HF 2016 NTN 20x26x16 Drawn-Cup One-Way Clutch

NTN HF 2016 is a drawn-cup one-way clutch with dimensions 20x26x16 mm, designed to transmit torque in one rotational direction while allowing free rotation in the opposite direction. NTN classifies the HF series as drawn-cup one-way clutches manufactured with a pressed steel outer shell. The official NTN catalogue specifies a 28.5 Nm torque capacity for HF2016.

Technical Specifications

Manufacturer: NTN
Designation: HF 2016 / HF2016
Product type: One-way clutch
Design: Drawn-cup type
Shaft diameter Fw: 20 mm
Outside diameter D: 26 mm
Width C: 16 mm
Dimensions: 20x26x16 mm
Torque capacity: 28.5 Nm
Torque capacity: 291 kgf cm
Reference mass: 17 g
Outer shell: Pressed steel
Lubrication: Prelubricated with standard grease L313
Function: Torque transmission in one direction.

NTN HF2016 Dimensions

Official NTN catalogue dimensions are:

Fw: 20 mm
D: 26 mm
C: 16 mm

The complete nominal size is therefore 20x26x16 mm.

Torque Capacity 28.5 Nm

For the HF2016, NTN specifies a torque capacity of:

28.5 Nm

This value is particularly important when selecting a one-way clutch for an existing mechanical system. Replacement selection should not be based on dimensions alone, because torque capacity and installation conditions also determine suitability.

HF Drawn-Cup Construction

NTN classifies the HF series as drawn-cup one-way clutches. The compact pressed-steel construction minimizes the radial space required for installation.

The clutch locks and transmits torque in one direction. When rotation is reversed, the mechanism permits overrunning rather than transmitting torque. NTN specifically defines the HF series as providing torque transmission in one direction.

HF2016 Without Integrated Radial Bearing

An important distinction exists between the HF and HFL series.

The standard HF is the clutch element itself. NTN describes HFL as the drawn-cup one-way clutch version with radial bearings mounted on both sides of the clutch, enabling it to withstand constant radial load. Therefore, where radial shaft support is required, the surrounding bearing arrangement must be considered when using HF2016.

Typical Functions

The operating principle of NTN HF2016 makes it suitable for mechanisms requiring:

• one-way torque transmission
• overrunning
• indexing
• backstopping
• compact drive arrangements
• intermittent mechanical motion

The exact suitability depends on torque, rotational speed, shaft and housing design, lubrication and operating conditions.

HF2016 NTN Replacement Identification

When identifying or replacing the clutch, verify:

Brand: NTN
Designation: HF2016
Shaft diameter: 20 mm
Outside diameter: 26 mm
Width: 16 mm
Torque capacity: 28.5 Nm
Design: Drawn-cup one-way clutch

A dimensionally similar 20x26x16 mm product from another manufacturer should not automatically be considered technically identical without checking its torque capacity and installation requirements.

FAQ - NTN HF 2016

What are the dimensions of NTN HF2016?
The official NTN dimensions are 20x26x16 mm: Fw 20 mm, D 26 mm and C 16 mm.

What type of component is NTN HF2016?
It is a drawn-cup one-way clutch.

What is the torque capacity of HF2016 NTN?
NTN specifies a torque capacity of 28.5 Nm.

How much does NTN HF2016 weigh?
The reference mass given by NTN is approximately 17 g.

What does the HF series do?
NTN specifies the HF series for torque transmission in one direction.

Is HF2016 the same as HFL2016?
No. The HFL series incorporates radial bearing support on both sides of the clutch, while the HF series is the basic drawn-cup one-way clutch design.

Is NTN HF2016 prelubricated?
Yes. NTN documentation states that the HF series is prelubricated with standard grease L313