GN 321.5-DSafety Handwheels

With revolving steel handle

Aluminum, with Needle Bearing

Technical datasheet

GN 321.5-D

With revolving steel handle

GN 321.5-A

Without handle

GN 321.5-D

Reset

Catalogue	d₁	d₂ H7 Bore with keyway	d₃	d₄ max.	l₁	l₂	l₃	l₄ ≈	r	w min.	Ø Handle GN 598	Coupling GN 000.5 Size

GN 321.5-125-K12-D-DR	125	K 12	29	17	42	18	12	67.5	54	4	23	1
GN 321.5-140-K12-D-DR	140	K 12	29	17	42	19	12	67.5	61	4	23	1
GN 321.5-140-K14-D-DR	140	K 14	33	21	48	19	14	67.5	61	4	23	2
GN 321.5-160-K14-D-DR	160	K 14	33	21	48	20	14	82.5	71	4	26	2
GN 321.5-200-K18-D-DR	200	K 18	39	26	50	24	13	82.5	89	4	26	3
GN 321.5-250-K22-D-DR	250	K 22	46	30	54	28	13	92.5	113	4	28	4

Types

Type A: Without handle
Type D: With revolving steel handle

Coding

Version ZI: Engage by pulling
Version DR: Engage by pushing

Wheel body

Aluminum

Hub machined

Wheel rim

Turned

Radial and axial runout < 0,4

Wheel rim high-polished

Unmachined body matte shot-blasted

Coupling attachment GN 000.5 with needle bearing

Steel

Hardened

Bearing surfaces ground

Revolving handle GN 598

Steel

Powder coated

Black, textured finish

Spindle steel

Zinc plated, blue passivated

While not actuated, safety handwheels GN 321.5 do not transmit the rotational movement of the shaft to the wheel body. To drive and adjust, the clutch is engaged by pushing or pulling, depending on the code. When released, the handwheel is disengaged by spring force.

Type D ergonomically transmits fast adjustment movements via the revolving cylindrical handle. Precise adjustments are made via the wheel rim.