The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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Lovejoy / Sier-Bath Nyflex® and Mite®
    Lovejoy / Sier-Bath Nylon couplings are compact and require no lubrication. They operate over a wide temperature range at speeds up to 5,000 RPM and are effectively used in applications such as Motor/ Generator sets, pump sets, and many light to medium duty industrial coupling applications.

    No lubricants are ever required, eliminating the need for seals. The resilient nature of the nylon material makes the contact of the hubs and sleeves almost frictionless. Since no lubrication is used, the coupling can readily be adapted to many applications including vertical and blind installations where the slip-together components offer easy inspection and adjustment.
    Operationally, the coupling offers a minimum backlash solution that will operate in ambient temperature environments from -40° to 150° F. Nylon Sleeve couplings have precision molded sleeves and hubs with no bolts, pins, flanges, or protrusions to affect balance or safety. The nylon sleeve permits misalignment up to 5° for Dentex and Nyflex couplings and 3° for the Mite.
    When completely assembled, the Mite coupling weighs less than 1lb and the Nyflex only 3.50 lbs.
    The Nyflex and Mite coupling consists of two sintered iron flex hubs, one Nylon sleeve and two Spiirolox rings.
Nyflex® Type Coupling Hubs w/ Keyway - Metric
Nyflex® Type Coupling Hubs w/ Keyway - Metric-2
Unit of Measure
Items Nyflex® Type Coupling Hubs w/ Keyway - Metric
69790400012
Nyflex® Type Coupling Hubs w/ Rough Stock Bore - Imperial 		Nyflex® Type Coupling Hubs w/ Keyway - Metric
69790400025
Nyflex® Type Coupling Hubs w/ Rough Stock Bore - Imperial
Description  N/A NYFL-HUB-RSB N/A NYFL-HUB-SS-RSB
Size N/A NYFL
Type N/A Gear Coupling Hubs
Hub Material N/A Sintered Iron
Length thru Bore N/A 1.630 in41.40 mm
Style N/A Unbored
Dimension HD N/A 2.380 in60.45 mm
Overall Length N/A 3.380 in85.85 mm
Outside Diameter N/A 3.750 in95.25 mm
Color N/A Metallic
Bore Type N/A Rough Stock Bore
Max. Bore (Dimensions ID1/ID2) N/A 1.625 in41.28 mm
Dimension LS N/A 1.880 in47.75 mm
Distance between Shaft Ends (Dimension BSE) N/A 0.13 in3.30 mm
Max. Angular Misalignment N/A 5.00 º
Coupling Type N/A Gear
Weight N/A 2.10 lb
Complete Coupling Weight N/A 3.50 lb
Cubic inches N/A 9.23297 in³