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    122 Products

    Rounded Machine Keys

    Image of Product. Front orientation. Machine Keys. Rounded Machine Keys.
    When installed, these keys fill oval keyways completely, reducing stress on the key and shaft. Using them in a closed keyway keeps them from sliding along the shaft axis. The rounded ends make it easy to slide gears, hubs, and other components into place. These are also known as feather keys. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel and 1045 Carbon Steel—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    316 Stainless Steel—316 stainless steel keys have excellent corrosion resistance, but aren't as strong as steel keys. They may be mildly magnetic.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized keys fit tightly in a keyway. Press them into place for use in high-torque applications or to replace a key in a worn keyway.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping. Undersized metric keys meet DIN 6885 dimensional standards.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    7 mm × 8 mm
    20Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A14400000
    22Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A1780000
    25Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A2030000
    28Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A2730000
    30Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A3250000
    32Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A3310000
    36Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A3730000
    40Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A4360000
    45Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A4950000
    48Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A37700000
    50Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A5300000
    56Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A38300000
    60Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A38500000
    63Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A39400000
    65Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A40600000
    70Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A41600000
    75Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A45100000
    90Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885596717A45500000
     
    1045 Carbon Steel
     
    7 mm × 8 mm
    25Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—596717A19100000
    30Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—596717A32600000
    40Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—596717A48400000
     
    316 Stainless Steel
     
    7 mm × 8 mm
    12Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688552977N10700000
    14Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688552977N10800000
    15Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1090000
    16Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1110000
    18Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1120000
    20Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1130000
    22Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1140000
    25Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1150000
    28Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1160000
    30Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1170000
    32Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1180000
    35Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1190000
    36Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1210000
    40Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1220000
    45Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1230000
    50Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1240000
    55Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1250000
    60Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1270000
    63Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N1280000
    70Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13100000
    80Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13200000
    85Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13300000
    90Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13400000
    100Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13500000
    130Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 688512977N13900000
     

    Machine Keys

    Image of Product. Front orientation. Machine Keys. Machine Keys.
    Straight keys, with a square or rectangular cross section, are the most common type of key. Install them in keyways to transmit torque from shafts to gears and other components. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel and 1045 Carbon Steel—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized keys fit tightly in a keyway. Press them into place for use in high-torque applications or to replace a key in a worn keyway.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    7 mm × 8 mm
    20Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A76200000
    22Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7630000
    25Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7640000
    28Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7650000
    30Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7660000
    32Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7670000
    36Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7680000
    40Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7690000
    45Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7710000
    48Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7720000
    50Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7730000
    60Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7750000
    63Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7760000
    65Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7770000
    70Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7780000
    75Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A7790000
    90Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A78100000
     
    1045 Carbon Steel
     
    7 mm × 8 mm
    25Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—598870A3490000
    30Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—598870A3520000
    40Oversized0.000 to 0.0760.000 to 0.076Rockwell B87—598870A3530000
     
    316 Stainless Steel
     
    7 mm × 8 mm
    18Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A49800000
    20Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A49900000
    25Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885598870A50900000
    28Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5100000
    30Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5110000
    35Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5230000
    36Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5260000
    40Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5300000
    65Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5560000
    80Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5640000
    90Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A5660000
    100Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A57100000
    125Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A58400000
    150Undersized-0.090 to 0.000-0.036 to 0.000Not RatedDIN 6885198870A59800000
     

    Machine Key Stock

    Cut this square or rectangular key stock to length to create a straight machine key. Straight keys are the most common type of key. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    1008-1045 carbon steel key stock is an economical choice with good strength.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    5 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A508000000
    5 mm × 8 mmUndersized-0.030 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A5200000
    7 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A50900000
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A7400000
    8 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B87—92288A5110000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A7550000
     
    1,000 mm Long
    5 mm × 8 mmUndersized-0.030 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A55500000
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A56900000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A57000000
     
    Zinc-Plated 1008-1045 Carbon Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    Zinc-plated 1008-1045 carbon steel key stock is an economical choice with good strength and resists corrosion in wet environments.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Each
    305 mm Long
    5 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B8792288A12500000
    7 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B8792288A1600000
    8 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B8792288A2300000
     
    Zinc-Yellow-Chromate-Plated 1045 Carbon Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    Zinc-yellow-chromate-plated 1045 carbon steel key stock is an economical choice with good strength and resists corrosion in wet environments.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    5 mm × 8 mmUndersized-0.070 to 0.000-0.040 to 0.000Rockwell B87DIN 688092288A780000000
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A78400000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B87DIN 688092288A7900000
     
    4140 Alloy Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    4140 alloy steel key stock is an economical choice with good strength. 4140 alloy steel key stock has greater strength and toughness after hardening than carbon steel, making it useful for high-stress applications.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B90DIN 688092288A66000000
     
    1,000 mm Long
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B90DIN 688092288A67100000
     
    18-8 Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    18-8 stainless steel key stock offers a balance of strength and corrosion resistance. It may be mildly magnetic. 18-8 stainless steel key stock is more corrosion resistant than steel key stock.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    7 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B82DIN 17498810A140000000
    8 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Rockwell B82DIN 17898810A15000000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Not RatedDIN 688090457A46000000
     
    304 Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    304 stainless steel key stock offers a good balance of strength, corrosion resistance, and machinability. 304 stainless steel key stock is more corrosion resistant than steel key stock.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B80DIN 688092288A604000000
     
    1,000 mm Long
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B80DIN 688092288A61000000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B80DIN 688092288A61800000
     
    316 Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    316 stainless steel key stock has the best corrosion resistance of our stainless steel key stock and may be mildly magnetic. 316 stainless steel key stock is more corrosion resistant than steel key stock.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    1,000 mm Long
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B85DIN 688092288A642000000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B85DIN 688092288A64300000
     
    316/316L Stainless Steel
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    316/316L stainless steel key stock has the best corrosion resistance of our stainless steel key stock and may be mildly magnetic. 316/316L stainless steel key stock is more corrosion resistant than steel key stock.
    Oversized Tolerance—Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. Press it into place for use in high-torque applications or to replace a key in a worn keyway.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    7 mm × 8 mmOversized0.000 to 0.0760.000 to 0.076Not Rated—92288A183000000
    7 mm × 8 mmUndersized-0.090 to 0.000-0.036 to 0.000Rockwell B86DIN 688090457A15500000
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B86DIN 688090457A16000000
     
    360 Brass
    Image of Product. Front orientation. Machine Key Stock. Machine Key Stock.
    360 brass key stock is corrosion resistant and nonmagnetic. 360 brass is softer than other metals, so it's often used for shear keys.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.
    DIN 6880—Key stock that meets DIN 6880 conforms to DIN standards for undersized keys.
    Tolerance,
    mm
    Ht. × Wd.
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Each
    305 mm Long
    8 mm × 8 mmUndersized-0.036 to 0.000-0.036 to 0.000Rockwell B35DIN 688090457A760000000
     

    Tapped Rounded Machine Keys

    Image of Product. Front orientation. Machine Keys. Tapped Rounded Machine Keys.
    Thread a screw through the tapped hole to pop these keys out of a keyway. When installed, they fill oval keyways completely, reducing stress on the key and shaft. Using them in a closed keyway keeps them from sliding along the shaft axis. The rounded ends make it easy to slide gears, hubs, and other components into place. To install, press them in to place. Use them for permanent or high-torque applications, or to replace a key in a worn keyway. Keys are made of steel.
    Undersized Tolerance—Undersized keys are good when you need a slightly looser fit or when you have an inconsistent keyway. Use them with parts you take apart frequently, such as for maintenance or prototyping. They meet DIN 6885 dimensional standards for undersized keys.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Thread
    Size
    Specs.
    Met
    Each
    1018-1045 Carbon Steel
     
    7 mm × 8 mm
    20Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A12400000
    28Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1270000
    30Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1280000
    32Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1290000
    36Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1310000
    40Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1320000
    45Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1330000
    50Undersized-0.090 to 0.000-0.036 to 0.000Not RatedM3 × 0.5 mmDIN 688590164A1350000
     

    Woodruff Keys

    Image of Product. Front orientation. Contains Annotated. Machine Keys. Woodruff Keys.
    Image of Attribute. Side View. Front orientation. Contains Annotated. Woodruff Keys.

    Side View

    Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. They are also often used on tapered shafts. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Because they're usually shorter than standard machine keys, they work best in light duty applications. Use them to connect gears and other components to shafts. Also known as half moon keys.
    1018-1045 Carbon Steel—Steel keys offer good strength.
    Metric—Metric keys conform to DIN 6888 standards.
    Wd.,
    mm
    For Keyway
    Dia., mm
    Ht.,
    mm
    Lg.,
    mm
    Wd. Tolerance,
    mm
    Specs.
    Met
    System of
    Measurement
    Pkg.
    Qty.
    Pkg.
    1018-1045 Carbon Steel
    822921.6-0.036 to 0.000DIN 6888Metric1098490A290000000
    8281127.35-0.036 to 0.000DIN 6888Metric1098490A30000000
    8321331.4-0.036 to 0.000DIN 6888Metric1098490A31000000
     

    Tapered Gib Keys

    Image of Attribute. Front orientation. Contains Annotated. Tapered Gib Keys.
    These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. The gib head makes these keys easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Keys are tapered along their length. Use them to connect gears and other components with tapered keyways to shafts. Keys are made of steel.
    Metric—The height of metric keys decreases by 1 mm for every 100 mm of length. They meet DIN 6887, an international standard for machine keys.
    Tolerance,
    mm
    Head,
    mm
    Lg.,
    mm
    Ht.
    Wd.
    Ht.
    Lg.
    End Ht.,
    mm
    Rate of
    Taper
    Specs.
    Met
    System of
    Measurement
    Each
    1018-1045 Carbon Steel
     
    7 mm × 8 mm
    400.000 to 0.200-0.036 to 0.0001186.6701:100DIN 6887Metric98471A20200000
    500.000 to 0.200-0.036 to 0.0001186.5701:100DIN 6887Metric98471A2040000
     
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