EN 7822 Gear Racks Plastic, for Spur Gears, Pressure Angle 20°, Module 1 / 1.5 / 2 / 3

ELESA original design
code: ZCR-A

Standard Sheet EN 7822 Print This Page Gear Wheels - Leaflet General Notes for Gears Technical Instructions for Gears Plastic Characteristics

Product description

Gear racks EN 7822 are used in combination with spur gears EN 7802 to convert rotary motion into linear motion. They are used in automation applications with high repeatable precision and frequent changes of direction and load.

The steel core increases the stiffness and prevents bending of the racks. In addition, modules 1 / 1.5 / 2 are designed for continuous installation of the racks.

The gear racks have a reference profile toothing with a pressure angle of 20°. The force F_S refers to the maximum permissible force that can be applied to a single tooth.

Specification

Plastic
Technopolymer (Polyamide PA)

Glass fiber reinforced
Temperature resistant up to 248 °F (120 °C)
GrayGR

RoHS

On request

Other types

EN 7822 Plastic Gear Racks, for Spur Gears, Pressure Angle 20°, Module 1 / 1.5 / 2 / 3 sketch

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Part Options / Table

Type

VG	Square, straight, toothed

Part Number	Module	Length l Nominal size	Actual size	b Tooth width	h₁	h₂	s	Max. force F_S acting on a tooth

7822-1-350-VG-GR	1	13.78	13.86	0.59	0.59	0.55	0.31	83.63 lbf (372 N)
7822-1.5-250-VG-GR	1.5	9.84	9.84	0.67	0.67	0.61	0.31	142 lbf (633 N)
7822-1.5-500-VG-GR	1.5	19.69	22.24	0.67	0.67	0.61	0.31	142 lbf (633 N)
7822-2-250-VG-GR	2	9.84	9.88	0.79	0.79	0.71	0.39	223 lbf (993 N)
7822-2-500-VG-GR	2	19.69	22.24	0.79	0.79	0.71	0.39	223 lbf (993 N)
7822-3-250-VG-GR	3	9.84	10.00	1.18	1.18	1.06	0.59	502 lbf (2234 N)
7822-3-500-VG-GR	3	19.69	19.69	1.18	1.18	1.06	0.59	502 lbf (2234 N)

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Metric

Dimensions in: Inch (change to Metric)

Module	Length l Nominal size	Actual size	b Tooth width	h₁	h₂	s	Max. force F_S acting on a tooth

1	13.78	13.86	0.59	0.59	0.55	0.31	83.63 lbf (372 N)
1.5	9.84	9.84	0.67	0.67	0.61	0.31	142 lbf (633 N)
1.5	19.69	22.24	0.67	0.67	0.61	0.31	142 lbf (633 N)
2	9.84	9.88	0.79	0.79	0.71	0.39	223 lbf (993 N)
2	19.69	22.24	0.79	0.79	0.71	0.39	223 lbf (993 N)
3	9.84	10.00	1.18	1.18	1.06	0.59	502 lbf (2234 N)
3	19.69	19.69	1.18	1.18	1.06	0.59	502 lbf (2234 N)