Features
・New coupling that incorporates tolerance endplay function like a universal joint. |
Configuration and materials
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Assembly:Example Application |
1).Since eccentricity is not allowed in single unit, the shaft is supported on one side by the same coupling. 2).The outer hub and inner hub should be assembled in their correct relative positions, without detaching them from each other. 3).The relationship between abrasion and angular misalignment: the balls slip through the groove of the outer hub during each rotation. |
Rotational life test(Ex.1:Light load rotational life test)
Abrasion (backlash) is given by torque × slip × rpm. |
Conditions 1 ) Continuous rotation of 60million cycles at a load torque of 0.2Nm, angular misalignment 5°, and speed 2960 rpm. Lubrication: special high-viscosity grease (our standard) was applied once before the test. Test results: no decrease in strength, increase in backlash from 0.6°to 1.1° Conditions 2 ) Continuous rotation of 60million cycles at a load torque 0.2Nm, angular misalignment 10°, and speed 2960 rpm. Lubrication: special high-viscosity grease (our standard) was applied once before the test. Test results: no decrease in strength, increase in backlash from 0.6°to 1.7° |
Dimensions
Item No. |
Standard hole diameters ød1,ød2 H8 (left/right can be freely conbined) |
M | Fastening torque (N⋅m) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBSC 20 | 6 | 8 | 10 | 12 | 4 | 2.5 |
Specifications
Item No. |
Rated torque (N⋅m) |
Static failure torque (N⋅m) | Torsional rigidity (N⋅m/rad) |
Back lash (deg. MAX) |
Allowable end play |
Allowable angular misalignment (°) | Allowable rotating speed (rpm) |
Mass (g) |
---|---|---|---|---|---|---|---|---|
DBSC20 | 6 | 34 | 750 | ≦ 1.2 |
±2.5mm at angular misalignment ≦5° ±1mm at angular misalignment =15° |
15(MAX) | 1,500 | 26 |
Note:Rated torque is for angular misalignment ≦ 5°. At a deflection of 15°, the rated torque will be approximately 1/3 these values.