Spline Shafts And Couplings

Filter

Spline shafts and couplings are used in power transmission systems to transfer torque and rotation from one component to another. Spline shafts have a long, cylindrical rod-type design with...Read more

TB WOODS -

HSH Form Flex Couplings

TB Wood's HSH Form-Flex couplings are designed to transmit torque while compensating for angular, parallel and axial misalignment between two connected shafts. They minimise misalignment forces on the connected equipment and are widely used in cooling fan drive applications. These couplings are available with steel and composite spacer tubing that reduces total cost by eliminating the need for bearings and support structures. The brand's HSH Series Form-Flex couplings range from 1000 rpm to 3800 rpm. A wide range of these couplings (with bore length up to 11 inches) is available on Raptor Supplies.

StyleModelFree End Float +/-Coupling SizeDimension AInertiaMax. BoreMax. RPMPeak O/L TorqueSize
AHSH220.036"225.88"75.6 lbs.-sq. ft.2 3/4"3800 RPM14250 lbs.-in.22mm
RFQ
AHSH260.044"266.88"152 lbs.-sq. ft.3 1/4"3300 RPM24000 lbs.-in.26mm
RFQ
AHSH310.052"318.12"390 lbs.-sq. ft.3.12" , 4.13"2800 rpm36000 lbs.-in.31
RFQ
AHSH350.056"359.12"738 lbs.-sq. ft.3.62" , 4 1/2"2600 RPM66000 lbs.-in.35mm
RFQ
AHSH370.062"3710.06"1090 lbs.-sq. ft.3 3/4" , 4.63"2500 RPM90000 lbs.-in.37
RFQ
AHSH420.067"4211"1710 lbs.-sq. ft.4 1/4" , 5"2400 rpm109500 lbs.-in.42mm
RFQ
AHSH450.072"4511.87"2510 lbs.-sq. ft.4 1/2" , 5 1/2"2250 RPM148500 lbs.-in.45
RFQ
AHSH500.082"5012.9"4570 lbs.-sq. ft.6.13"2000 RPM192000 lbs.-in.50mm
RFQ
AHSH550.092"5515"7400 lbs.-sq. ft.6.88"1800 RPM283500 lbs.-in.55
RFQ
AHSH850.14"8523.75"79000 lbs.-sq. ft.10.38"1100 RPM1243500 lbs.-in.85
RFQ
AHSH600.102"6016"13100 lbs.-sq. ft.7 1/2"1600 RPM391500 lbs.-in.60
RFQ
AHSH700.115"7018.5"25800 lbs.-sq. ft.8 1/2"1400 RPM622500 lbs.-in.70
RFQ
AHSH800.136"8022"58700 lbs.-sq. ft.9.12"1200 RPM1027500 lbs.-in.80
RFQ
AHSH920.156"9225.75"129000 lbs.-sq. ft.11"1000 RPM1560000 lbs.-in.92
RFQ
AHSH92HT0.156"92HT25.75"137000 lbs.-sq. ft.10.5"1000 RPM2100000 lbs.-in.92HT
RFQ
AHSH751/8"7520"37900 lbs.-sq. ft.9"1300 RPM799500 lbs.-in.75
RFQ
StyleModelMax. Bore O/SAngular MisalignmentCoupling SizeMax. RPMDimension BDimension CDimension HMax. Angular Misalignment
ATFI0400-0.5°4008500 RPM13.78"4.13"5.568"-
RFQ
ATFI1900-0.33°19005600 RPM19.69"5.91"9.17"-
RFQ
ATFI2500-0.33°25005200 RPM21.57"6.46"9.45"0.33° /disc pack
RFQ
ATFI3300-0.33°33004900 RPM23.78"7.17"10.63"-
RFQ
ATFI6000-0.33°60004000 RPM28.35"9.06"12.68"-
RFQ
ATFI8500-0.33°85003600 rpm33.07"10.24"14.37"0.33° /disc pack
RFQ
ATFI0140-0.5°14012000 RPM9.84"2.95"3.757"-
RFQ
ATFI0260-0.5°26010000 RPM11.42"3.35"4.662"0.5° /disc pack
RFQ
ATFI0750-0.5°7507500 RPM16.14"4.72"6.46"-
RFQ
ATFI12000-0.33°120003000 RPM36.38"11.5"16.02"0.33° /disc pack
RFQ
ATFI1310-0.5°13106500 RPM19.29"5.71"7.76"-
RFQ
ATFI00272 1/4"0.5°2720000 RPM5.91"1.57"2.143"0.5° /disc pack
RFQ
ATFI00383"0.5°3816500 RPM6.3"1.77"2.891"-
RFQ
StyleModelInertia at D Min.Angular MisalignmentCoupling SizeMax. Angular MisalignmentMax. BoreMax. Bore O/SMax. RPMO/S Hub Dimension
AGP31166.7 lbs.-sq. ft.0.5°311-2.813" , 78" , 86"3 1/8"5400 RPM4.3"
RFQ
AGP321123.01 lbs.-sq. ft.0.5°321-3" , 83" , 90"3 1/4"4900 RPM4.57"
RFQ
AGP332242.39 lbs.-sq. ft.0.5°3320.5° /disc pack3.188" , 87" , 95"3.438"4400 RPM4.95"
RFQ
AGP346429.27 lbs.-sq. ft.0.5°346-107" , 117" , 3 3/4"4 1/4"4100 RPM5.95"
RFQ
AGP380792.67 lbs.-sq. ft.0.5°380-105" , 118" , 3 3/4"4 1/4"3800 RPM6.3"
RFQ
AGP4121607.6 lbs.-sq. ft.0.33°4120.33° /disc pack120" , 135" , 4 1/2"4 3/4"3500 RPM7.2"
RFQ
AGP4193660 lbs.-sq. ft.0.33°419-130" , 150" , 4 1/2"5 1/2"3000 RPM8.07"
RFQ
AGP4248127.6 lbs.-sq. ft.0.33°424-190" , 6.625"-2750 RPM-
RFQ
AGP44413587 lbs.-sq. ft.0.33°4440.33° /disc pack200" , 7"-2500 RPM-
RFQ
AGP45621896 lbs.-sq. ft.0.33°456-220" , 8"-2350 RPM-
RFQ
AGP48333653 lbs.-sq. ft.0.33°483-234" , 8.25"-2200 rpm-
RFQ
AGP51160082 lbs.-sq. ft.0.33°5110.33° /disc pack10" , 280"-2050 RPM-
RFQ
AGP520114979 lbs.-sq. ft.0.33°520-10.375" , 297"-1750 RPM-
RFQ
AGP525185975 lbs.-sq. ft.0.33°525-11" , 322"-1700 RPM-
RFQ
AGP530243383 lbs.-sq. ft.0.33°5300.33° /disc pack11.5" , 338"-1600 RPM-
RFQ
AGP540557906 lbs.-sq. ft.0.33°540-15.75" , 448"-1450 RPM-
RFQ
StyleModelBore SizeItemPrice
A685144138723/4"Flange To Shaft Coupling€517.44
RFQ
A685144138705/8"Shaft and Coupling€517.44
RFQ
StyleModelDimension HLBore SizeCoupling SizeDimension SMax. BoreMax. SpeedMax. TorqueOverall LengthPrice
A685144136951"7/16"RRU501.56"1"30000 RPM82 In.Lbs.3.52"€184.09
RFQ
A685144137401.25"3/8"RRU751.81"1.25"20000 RPM175 In.Lbs.4.27"€233.25
RFQ
StyleModelMax. BoreAxial Misalignment (Δ Ka)Bore SizeMax. Parallel Misalignment (In.)Max. SpeedMax. TorqueMin. BoreOverall LengthPrice
A685144133510.75"0.04"3/4 x 3/4"0.028"20000 RPM175 In.Lbs.0.375"3.31"€517.44
RFQ
A685144260990.75"0.04"5/8 x 5/8"0.028"20000 RPM175 In.Lbs.0.375"3.31"€517.44
RFQ
A685144441080.75"0.04"5/8 x 3/4"0.028"20000 RPM175 In.Lbs.0.375"3.31"€517.44
RFQ
A685144443070.625"0.035"1/2 x 5/8"0.019"20000 RPM126 In.Lbs.0.313"2.72"€488.82
RFQ
A685144132550.625"0.035"5/8 x 5/8"0.019"20000 RPM126 In.Lbs.0.313"2.72"€488.82
RFQ
A685144134090.875"0.04"7/8 x 7/8"0.035"10000 rpm346 In.Lbs.0.438"3.5"€563.08
RFQ
A685144261051"0.04"3/4 x 3/4"0.03"6000 rpm565 In.Lbs.0.438"4.12"€807.80
RFQ
A685144134611"0.04"1 x 1"0.03"6000 rpm565 In.Lbs.0.438"4.12"€807.80
RFQ
A685144442191.5"0.04"1 3/8 x 1 7/16"0.041"3000 rpm1890 In.Lbs.0.75"6.28"€1,554.00
RFQ
A685144483251.25"0.04"3/4 x 3/4"0.044"6000 rpm755 In.Lbs.0.625"4.88"€905.80
RFQ
A685144135411.25"0.04"1 1/4 x 1 1/4"0.044"6000 rpm755 In.Lbs.0.625"4.88"€905.80
RFQ
TB WOODS -

AA Form Flex Couplings

TB Wood's Form-Flex couplings connect two shafts and transmit torque / power effectively from one shaft to the other. They compensate for angular, parallel and axial misalignment between two connected shafts at a closer distance. These AA couplings feature a flexible disc to minimise misalignment forces and allow easy interchangeability, thereby reducing downtime & maintenance time. Choose from a wide range of these Form-Flex couplings, available in torque ratings ranging from 2363 to 17010 lb-inch on Raptor Supplies.

StyleModelFree End Float +/-Coupling SizeDimension AInertiaMax. BoreMax. RPMPeak O/L TorqueWeight
AAA50.03"52.65"1.4 lbs.-sq. ft.0.88" , 1.19"3600 rpm450 lbs.-in.1.76 Lbs.
RFQ
AAA100.04"103.19"3.35 lbs.-sq. ft.1 1/4" , 1.63"3500 RPM1200 lbs.-in.2.77 Lbs.
RFQ
AAA150.042"153.65"6.66 lbs.-sq. ft.1 3/4" , 1.38"3450 RPM2363 lbs.-in.4.24 lbs.
RFQ
AAA200.055"204.08"10.2 lbs.-sq. ft.1.69" , 2.13"3350 RPM3300 lbs.-in.5.48 lbs.
RFQ
AAA250.06"254.95"29.4 lbs.-sq. ft.2" , 2.56"3200 RPM5700 lbs.-in.9.81 Lbs.
RFQ
AAA300.065"305.63"59 lbs.-sq. ft.2.38" , 2.88"3000 RPM10395 lbs.-in.15 Lbs.
RFQ
AAA350.085"356.63"121 lbs.-sq. ft.2.94" , 3 3/4"2800 rpm17010 lbs.-in.22.4 lbs.
RFQ
StyleModelMax. BoreAxial Misalignment (Δ Ka)Bore SizeMax. Parallel Misalignment (In.)Max. SpeedMax. TorqueMin. BoreOverall LengthPrice
A685144260980.5"0.01"1/2 x 1/2"0.014"30000 RPM82 In.Lbs.0.313"1.82"€445.94
RFQ
A685144261000.75"0.02"5/8 x 5/8"0.019"20000 RPM175 In.Lbs.0.375"2.72"€517.44
RFQ
A685144133840.75"0.02"3/4 x 3/4"0.019"20000 RPM175 In.Lbs.0.375"2.72"€516.60
RFQ
A685144454770.625"0.02"1/2 x 5/8"0.019"20000 RPM126 In.Lbs.0.313"2.28"€488.82
RFQ
A685144474420.625"0.02"1/2 x 1/2"0.019"20000 RPM126 In.Lbs.0.313"2.28"€488.82
RFQ
A685144133000.625"0.02"5/8 x 5/8"0.019"20000 RPM126 In.Lbs.0.313"2.28"€488.82
RFQ
A685144452480.875"0.02"5/8 x 7/8"0.024"10000 rpm346 In.Lbs.0.438"2.91"€563.08
RFQ
A685144134260.875"0.02"7/8 x 7/8"0.024"10000 rpm346 In.Lbs.0.438"2.91"€542.50
RFQ
A685144261030.875"0.02"5/8 x 5/8"0.024"10000 rpm346 In.Lbs.0.438"2.91"€563.08
RFQ
A685144261040.875"0.02"3/4 x 3/4"0.024"10000 rpm346 In.Lbs.0.438"2.91"€563.08
RFQ
A685144463091"0.02"5/8 x 1"0.03"6000 rpm565 In.Lbs.0.438"3.56"€807.80
RFQ
A685144134931"0.02"1 x 1"0.03"6000 rpm565 In.Lbs.0.438"3.56"€807.80
RFQ
A685144135701.25"0.02"1 1/4 x 1 1/4"0.03"6000 rpm755 In.Lbs.0.625"3.75"€905.80
RFQ
A685144441131.25"0.02"1 x 1"0.03"6000 rpm755 In.Lbs.0.625"3.75"€905.80
RFQ
A685144445841.25"0.02"1 x 1 1/4"0.03"6000 rpm755 In.Lbs.0.625"3.75"€905.80
RFQ
A685144451931.25"0.02"5/8 x 5/8"0.03"6000 rpm755 In.Lbs.0.625"3.75"€905.80
RFQ
A685144457171.375"0.02"7/8 x 7/8"0.35"6000 rpm1260 In.Lbs.0.625"4.12"€1,276.80
RFQ
StyleModelBore SizeBore Size ABore Size BOutside Dia.Total Length
AUPS-A100008P-1"0.500"2"3"
RFQ
AUPS-A012008P-0.750"0.500"1.750"2.500"
RFQ
AUPS-A100012P-1"0.750"2"3"
RFQ
AUPS-A008008P0.500"--1.375"2"
RFQ
AUPS-A012012P0.750"--1.750"2.500"
RFQ
AUPS-A100100P1"--2"3"
RFQ
Stafford Mfg -

Solution Series, UPS Sliding Mounts

StyleModelInside Dia.Outside Dia.Total Length
AUPS-A008SM0.500"1.375"1.375"
RFQ
BUPS-A008SMU0.500"1.625"2.750"
RFQ
BUPS-A012SMU0.750"1.750"3"
RFQ
AUPS-A012SM0.750"1.750"1.750"
RFQ
BUPS-A100SMU1"2"3.250"
RFQ
AUPS-A100SM1"2"2.125"
RFQ
StyleModel
A1302264056
RFQ
A1302264080
RFQ
A1302264104
RFQ
A1302264066
RFQ
A1302264055
RFQ
A1302264102
RFQ
StyleModelLengthCoupling SizeDimension BCMax. BoreMax. SpeedMax. TorqueMin. BorePin Location (Dimension SL)Price
A685144139231.56"UF501.5"1"30000 RPM82 In.Lbs.0.375"0.5"€363.03
RFQ
A685144139523.44"UF1504.38"2.125"3000 rpm1890 In.Lbs.0.75"0.82"€1,394.99
RFQ
StyleModelMax. Parallel Misalignment (In.)Axial Misalignment (Δ Ka)Bore Dia.Max. SpeedMax. TorqueMin. BoreOverall LengthPin Location (Dimension SL)Price
A685144448090.009"0.015"0.375"30000 RPM39 In.Lbs.0.25"1.65"0.25"€420.21
RFQ
A685144131030.009"0.015"0.375"30000 RPM39 In.Lbs.0.25"1.65"0.25"€420.21
RFQ
A685144419500.014"0.01"0.5"30000 RPM82 In.Lbs.0.313"1.82"0.31"€445.94
RFQ
A685144508490.019"0.02"0.625"20000 RPM126 In.Lbs.0.313"2.28"0.38"€488.82
RFQ
A685144133590.019"0.02"0.75"20000 RPM175 In.Lbs.0.375"2.72"0.41"€517.44
RFQ
StyleModelBore SizeBore Size ABore Size BOutside Dia.Total Length
AUPS-A012008N-0.750"0.500"1.750"2.500"
RFQ
AUPS-A100008N-1"0.500"2"3"
RFQ
AUPS-A100012N-1"0.750"2"3"
RFQ
AUPS-A008008N0.500"--1.375"2"
RFQ
AUPS-A012012N0.750"--1.750"2.500"
RFQ
AUPS-A100100N1"--2"3"
RFQ
Stafford Mfg -

Signature Series, One Piece Split Precision Sleeve Couplings

StyleModelBore SizeKeyway SizeOutside Dia.Screw SizeTotal LengthTypePrice
A5L100100KPSC1"1/4"2"1/4-28 x 3/43"High Strength€147.42
RFQ
B5L100100FKPSC1"1/4"2"1/4-28 x 3/43"High Strength€191.18
RFQ
B5L108108FKPSC1-1/2"3/8"2.500"1/4-28 x 3/43.750"High Strength€245.17
RFQ
A5L108108KPSC1-1/2"3/8"2.500"1/4-28 x 3/43.750"High Strength€215.33
RFQ
A5L104104KPSC1-1/4"1/4"2.250"1/4-28 x 3/43.375"High Strength-
RFQ
B5L104104FKPSC1-1/4"1/4"2.250"1/4-28 x 3/43.375"High Strength-
RFQ
A5L008008KPSC1/2"1/8"1.250"8-32 x 1/21.875"High Strength€120.43
RFQ
B5L008008FKPSC1/2"1/8"1.250"8-32 x 1/21.875"High Strength€160.00
RFQ
B5L012012FKPSC3/4"3/16"1.750"1/4-28 x 3/42.625"High Strength€160.61
RFQ
A5L012012KPSC3/4"3/16"1.750"1/4-28 x 3/42.625"High Strength€137.63
RFQ
B5L010010FKPSC5/8"3/16"1.500"10-32 x 5/82.250"High Strength€186.77
RFQ
A5L010010KPSC5/8"3/16"1.500"10-32 x 5/82.250"High Strength€145.89
RFQ
C5LM012012KPSC12 mm4mm28mmM4 x 0.7 x 12 mm45 mmPrecision Sleeve€107.41
RFQ
C5LM014014KPSC14 mm5mm30mmM4 x 0.7 x 12 mm50 mmPrecision Sleeve€116.17
RFQ
C5LM015015KPSC15 mm5mm34mmM5 x 0.8 x 16 mm50 mmPrecision Sleeve€119.62
RFQ
C5LM016016KPSC16 mm5mm34mmM5 x 0.8 x 16 mm50 mmPrecision Sleeve€111.15
RFQ
C5LM018018KPSC18 mm6 mm36mmM5 x 0.8 x 16 mm60 mmPrecision Sleeve€114.26
RFQ
C5LM020020KPSC20 mm6 mm40mmM6 x 1.0 x 18 mm65 mmPrecision Sleeve€161.99
RFQ
C5LM025025KPSC25 mm8 mm45mmM6 x 1.0 x 18 mm65 mmPrecision Sleeve€135.56
RFQ
C5LM030030KPSC30 mm8 mm54mmM6 x 1.0 x 16 mm75 mmPrecision Sleeve-
RFQ
C5LM035035KPSC35 mm10mm57mmM6 x 1.0 x 18 mm80 mmPrecision Sleeve-
RFQ
C5LM040040KPSC40 mm12mm60mmM6 x 1.0 x 18 mm90 mmPrecision Sleeve€288.23
RFQ
C5LM045045KPSC45 mm14mm73mmM8 x 1.25 x 25 mm105 mmPrecision Sleeve-
RFQ
Stafford Mfg -

Signature Series, Two Piece Split Precision Sleeve Couplings

StyleModelTotal LengthBore SizeGradeTypeKeyway SizeMaterialOutside Dia.Screw MaterialPrice
A13S005005PSC1.250"5/16"303Precision Sleeve-Stainless Steel0.813"18-8 Stainless Steel€126.21
RFQ
B13A004004PSC1.250"1/4"2024Precision Sleeve-Aluminum0.813"Alloy Steel€114.14
RFQ
B13A005005PSC1.250"5/16"2024Precision Sleeve-Aluminum0.813"Alloy Steel€114.14
RFQ
C13C0050051.250"5/16"-High Strength-316 Stainless Steel0.813"--
RFQ
D13L005005PSC1.250"5/16"1215Precision Sleeve-Steel0.813"Alloy Steel-
RFQ
A13S004004PSC1.250"1/4"303Precision Sleeve-Stainless Steel0.813"18-8 Stainless Steel-
RFQ
D13L004004PSC1.250"1/4"1215Precision Sleeve-Steel0.813"Alloy Steel€116.70
RFQ
C13C0040041.250"1/4"-High Strength-316 Stainless Steel0.813"--
RFQ
E15L004004PSC1.625"1/4"1215Precision Sleeve-Steel1.063"Alloy Steel€67.09
RFQ
F15A005005PSC1.625"5/16"2024Precision Sleeve-Aluminum1.063"Alloy Steel-
RFQ
G15C0050051.625"5/16"-High Strength-316 Stainless Steel1.063"--
RFQ
B13A006006PSC1.625"3/8"2024Precision Sleeve-Aluminum1.063"Alloy Steel€119.91
RFQ
D13L006006PSC1.625"3/8"1215Precision Sleeve-Steel1.063"Alloy Steel€95.51
RFQ
H15S005005PSC1.625"5/16"303Precision Sleeve-Stainless Steel1.063"18-8 Stainless Steel-
RFQ
A13S006006PSC1.625"3/8"303Precision Sleeve-Stainless Steel1.063"18-8 Stainless Steel-
RFQ
C13C0060061.625"3/8"-High Strength-316 Stainless Steel1.063"--
RFQ
H15S004004PSC1.625"1/4"303Precision Sleeve-Stainless Steel1.063"18-8 Stainless Steel-
RFQ
E15L005005PSC1.625"5/16"1215Precision Sleeve-Steel1.063"Alloy Steel€79.23
RFQ
G15C0040041.625"1/4"-High Strength-316 Stainless Steel1.063"--
RFQ
F15A004004PSC1.625"1/4"2024Precision Sleeve-Aluminum1.063"Alloy Steel-
RFQ
C13C0080081.875"1/2"-High Strength-316 Stainless Steel1.250"--
RFQ
D13L007007PSC1.875"7/16"1215Precision Sleeve-Steel1.250"Alloy Steel€73.31
RFQ
D13L008008PSC1.875"1/2"1215Precision Sleeve-Steel1.250"Alloy Steel€90.32
RFQ
A13S007007PSC1.875"7/16"303Precision Sleeve-Stainless Steel1.250"18-8 Stainless Steel€145.99
RFQ
A13S008008PSC1.875"1/2"303Precision Sleeve-Stainless Steel1.250"18-8 Stainless Steel-
RFQ
HUB CITY -

Splined Couplings

StyleModelPrice
A0332-00365€124.36
RFQ
A0332-00340€94.39
RFQ
B0332-00345€78.46
RFQ
A0332-00337€79.95
RFQ
A0332-00348€113.11
RFQ
C0332-00341€81.94
RFQ
A0332-00336€79.95
RFQ
A0332-00344€77.32
RFQ
A0332-00320€92.32
RFQ
A0332-00351€242.40
RFQ
A0332-00338€90.10
RFQ
A0332-00367€149.74
RFQ
A0332-00346€193.89
RFQ
A0332-00342€110.42
RFQ
A0332-00349€201.78
RFQ
A0332-00066€98.98
RFQ
THOMAS & BETTS -

Reducing Coupling, Explosion Proof, 1 Inch To 3/4 Inch Size

ModelItemPrice (ex. VAT)
K973NPBK9JHN€10.75
See Details
LOVEJOY -

One Piece Shaft To Shaft Coupling, 150 Coupling Size, 3.75 Inch OD, Steel

ModelItemPrice (ex. VAT)
68514448922AN9BFL€657.47
See Details
LOVEJOY -

Flange To Shaft Coupling, Size 3/4 x 3/16 Inch

ModelItemPrice (ex. VAT)
68514413865AK3XAF€517.44
See Details
LOVEJOY -

Coupling Hub, 0.75 Inch Bore Size, With Keyway, Metallic

ModelItemPrice (ex. VAT)
69790400057AL9TJD€422.46
See Details

Spline Shafts And Couplings

Hub City spline shafts are specially designed for transmitting high amount of torque force and rotation. These plain and involute splined shafts feature 1215 cold-rolled steel to deliver fair vibration damping and excellent chemical resistance. We also offer Hub City couplings in 1144 stress-proofed steel to connect and transmit torque between two rotating shafts. These couplers feature Kwik-D-Tach connection for safe and secure attachments.

Frequently Asked Questions

What is overall length tolerance?

OAL (overall length tolerance) refers to the allowable deviation from the nominal or desired length of the coupling. It helps to position and align the coupling on the shafts it is connecting.

What is the purpose of keyways in Lovejoy couplings?

Keyways are grooves or slots that are machined into the bore of the coupling hub and include a matching key that is installed in the keyway to connect the hub to the shaft. These keyways help transmit torque, ease installation and provide accurate alignment between the shaft and the coupling.

How to maintain a spline coupling?

  • Regular visual inspections are needed to identify any signs of wear or damage of the spline coupling, such as cracks and corrosion.
  • Ensure the coupling is properly aligned to maintain smooth operation and prevent premature wear.
  • Regularly lubricate the coupling to prevent wear and reduce friction.
  • Ensure that spline couplings are not subjected to overload conditions, as this can cause permanent deformation and reduce the strength of the spline teeth.

How do I select the right type of shaft coupling for my application?

The choice of coupling depends on shaft misalignment, torque requirements, speed and environmental conditions.

What is the difference between rigid couplings and flexible couplings?

Rigid couplings do not allow any angular or parallel misalignment between shafts. They provide a solid, backlash-free connection. In contrast, flexible couplings accommodate some degree of misalignment and are often used to dampen vibrations and shock loads in machinery.

How do I calculate the torque capacity of a spline shaft?

    To calculate the torque capacity of a spline shaft, you can use the formula:
    • Torque (T) = Shaft Diameter (D) x Material Strength (S) x Safety Factor (SF)

What is the difference between external spline and internal spline configurations?

External spline refers to the presence of the splines on the outside surface of a shaft, while internal spline refers to the splines inside a cylindrical bore.

How does rigid, flexible and fluid connection coupling differ from each other?

Rigid couplings provide a solid connection with no flexibility, flexible couplings offer misalignment compensation, and fluid couplings use hydraulic principles for torque transmission and speed control.