• Spline Keys and Bits
  • Each end shall be square with the axis of each arm within 4 deg, and edges may be sharp or chamfered at the option of the manufacturer. The chamfer shall not exceed the values listed.
  • Material (Steel Alloy). The spline keys shall be fabricated from an alloy steel having two or more of the following alloying elements: chromium, nickel, molybdenum, or vanadium, in sufficient quantity to assure that the specified minimum hardness of 48 HRC at the surface for sizes up to and including 0.372 in., and 45 HRC for sizes over 0.372 in., is met when spline keys are hardened by quenching from the austenitizing temperature and tempered.
  • For plated keys, all dimensions are before plating. Because of the high hardness of these products, it is recommended that they not be electroplated.
  • Bits are available, but lengths have not been standardized.
  • Spline keys shall be furnished as Short Arm Series or Long Arm Series.
  • Designation. To promote uniformity and understanding in communications relating to products conforming to this standard, it is recommended that Spline Keys be designated in accordance with the following data, preferably in the sequence shown:
    (a) product name
    (b) designation of the standard
    (c) nominal key size
    (d) series
    (e) protective finish, if required

    Examples:

    Spline Key, ASME B18.3, 0.111 Short Arm Series
    Spline Key, ASME B18.3, 0.372 Long Arm Series, Nickel Plated
1 - 22 of 22 | Results Per Page | View | Unit of Measure
1 
Request Information Compare Items

Item #

Description

Nominal Keys and Socket Size

Max. (M)

Max. (W)

No. of Splines

Max. (N)

Max. (B)

N/A Spline Key and Bit, with 0.0330" Major Dia. N/A 0.033 in N/A 0.0330 in N/A 0.0250 in N/A 4 N/A 0.0140 in N/A 0.312 in
N/A Spline Key and Bit, with 0.0480" Major Dia. N/A 0.048 in N/A 0.0480 in N/A 0.0370 in N/A 4 N/A 0.0190 in N/A 0.438 in
N/A Spline Key and Bit, with 0.0480" Major Dia. N/A 0.048 in N/A 0.0480 in N/A 0.0390 in N/A 6 N/A 0.0130 in N/A 0.438 in
N/A Spline Key and Bit, with 0.0600" Major Dia. N/A 0.060 in N/A 0.0600 in N/A 0.0490 in N/A 6 N/A 0.0160 in N/A 0.625 in
N/A Spline Key and Bit, with 0.0690" Major Dia. N/A 0.069 in N/A 0.0690 in N/A 0.0510 in N/A 4 N/A 0.0260 in N/A 0.656 in
N/A Spline Key and Bit, with 0.0720" Major Dia. N/A 0.072 in N/A 0.0720 in N/A 0.0620 in N/A 6 N/A 0.0190 in N/A 0.656 in
N/A Spline Key and Bit, with 0.0760" Major Dia. N/A 0.076 in N/A 0.0760 in N/A 0.0530 in N/A 4 N/A 0.0280 in N/A 0.656 in
N/A Spline Key and Bit, with 0.0960" Major Dia. N/A 0.096 in N/A 0.0960 in N/A 0.0790 in N/A 6 N/A 0.0240 in N/A 0.703 in
N/A Spline Key and Bit, with 0.1110" Major Dia. N/A 0.111 in N/A 0.1110 in N/A 0.0940 in N/A 6 N/A 0.0280 in N/A 0.750 in
N/A Spline Key and Bit, with 0.1330" Major Dia. N/A 0.133 in N/A 0.1330 in N/A 0.1140 in N/A 6 N/A 0.0340 in N/A 0.797 in
N/A Spline Key and Bit, with 0.1450" Major Dia. N/A 0.145 in N/A 0.1450 in N/A 0.1240 in N/A 6 N/A 0.0355 in N/A 0.844 in
N/A Spline Key and Bit, with 0.1680" Major Dia. N/A 0.168 in N/A 0.1680 in N/A 0.1440 in N/A 6 N/A 0.0410 in N/A 0.891 in
N/A Spline Key and Bit, with 0.1830" Major Dia. N/A 0.183 in N/A 0.1830 in N/A 0.1580 in N/A 6 N/A 0.0440 in N/A 0.938 in
N/A Spline Key and Bit, with 0.2160" Major Dia. N/A 0.216 in N/A 0.2160 in N/A 0.1840 in N/A 6 N/A 0.0550 in N/A 1.031 in
N/A Spline Key and Bit, with 0.2510" Major Dia. N/A 0.251 in N/A 0.2510 in N/A 0.2140 in N/A 6 N/A 0.0655 in N/A 1.125 in
N/A Spline Key and Bit, with 0.2910" Major Dia. N/A 0.291 in N/A 0.2910 in N/A 0.2460 in N/A 6 N/A 0.0775 in N/A 1.219 in
N/A Spline Key and Bit, with 0.3720" Major Dia. N/A 0.372 in N/A 0.3720 in N/A 0.3100 in N/A 6 N/A 0.0975 in N/A 1.344 in
N/A Spline Key and Bit, with 0.4540" Major Dia. N/A 0.454 in N/A 0.4540 in N/A 0.3770 in N/A 6 N/A 0.1185 in N/A 1.469 in
N/A Spline Key and Bit, with 0.5950" Major Dia. N/A 0.595 in N/A 0.5950 in N/A 0.5000 in N/A 6 N/A 0.1460 in N/A 1.719 in
N/A Spline Key and Bit, with 0.6200" Major Dia. N/A 0.620 in N/A 0.6200 in N/A 0.5240 in N/A 6 N/A 0.1615 in N/A 1.844 in
N/A Spline Key and Bit, with 0.6980" Major Dia. N/A 0.698 in N/A 0.6980 in N/A 0.5930 in N/A 6 N/A 0.1805 in N/A 1.844 in
N/A Spline Key and Bit, with 0.7900" Major Dia. N/A 0.790 in N/A 0.7900 in N/A 0.6740 in N/A 6 N/A 0.1975 in N/A 1.969 in
1 - 22 of 22 | Results Per Page | View | Unit of Measure
1 
Search Catalog: GO
Use trailing wildcard (*) for broader results.