DS Type Single Element (Non-spacer) coupling (Note: DS units do not accept Radial Misalignment. D Type Double Element (spacer) Coupling.	• Variations in DBSE are available on D Type to suit customer requirements. Please refer to Bibby Turboflex for extreme variations. Long shafts may be fabricated in steel or composite tube (DJCFT) units may be considered. • Momentary overloads of 2x stated rating and shock loads of 3.7x stated rating are permitted. • Maximum speeds shown are for standard design & materials. Higher speeds may be possible. Consult Bibby Turboflex.	• The maximum bores shown are for cylindrical or tapered shafts with international standard rectangular keys. Units can be supplied with other forms of shaft connection. Please consult Bibby Turboflex. • Unless specified to the contrary, hub bores will be manufactured with H6 tolerance up to 50mm diameter and H7 above 50mm. • Unit inherent balance is better than Q16. Balance to Q6.3 or Q2.5 may be recommended or is available upon request.
Note: smaller DBSEs can be accommated by using a bore smaller than the stated maximum.