L 35 - AXIS GS Couplings

Coupling		Power Rating						Pilot Drill Size	Max. Bore D	ØA		Length thru' Bore L1	ØB	Gap G	ØE	DBSE	Overall Length TL1
Coupling		Synthetic Rubber		Polyurethane		H-Trans				SW/ RRS	L
Type	Size	Rated Torque (Nm)	kW @ 100 rpm	Rated Torque (Nm)	kW @ 100 rpm	Rated Torque (Nm)	kW @ 100 rpm			SW/ RRS	L
L	35	0.38	0.004	-	-	-	-	-	10	-	16	6.5	16	1	-	-	21

The L 35 Jaw Coupling serves as the foundational entry in this technical series, specifically engineered for fractional horsepower applications where space is at a premium. Despite its small stature, it utilizes the same rugged "fail-safe" engineering found in larger industrial models. This coupling consists of two precision-machined hubs and a specialized elastomeric spider that fits snugly between them. By utilizing a compression-style power transfer, the L 35 effectively isolates the motor from the driven load, preventing the transmission of heat and electrical currents across the shafts.

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Key Specifications

The Size 35 is the most compact coupling in the series, designed for precision and light-duty applications. Its specific technical metrics include:

Rated Torque: 0.38 Nm using Synthetic Rubber.
Power Capacity: 0.004 kW at 100 rpm.
Max Bore (D): Can be machined up to a 10mm diameter.
Compact Dimensions: An overall length (TL1) of 21mm and an outer diameter (ØB) of 16mm.
Operating Gap (G): Requires a 1mm clearance between hubs for proper flexibility.

How It Works

The L 35 coupling utilizes a simple but effective three-piece design to transmit power between small shafts:

Jaw Meshing: Two metal hubs with protruding jaws interlock with a central elastomeric "spider" insert.
Compression Transmission: Power is transferred as the spider legs are compressed between the jaws, eliminating metal-to-metal contact.
Misalignment Handling: The flexible spider allows the coupling to absorb minor angular and parallel shaft misalignments during rotation.

Benefits

The L 35 model provides several advantages for small-scale mechanical assemblies:

Fail-Safe Design: If the spider fails, the jaws will lock, preventing a total loss of drive in critical situations.
Vibration Damping: The rubber insert absorbs high-frequency vibrations, protecting sensitive equipment like encoders.
No Lubrication: The system is maintenance-free, requiring no grease or oil throughout its service life.
Zero Maintenance: Aside from occasional inspection of the spider, the coupling requires no ongoing attention.

Applications

Because of its small footprint, the L 35 is commonly used in the following areas:

Stepper Motors: Ideal for NEMA 11 and NEMA 14 motor applications.
Medical Equipment: Used in small laboratory pumps and diagnostic machines.
Precision Instruments: Connecting control knobs or sensors to internal shafts.
Office Automation: Found in paper handling systems for printers and photocopiers.

Summary

The L 35 Jaw Coupling is the ideal entry-level solution for low-torque requirements (0.38 Nm). It offers the smallest physical profile in the technical table, ensuring that even the most space-constrained designs can benefit from the vibration damping and shaft protection of a flexible jaw system.