Ultra-Thin Reducer - PSR Series | Thin Differential Reducer

A differential speed reducer featuring high rigidity and extreme flatness made possible through thin cross roller bearings and a pin-and-hole type drive.

Its sleek, polished design contributes to the shortening and compactness of a variety of equipment.

Technical Information

Standard Differential Reducer PSR series

Highlights

Ultra-flat and compact design

The adoption of a differential reduction mechanism and a thin cross-roller bearing has enabled an ultra-flat form. This contributes to the realization of contraction and compactification of equipment.

High rigidity

High contact ratio and load dispersion have realized extremely high rigidity.

High Accuracy

High transmission accuracy made possible through multiple meshing of high-accuracy rollers and high-precision trochoidal gears.

Small backlash

High-precision positioning with a backlash under 3 arcmins achieved by optimizing each component’s clearance.

High Efficiency

Appropriate pressure angle settings for smooth operation and high efficiency.

Maintenance-free

Grease-filled and maintenance-free. No need to refuel and no restrictions on mounting position.

Motor Attachment Standardization

The PSR Series has standardized motor attachments for servo motors of various manufacturers, allowing the motor to be immediately installed after purchase.

Ultra-thin Differential Reducer

PSR	1
70	2
F	3
H	4
A
19	5
A01	6
08	6

1.Product Name	PSR series
2.Frame Number	70,110,135
3.Output shaft shape	F:Flange output S:Shaft output
4.Input shaft shape	H:Key hole C:Clamp S:Shaft
5.Reduction ratio	Frame Number 70:19,39,49 Frame Number 110:19,39,59 Frame Number 135:19,39,59
6.Motor mounting code	Please refer to the dimension table or motor and reducer compatibility table.(Catalog: P9-15）
7.Input shaft hole diameter	Please refer to the specification table.(Catalog: P6）

*The motor mounting symbol and input shaft hole diameter are not marked for shaft input.

Specifications

Model

PSR70			PSR110			PSR135

Reduction ratio
Rotational direction of output axis to input axis
Allowable rated torque	N･m
Acceleration peak torque	N･m
Maximum instantaneous torque	N･m
Allowable average number of input revolutions	rpm
Max input rpm	rpm
Backlash	arcmin
Recommendable motor capacity	W
Input axis equivalent inertia moment	x10^-4 kg･m²
Input shaft hole diameter	mm
Mass (without motor attachment)	kg
Outline Drawing (F type, S type)
CAD Data
Catalog
Instruction Manual

19	39	49	19	39	59	19	39	59
Reverse			Reverse			Reverse
16	26	26	32	65	65	65	130	130
32	52	52	65	130	130	130	260	260
48	90	96	96	195	195	195	390	390
3000			3000			3000
4500			4500			4500
4			3			3
100			200･400			750
0.037	0.036	0.036	0.310	0.298	0.295	1.337	1.295	1.287
6･8			8･10･11･14			14･16･19
0.6			2.1			4.1
PDF　PDF			PDF　PDF			PDF　PDF
CAD
PDF
PDF

Thin Differential Reducer Line-up

Lightweight Differential Reducer
PSL series

Frame number: 70,110
Reduction ratio: 19 - 59
Acceleration peak torque（N･m）: 26 - 104

Frame number

70,110

Reduction ratio

19 - 59

Acceleration peak torque（N･m）

26 - 104

Series List

Standard Differential Reducer PSR series