82Standard5454N1800000
    15536Finished1/2"57.32Standard5454N1900000
     

    Flat Belt Idler Pulleys

    Image of Product. Front orientation. Flat Belt Idler Pulleys. Nylon.

    Nylon

    Image of Product. Front orientation. Flat Belt Idler Pulleys. Cast Iron.

    Cast Iron

    Image of Product. Front orientation. Flat Belt Idler Pulleys. Steel.

    Steel

    Image of Attribute. Front orientation. Contains Annotated.
    These pulleys spin freely on built-in bearings to maintain tension for reduced wear and vibration. They’re often used with belt tensioners (sold separately).
    Ball Bearing—Pulleys with ball bearings ensure proper positioning inside a tube or housing. They’re sealed to block out dust and contaminants better than pulleys with needle roller bearings.
    Needle Roller Bearing—Pulleys with needle roller bearings minimize internal friction.
    Nylon—Nylon pulleys are lightweight and corrosion resistant.
    Cast Iron and Steel—Cast iron and steel pulleys are more durable than nylon pulleys.
    For Belt
    Wd.
    OD
    For Shaft
    Dia.
    Dia.
    Wd.
    Groove
    Dp.
    Material
    Each
    Ball Bearing
    5/8"3.5"3/8"3"1 3/32"0.25"Nylon
    6235K64000000
    5/8"3.5"1/2"3"1 3/32"0.25"Nylon
    6235K7400000
    11/16"2.5"0.635"2 1/4"7/8"0.125"Cast Iron1355K1300000
    13/16"2.8"3/8"2 33/64"1 7/32"0.11"Nylon
    6235K6800000
    13/16"2.8"1/2"2 33/64"1 7/32"0.11"Nylon
    6235K7800000
    13/16"3.5"3/8"3"1 7/32"0.25"Nylon
    6235K6500000
    13/16"3.5"1/2"3"1 7/32"0.25"Nylon
    6235K7500000
    7/8"2.4"3/8"2"1 5/32"0.18"Nylon
    6235K6100000
    7/8"2.4"1/2"2"1 5/32"0.18"Nylon
    6235K7100000
    7/8"3"3/8"2 1/2"1 5/16"0.25"Nylon
    6235K6300000
    7/8"3"1/2"2 1/2"1 5/16"0.25"Nylon
    6235K7300000
    7/8"5.6"3/8"5 1/32"1 19/64"0.26"Nylon
    6235K6700000
    7/8"5.6"1/2"5 1/32"1 19/64"0.26"Nylon
    6235K7700000
    29/32"4.5"3/8"4"1 25/64"0.25"Nylon
    6235K6600000
    29/32"4.5"1/2"4"1 25/64"0.25"Nylon
    6235K7600000
    1 1/16"4.5"0.635"4"1 7/16"0.25"Cast Iron1355K14000000
    1 1/8"2.1"3/8"1 7/8"1 35/64"0.09"Nylon
    6235K6200000
    1 1/8"2.1"1/2"1 7/8"1 35/64"0.09"Nylon
    6235K7200000
    1 1/8"3.4"3/8"2 31/32"1 43/64"0.2"Nylon
    6235K6900000
    1 1/8"3.4"1/2"2 31/32"1 43/64"0.2"Nylon
    6235K7900000
    2 1/16"4.5"0.635"4"2 7/16"0.25"Cast Iron1355K15000000
    3 1/16"4.5"0.635"4"3 7/16"0.25"Cast Iron1355K16000000
    4 1/2"7"1"6"5"0.5"Cast Iron1355K17000000
    6 1/4"7"1"6"6 3/4"0.5"Cast Iron1355K18000000
     
    Needle Roller Bearing
    7/16"1.4"1/2"1 1/8"5/8"0.125"Steel1355K100000
    9/16"1.8"1/2"1 3/8"13/16"0.187"Steel1355K200000
    11/16"2.5"1"2 1/4"7/8"0.125"Steel1355K300000
    1 1/16"4.5"1"4"1 7/16"0.25"Cast Iron1355K4000000
    2 1/16"4.5"1"4"2 7/16"0.25"Cast Iron1355K5000000
    3 1/16"4.5"1"4"3 7/16"0.25"Cast Iron1355K6000000
    4 1/2"7"1 1/2"6"5"0.5"Cast Iron1355K11000000
     

    V-Belt Idler Pulleys

    Image of Product. Front orientation. V-Belt Idler Pulleys. 1 Groove.
    Image of Product. Front orientation. V-Belt Idler Pulleys. 2 Grooves.
    Image of Product. Front orientation. V-Belt Idler Pulleys. 3 Grooves.
    Image of Attribute. Front orientation. Contains Annotated.

    1 Groove

    2 Grooves

    3 Grooves

    These idler pulleys spin freely on built-in ball bearings to maintain tension for reduced wear and vibration. Commonly used with belt tensioners (sold separately), they are lightweight and corrosion and abrasion resistant. Bearings are double sealed to keep dirt out.
    No. of
    Grooves
    OD
    For Shaft
    Dia.
    Pitch
    Dia.
    Wd.
    Groove
    Dp.
    Material
    Body
    Type
    Each
    For 4L, A, AX Belts
    13"3/8"2"45/64"0.5"Nylon
    Solid6234K43000000
    13"1/2"2"45/64"0.5"Nylon
    Solid6234K5300000
    14"3/8"2.99"45/64"0.5"Nylon
    Solid6234K4500000
    14"1/2"2.99"45/64"0.5"Nylon
    Solid6234K5500000
    16"1/2"5.12"23/32"0.46"Nylon
    Solid6234K6100000
    17.5"1/2"6.6"23/32"0.45"Nylon
    Solid6234K6200000
     
    For 5L, B, BX Belts
    13.1"3/8"1.84"25/32"0.63"Nylon
    Solid6234K4400000
    13.1"1/2"1.84"25/32"0.63"Nylon
    Solid6234K5400000
    14"3/8"2.84"55/64"0.58"Nylon
    Solid6234K4600000
    14"1/2"2.84"55/64"0.58"Nylon
    Solid6234K5600000
    15"3/8"3.84"51/64"0.6"Nylon
    Solid6234K4700000
    15"1/2"3.84"51/64"0.6"Nylon
    Solid6234K5700000
    26.3"1/2"5.18"1 23/32"0.55"Nylon
    Solid7637N111000000
    36.3"1/2"5.18"2 7/16"0.55"Nylon
    Solid7637N121000000
     

    Round Belt Idler Pulleys

    Image of Product. Front orientation. Round Belt Idler Pulleys. Round Belt Idler Pulleys, Nylon.

    Nylon

    Image of Attribute. Front orientation. Contains Annotated. Round Belt Idler Pulleys.
    These pulleys spin freely on built-in bearings to maintain tension for reduced wear and vibration. They are often used with belt tensioners (sold separately). Ball bearings are double sealed to keep dirt out.
    Nylon—Nylon pulleys are lightweight and corrosion and abrasion resistant.
    For Belt
    Dia.
    OD
    For Shaft
    Dia.
    Dia.
    Wd.
    Groove
    Dp.
    Material
    Bearing
    Material
    Each
    1/4"4.5"3/8"3.74"55/64"0.36"Nylon
    Steel59475K53000000
    1/4"4.5"1/2"3.74"55/64"0.36"Nylon
    Steel59475K6300000
    1/4"6"3/8"5.2"51/64"0.4"Nylon
    Steel59475K5600000
    1/4"6"1/2"5.2"51/64"0.4"Nylon
    Steel59475K6600000
    3/8"3.1"3/8"2.45"39/64"0.3"Nylon
    Steel59475K5100000
    3/8"3.1"1/2"2.45"39/64"0.3"Nylon
    Steel59475K6100000
    3/8"3.5"3/8"2.75"49/64"3/8"Nylon
    Steel59475K5200000
    3/8"3.5"1/2"2.75"49/64"3/8"Nylon
    Steel59475K6200000
    3/8"5.5"3/8"4.62"9/16"0.44"Nylon
    Steel59475K5500000
    3/8"5.5"1/2"4.62"9/16"0.44"Nylon
    Steel59475K6500000
    11/16"4.8"3/8"4"1 1/16"0.41"Nylon
    Steel59475K5400000
    11/16"4.8"1/2"4"1 1/16"0.41"Nylon
    Steel59475K6400000
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