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E-Series

E-Series

Externally geared slew rings are widely used in many medium to heavy load applications. This includes industrial, man lift, cranes, robots and welding positioners. Standard E-series slew rings are composed of an external ring with straight gear teeth, an internal ring, and a specific number of rolling elements in between. These can be driven through meshing with an appropriate Pinion.

Non-standard E-series slew rings are composed of an external ring with helical teeth instead of straight. These can be meshed with appropriate pinions but are widely used to mesh with worm gears as components of Slew Drives.

Light Duty - Light Weight
series image
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (in) di (in) Dr (in) Di (in) do (in) dr (in) G (lbs) Lo (in) no Li (in) ni Mt (ft-lbs) Tooth Form D2 (in) Pd z2 Fz(lbs)
E.410.120.31I.1C 19.9 11.97 - 16.22 16.14 14.49 72 18 8 13.13 12 22,700 FS 19.5 4 78 5,560
E.540.120.31I.1C 25.15 17.09 - 21.34 21.26 19.61 96 23.25 12 18.13 15 37,700 FS 24.75 4 99 5,650
E.640.120.31I.1C 29.15 21.03 - 25.28 25.2 23.55 115 27.25 15 22.13 18 49,800 FS 28.75 4 115 5,700
E.740.120.31I.1C 32.9 24.97 - 29.22 29.14 27.49 128 31 18 26.13 18 54,200 FS 32.5 4 130 5,740
E.840.120.31I.1C 37.2 28.9 - 33.15 33.07 31.42 152 35 18 30 18 56,500 FS 36.667 3 110 7,580
E.940.120.31I.1C 41.2 32.84 - 37.09 37.01 35.36 172 38.88 18 34 20 65,200 FS 40.667 3 122 7,620
E.1090.120.31I.1C 46.867 38.75 - 43 42.92 41.27 189 44.63 20 39.88 24 75,500 FS 46.333 3 139 7,680
Tolerances 0 ±.040 Ref. Ref. Ref. 0.08
-0.03 0
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (mm) di (mm) Dr (mm) Di (mm) do (mm) dr (mm) G (kg) Lo (mm) no Li (mm) ni Mt (kN-m) Tooth Form D2 (mm) Pd z2 Fz(kg)
E.410.120.31M.1C 505.46 304.04 - 411.99 409.96 368.05 32.65 457.20 8.00 333.50 12.00 30,781.20 FS 495.30 4.00 78.00 24,730.88
E.540.120.31M.1C 638.81 434.09 - 542.04 540.00 498.09 43.54 590.55 12.00 460.50 15.00 51,121.20 FS 628.65 4.00 99.00 25,131.20
E.640.120.31M.1C 740.41 534.16 - 642.11 640.08 598.17 52.15 692.15 15.00 562.10 18.00 67,528.80 FS 730.25 4.00 115.00 25,353.60
E.740.120.31M.1C 835.66 634.24 - 742.19 740.16 698.25 58.05 787.40 18.00 663.70 18.00 73,495.20 FS 825.50 4.00 130.00 25,531.52
E.840.120.31M.1C 944.88 734.06 - 842.01 839.98 798.07 68.93 889.00 18.00 762.00 18.00 76,614.00 FS 931.34 3.00 110.00 33,715.84
E.940.120.31M.1C 1,046.48 834.14 - 942.09 940.05 898.14 78.00 987.55 18.00 863.60 20.00 88,411.20 FS 1,032.94 3.00 122.00 33,893.76
E.1090.120.31M.1C 1,190.42 984.25 - 1,092.20 1,090.17 1,048.26 85.71 1,133.60 20.00 1,012.95 24.00 1,02,378.00 FS 1,176.86 3.00 139.00 34,160.64
Tolerances 0 ±.040 Ref. Ref. Ref. 0.08
-0.03 0
Medium Duty
series image
    *Drawing above reflects on all Medium – Heavy Duty Slew Rings
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (in) di (in) H (in) Hi / Ho G (lbs) Lo (in) No Bo (in) Li (in) ni Bi (in) Mt (ft-lbs) Tooth Form D2 (in) Pd z2 Fz(lbs)
E.410.120.31I.1B 20.4 12.85 2.2 1.8 92 19 8 0.688 14.88 16 1/2-13 UNC 50,500 FS 13.25 4 53 6,084
E.540.120.31I.1B 25.5 17.6 2.2 1.8 117 24 12 0.688 19.63 20 1/2-13 UNC 72,700 FS 18 4 72 5,842
E.640.120.31I.1B 29.5 21.6 2.2 1.8 148 28 15 0.688 23.63 24 1/2-13 UNC 91,800 FS 22 4 88 5,719
E.740.120.31I.1B 33.4 25.6 2.2 1.8 171 32 15 0.688 27.63 28 1/2-13 UNC 111,900 FS 26 4 104 5,634
E.840.120.31I.1B 37.4 29.13 2.2 1.8 205 35.75 18 0.688 31.5 30 1/2-13 UNC 128,000 FS 29.667 3 89 7,617
E.940.120.31I.1B 41.25 33.133 2.2 1.8 226 39.75 18 0.688 35.5 32 1/2-13 UNC 130,900 FS 33.667 3 101 7,531
E.1090.120.31I.1B 47.18 39.13 2.2 1.8 253 45.62 20 0.688 41.5 36 1/2-13 UNC 139,900 FS 39.667 3 119 7,437
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (mm) di (mm) H (mm) Hi / Ho G (kg) Lo (mm) No Bo (mm) Li (mm) ni Bi (mm) Mt (kN-m) Tooth Form D2 (mm) Pd z2 Fz(kg)
E.410.120.31M.1B 518.16 326.39 55.88 45.72 41.72 482.60 8.00 17.48 377.95 16.00 M12 68,478.00 FS 336.55 4.00 53.00 27,061.63
E.540.120.31M.1B 647.70 447.04 55.88 45.72 53.06 609.60 12.00 17.48 498.60 20.00 M12 98,581.20 FS 457.20 4.00 72.00 25,985.22
E.640.120.31M.1B 749.30 548.64 55.88 45.72 67.12 711.20 15.00 17.48 600.20 24.00 M12 1,24,480.80 FS 558.80 4.00 88.00 25,438.11
E.740.120.31M.1B 848.36 650.24 55.88 45.72 77.55 812.80 15.00 17.48 701.80 28.00 M12 1,51,736.40 FS 660.40 4.00 104.00 25,060.03
E.840.120.31M.1B 949.96 739.90 55.88 45.72 92.97 908.05 18.00 17.48 800.10 30.00 M12 1,73,568.00 FS 753.54 3.00 89.00 33,880.42
E.940.120.31M.1B 1,047.75 841.58 55.88 45.72 102.49 1,009.65 18.00 17.48 901.70 32.00 M12 1,77,500.40 FS 855.14 3.00 101.00 33,497.89
E.1090.120.31M.1B 1,198.37 993.90 55.88 45.72 114.74 1,158.75 20.00 17.48 1,054.10 36.00 M12 1,89,704.40 FS 1,007.54 3.00 119.00 33,079.78
Medium Duty
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (in) di (in) H (in) Hi / Ho G (lbs) Lo (in) No Bo (in) Li (in) ni Bi (in) Mt (ft-lbs) Tooth Form D2 (in) Pd z2 Fz(lbs)
E.220.122.11I.1B 12.286 5.709 1.968 1.732 38 10.63 16 0.562 6.89 16 0.562 26,000 FS 12 5/7 60 7,140
E.220.122.22I.1B 12.286 5.709 1.968 1.732 38 10.63 16 5/8-11 UNC 6.89 16 5/8-11 UNC 26,000 FS 12 5/7 60 7,140
E.220.122.11I.4B 12.286 5.709 1.968 1.732 38 10.63 16 0.594 6.89 16 0.594 30,600 FS 12 5/7 60 7,140
E.290.122.11I.1B 14.686 8.268 1.575 1.496 38 13.19 16 0.562 9.449 20 0.562 44,500 FS 14.4 5/7 72 5,810
E.290.122.22I.1B 14.686 8.268 1.575 1.496 38 13.19 16 5/8-11 UNC 9.449 20 5/8-11 UNC 44,500 FS 14.4 5/7 72 5,810
E.290.122.11I.4B 14.686 8.268 1.968 1.732 44 13.19 16 0.594 9.449 20 0.594 52,100 FS 14.4 5/7 72 7,290
E.345.122.11I.1B 17.086 10.433 1.968 1.732 57 15.354 18 0.562 11.614 24 0.562 62,000 FS 16.8 5/7 84 7,330
E.345.122.22I.1B 17.086 10.433 1.968 1.732 57 15.354 18 5/8-11 UNC 11.614 24 5/8-11 UNC 62,000 FS 16.8 5/7 84 7,330
E.345.122.11I.4B 17.086 10.433 1.968 1.732 57 15.354 18 0.594 11.614 24 0.594 71,900 FS 16.8 5/7 84 7,330
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (mm) di (mm) H (mm) Hi / Ho G (kg) Lo (mm) No Bo (mm) Li (mm) ni Bi (mm) Mt (kN-m) Tooth Form D2 (mm) Pd z2 Fz(kg)
E.220.122.11M.1B 312.06 145.01 49.99 43.99 17.23 270.00 16.00 14.27 175.01 16.00 14.27 35,256.00 FS 304.80 5/7 60.00 31,758.72
E.220.122.22M.1B 312.06 145.01 49.99 43.99 17.23 270.00 16.00 M16 175.01 16.00 M16 35,256.00 FS 304.80 5/7 60.00 31,758.72
E.220.122.11M.4B 312.06 145.01 49.99 43.99 17.23 270.00 16.00 15.09 175.01 16.00 15.09 41,493.60 FS 304.80 5/7 60.00 31,758.72
E.290.122.11M.1B 373.02 210.01 40.01 38.00 17.23 335.03 16.00 14.27 240.00 20.00 0.56 60,342.00 FS 365.76 5/7 72.00 25,842.88
E.290.122.22M.1B 373.02 210.01 40.01 38.00 17.23 335.03 16.00 M16 240.00 20.00 M16 60,342.00 FS 365.76 5/7 72.00 25,842.88
E.290.122.11M.4B 373.02 210.01 49.99 43.99 19.95 335.03 16.00 15.09 240.00 20.00 0.59 70,647.60 FS 365.76 5/7 72.00 32,425.92
E.345.122.11M.1B 433.98 265.00 49.99 43.99 25.85 389.99 18.00 14.27 295.00 24.00 0.56 84,072.00 FS 426.72 5/7 84.00 32,603.84
E.345.122.22M.1B 433.98 265.00 49.99 43.99 25.85 389.99 18.00 M16 295.00 24.00 M16 84,072.00 FS 426.72 5/7 84.00 32,603.84
E.345.122.11M.4B 433.98 265.00 49.99 43.99 25.85 389.99 18.00 15.09 295.00 24.00 0.59 97,496.40 FS 426.72 5/7 84.00 32,603.84
Medium Duty
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (in) di (in) H (in) Hi / Ho G (lbs) Lo (in) No Bo (in) Li (in) ni Bi (in) Mt (ft-lbs) Tooth Form D2 (in) Pd z2 Fz(lbs)
E.425.125.33I.1B 20.486 12.75 2.062 2.022 98 18.875 20 5/8-11 UNC 14.375 20 5/8-11 UNC 102,400 FS 20.2 5/7 101 8,700
E.425.125.11I.4B 20.486 12.77 2.375 2.063 99 18.875 20 0.688 14.375 20 0.688 102,400 FS 20.2 5/7 101 8,863
E.505.125.11I.1B 24.65 16.25 2.375 2.063 132 22.25 16 0.813 17.75 20 0.813 159,200 SD 24.25 4 97 10,420
E.505.125.22I.1B 24.65 16.25 2.375 2.063 132 22.25 16 3/4-10 UNC 17.75 20 3/4-10 UNC 159,200 SD 24.25 4 97 10,420
E.564.125.11I.1B 26.9 18.5 2.375 2.063 147 24.5 18 0.813 20 24 0.813 191,600 SD 26.5 4 106 10,460
E.564.125.22I.1B 26.9 18.5 2.375 2.063 147 24.5 18 3/4-10 UNC 20 24 3/4-10 UNC 191,600 SD 26.5 4 106 10,460
E.633.125.11I.1B 29.65 21.25 2.375 2.063 163 27.25 24 0.813 22.75 28 0.813 232,000 SD 29.25 4 117 10,520
E.633.125.22I.1B 29.65 21.25 2.375 2.063 163 27.25 24 3/4-10 UNC 22.75 28 3/4-10 UNC 232,000 SD 29.25 4 117 10,520
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (mm) di (mm) H (mm) Hi / Ho G (kg) Lo (mm) No Bo (mm) Li (mm) ni Bi (mm) Mt (kN-m) Tooth Form D2 (mm) Pd z2 Fz(kg)
E.425.125.33M.1B 520.34 323.85 52.37 51.36 44.44 479.43 20.00 M16 365.13 20.00 M16 1,38,854.40 FS 513.08 5/7 101.00 38,697.60
E.425.125.11M.4B 520.34 324.36 60.33 52.40 44.90 479.43 20.00 17.48 365.13 20.00 17.48 1,38,854.40 FS 513.08 5/7 101.00 39,422.62
E.505.125.11M.1B 626.11 412.75 60.33 52.40 59.86 565.15 16.00 20.65 450.85 20.00 20.65 2,15,875.20 SD 615.95 4.00 97.00 46,348.16
E.505.125.22M.1B 626.11 412.75 60.33 52.40 59.86 565.15 16.00 M20 450.85 20.00 M20 2,15,875.20 SD 615.95 4.00 97.00 46,348.16
E.564.125.11M.1B 683.26 469.90 60.33 52.40 66.66 622.30 18.00 20.65 508.00 24.00 20.65 2,59,809.60 SD 673.10 4.00 106.00 46,526.08
E.564.125.22M.1B 683.26 469.90 60.33 52.40 66.66 622.30 18.00 M20 508.00 24.00 M20 2,59,809.60 SD 673.10 4.00 106.00 46,526.08
E.633.125.11M.1B 753.11 539.75 60.33 52.40 73.92 692.15 24.00 20.65 577.85 28.00 20.65 3,14,592.00 SD 742.95 4.00 117.00 46,792.96
E.633.125.22M.1B 753.11 539.75 60.33 52.40 73.92 692.15 24.00 M20 577.85 28.00 M20 3,14,592.00 SD 742.95 4.00 117.00 46,792.96
Heavy Duty
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (in) di (in) H (in) Hi / Ho G (lbs) Lo (in) No Bo (in) Li (in) ni Bi (in) Mt (ft-lbs) Tooth Form D2 (in) Pd z2 Fz(lbs)
E.700.132.11I.1B 33.534 23.125 2.875 2.563 283 30.625 18 0.938 24.875 24 0.938 338,700 SD 33 3 99 17,290
E.700.132.22I.1B 33.534 23.125 2.875 2.563 283 30.625 18 7/8-9 UNC 24.875 24 7/8-9 UNC 338,700 SD 33 3 99 17,290
E.763.132.31I.1B 35.84 24 3.5 3 398 32.75 24 3/4-10 UNC 26.75 30 0.813 340,000 FS 35.2 2.5 88 18,393
E.820.132.11I.1B 38.201 27.75 2.875 2.563 325 35.25 24 0.938 29.5 28 0.938 443,200 SD 37.667 3 113 17,390
E.820.132.22I.1B 38.201 27.75 2.875 2.563 325 35.25 24 7/8-9 UNC 29.5 28 7/8-9 UNC 443,200 SD 37.667 3 113 17,390
E.915.132.31I.1B 41.84 30 3.5 3 481 38.75 28 3/4-10 UNC 32.75 32 0.813 395,700 FS 41.2 2.5 103 18,608
E.1068.132.31I.1B 47.84 36 3.5 3 562 44.75 32 3/4-10 UNC 38.75 36 0.813 457,000 FS 47.2 2.5 118 18,772
E.1220.132.31I.1B 53.84 42 3.5 3 660 50.75 36 3/4-10 UNC 44.75 40 0.813 517,900 FS 53.2 2.5 133 18,901
E.1372.132.31I.1B 59.84 48 3.5 3 742 56.75 40 3/4-10 UNC 50.75 44 0.813 578,400 FS 59.2 2.5 148 19,005
E.1525.132.31I.1B 65.84 54 3.5 3 800 62.75 44 3/4-10 UNC 56.75 48 0.813 638,800 FS 65.2 2.5 163 19,090
E.875.138.11I.1D 41.85 28.75 3.25 2.88 491 38 20 1.063 31 24 1.063 588,000 SD 41.2 2.5 103 21,290
E.875.138.22I.1D 41.85 28.75 3.25 2.88 491 38 20 1-8 31 24 1-8 588,000 SD 41.2 2.5 103 21,290
E.1015.145.11I.1B 47.444 34.25 4.25 3.875 771 43.875 24 1.188 36.25 28 1.188 873,800 SD 46.8 2.5 117 31,620
E.1015.145.22I.1B 47.444 34.25 4.25 3.875 771 43.875 24 1 1/8-7 UNC 36.25 28 1 1/8-7 UNC 873,800 SD 46.8 2.5 117 31,620
Part Number Outline Dimensions & Weight Mounting Holes Moment Rating Gear Data
Outer Ring Inner Ring
Do (mm) di (mm) H (mm) Hi / Ho G (kg) Lo (mm) No Bo (mm) Li (mm) ni Bi (mm) Mt (kN-m) Tooth Form D2 (mm) Pd z2 Fz(kg)
E.700.132.11M.1B 851.76 587.38 73.03 65.10 128.34 777.88 18.00 23.83 631.83 24.00 23.83 4,59,277.20 SD 838.20 3.00 99.00 76,905.92
E.700.132.22M.1B 851.76 587.38 73.03 65.10 128.34 777.88 18.00 M22 631.83 24.00 M22 4,59,277.20 SD 838.20 3.00 99.00 76,905.92
E.763.132.31M.1B 910.34 609.60 88.90 76.20 180.49 831.85 24.00 M20 679.45 30.00 20.65 4,61,040.00 FS 894.08 2.50 88.00 81,812.06
E.820.132.11M.1B 970.31 704.85 73.03 65.10 147.39 895.35 24.00 23.83 749.30 28.00 23.83 6,00,979.20 SD 956.74 3.00 113.00 77,350.72
E.820.132.22M.1B 970.31 704.85 73.03 65.10 147.39 895.35 24.00 M22 749.30 28.00 M22 6,00,979.20 SD 956.74 3.00 113.00 77,350.72
E.915.132.31M.1B 1,062.74 762.00 88.90 76.20 218.13 984.25 28.00 M20 831.85 32.00 20.65 5,36,569.20 FS 1,046.48 2.50 103.00 82,768.38
E.1068.132.31M.1B 1,215.14 914.40 88.90 76.20 254.87 1,136.65 32.00 M20 984.25 36.00 20.65 6,19,692.00 FS 1,198.88 2.50 118.00 83,497.86
E.1220.132.31M.1B 1,367.54 1,066.80 88.90 76.20 299.31 1,289.05 36.00 M20 1,136.65 40.00 20.65 7,02,272.40 FS 1,351.28 2.50 133.00 84,071.65
E.1372.132.31M.1B 1,519.94 1,219.20 88.90 76.20 336.50 1,441.45 40.00 M20 1,289.05 44.00 20.65 7,84,310.40 FS 1,503.68 2.50 148.00 84,534.24
E.1525.132.31M.1B 1,672.34 1,371.60 88.90 76.20 362.80 1,593.85 44.00 M20 1,441.45 48.00 20.65 8,66,212.80 FS 1,656.08 2.50 163.00 84,912.32
E.875.138.11M.1D 1,062.99 730.25 82.55 73.15 222.67 965.20 20.00 27.00 787.40 24.00 27.00 7,97,328.00 SD 1,046.48 2.50 103.00 94,697.92
E.875.138.22M.1D 1,062.99 730.25 82.55 73.15 222.67 965.20 20.00 M28 787.40 24.00 M28 7,97,328.00 SD 1,046.48 2.50 103.00 94,697.92
E.1015.145.11M.1B 1,205.08 869.95 107.95 98.43 349.65 1,114.43 24.00 30.18 920.75 28.00 30.18 11,84,872.80 SD 1,188.72 2.50 117.00 1,40,645.76
E.1015.145.22M.1B 1,205.08 869.95 107.95 98.43 349.65 1,114.43 24.00 M30 920.75 28.00 M30 11,84,872.80 SD 1,188.72 2.50 117.00 1,40,645.76
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