Solid Disk Handwheels EN 521.3

Original design

code: VDS+IR

Keyways WN 6885 / DIN 6885-1 ISO Fundamental Tolerances Plastic Characteristics

Product description

Plastic solid disk handwheels EN 521.3 are designed for applications where it is necessary for the handle to return back to starting position after operation for safety reasons or lack of space.

These handwheels have the distinguishing features where the handle and the retracting mechanism are completely encased within the rim of the wheel.
In the operating position, the handle is secured by a taper detent. To fold it down, it is drawn out from the tapered recess. A compression spring secures the handle in either position.

Specification

Body
Plastic, Polypropylene (PP)

High strength reinforced, shock-resistant
Black, matte finish

Hub bushing
Steel, blackened finish

Cover

Plastic, black for d₁ = 80 mm
Plastic, light gray for d₁ ≥ 100 mm

Revolving retractable handle
Plastic, Polyamide (PA)

Black, matte finish
Retractable mechanism / Spindle
Steel, blackened finish

Operating temperature
+32 °F to +176 °F (0 °C to +80 °C)

RoHS

Accessory

GN 184 Countersunk Washers (for Axial Fixing)

On request

Other modifications such as special inch and
metric bores, keyways, set screw holes, etc.
With safety retractable handle
Cover in other colors

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Part Number	d₁	d₂ H7 Bore	b	d₃	d₄	d₅	d₆	d₇	h	l₁	l₂	l₃	r	Ø Handle

521.3-80-B5/16-R	3.15	5/16 H7	0.79	0.71	0.63	0.98	0.53	0.65	0.16	0.67	1.50	1.77	1.10	0.61
521.3-100-B3/8-R	3.94	3/8 H7	0.94	0.87	0.79	1.18	0.98	1.06	0.35	0.87	1.34	1.77	1.54	0.61
521.3-125-B3/8-R	4.92	3/8 H7	1.10	1.02	0.94	1.38	1.10	1.22	0.43	1.06	1.56	2.36	1.93	0.71
521.3-150-B1/2-R	5.91	1/2 H7	1.26	1.02	0.94	1.50	1.18	1.34	0.39	1.18	1.73	2.56	2.28	0.87
521.3-175-B1/2-R	6.89	1/2 H7	1.42	1.38	1.30	1.73	1.38	1.54	0.63	1.10	1.93	3.15	2.76	0.94
521.3-200-B5/8-R	7.87	5/8 H7	1.54	1.57	1.50	1.97	1.57	1.73	0.51	1.42	2.09	3.54	3.19	0.98
521.3-250-B5/8-R	9.84	5/8 H7	1.69	1.57	1.50	2.24	1.89	1.97	0.75	1.42	2.36	3.54	4.09	0.98
521.3-80-B8-R	3.15	8 H7	0.79	0.71	0.63	0.98	0.53	0.65	0.16	0.67	1.50	1.77	1.10	0.61
521.3-80-B10-R	3.15	10 H7	0.79	0.71	0.63	0.98	0.53	0.65	0.16	0.67	1.50	1.77	1.10	0.61
521.3-100-B10-R	3.94	10 H7	0.94	0.87	0.79	1.18	0.98	1.06	0.35	0.87	1.34	1.77	1.54	0.61
521.3-100-B12-R	3.94	12 H7	0.94	0.87	0.79	1.18	0.98	1.06	0.35	0.87	1.34	1.77	1.54	0.61
521.3-125-B12-R	4.92	12 H7	1.10	1.02	0.94	1.38	1.10	1.22	0.43	1.06	1.56	2.36	1.93	0.71
521.3-125-B14-R	4.92	14 H7	1.10	1.02	0.94	1.38	1.10	1.22	0.43	1.06	1.56	2.36	1.93	0.71
521.3-150-B14-R	5.91	14 H7	1.26	1.02	0.94	1.50	1.18	1.34	0.39	1.18	1.73	2.56	2.28	0.87
521.3-150-B16-R	5.91	16 H7	1.26	1.02	0.94	1.50	1.18	1.34	0.39	1.18	1.73	2.56	2.28	0.87
521.3-175-B16-R	6.89	16 H7	1.42	1.38	1.30	1.73	1.38	1.54	0.63	1.10	1.93	3.15	2.76	0.94
521.3-175-B20-R	6.89	20 H7	1.42	1.38	1.30	1.73	1.38	1.54	0.63	1.10	1.93	3.15	2.76	0.94
521.3-200-B20-R	7.87	20 H7	1.54	1.57	1.50	1.97	1.57	1.73	0.51	1.42	2.09	3.54	3.19	0.98
521.3-200-B24-R	7.87	24 H7	1.54	1.57	1.50	1.97	1.57	1.73	0.51	1.42	2.09	3.54	3.19	0.98
521.3-250-B20-R	9.84	20 H7	1.69	1.57	1.50	2.24	1.89	1.97	0.75	1.42	2.36	3.54	4.09	0.98
521.3-300-B20-R	11.81	20 H7	1.81	1.57	1.44	2.83	2.56	2.70	0.71	1.73	2.60	3.54	4.88	0.98

d₁	d₂ H7 Bore	b	d₃	d₄	d₅	d₆	d₇	h	l₁	l₂	l₃	r	Ø Handle

3.15	5/16	0.79	0.71	0.63	0.98	0.53	0.65	0.16	0.67	1.50	1.77	1.10	0.61
3.94	3/8	0.94	0.87	0.79	1.18	0.98	1.06	0.35	0.87	1.34	1.77	1.54	0.61
4.92	3/8	1.10	1.02	0.94	1.38	1.10	1.22	0.43	1.06	1.56	2.36	1.93	0.71
5.91	1/2	1.26	1.02	0.94	1.50	1.18	1.34	0.39	1.18	1.73	2.56	2.28	0.87
6.89	1/2	1.42	1.38	1.30	1.73	1.38	1.54	0.63	1.10	1.93	3.15	2.76	0.94
7.87	5/8	1.54	1.57	1.50	1.97	1.57	1.73	0.51	1.42	2.09	3.54	3.19	0.98
9.84	5/8	1.69	1.57	1.50	2.24	1.89	1.97	0.75	1.42	2.36	3.54	4.09	0.98

d₁	d₂ H7 Bore	b	d₃	d₄	d₅	d₆	d₇	h	l₁	l₂	l₃	r	Ø Handle

3.15	8	10	0.79	0.71	0.63	0.98	0.53	0.65	0.16	0.67	1.50	1.77	1.10	0.61
3.94	10	12	0.94	0.87	0.79	1.18	0.98	1.06	0.35	0.87	1.34	1.77	1.54	0.61
4.92	12	14	1.10	1.02	0.94	1.38	1.10	1.22	0.43	1.06	1.56	2.36	1.93	0.71
5.91	14	16	1.26	1.02	0.94	1.50	1.18	1.34	0.39	1.18	1.73	2.56	2.28	0.87
6.89	16	20	1.42	1.38	1.30	1.73	1.38	1.54	0.63	1.10	1.93	3.15	2.76	0.94
7.87	20	24	1.54	1.57	1.50	1.97	1.57	1.73	0.51	1.42	2.09	3.54	3.19	0.98
9.84	20	-	1.69	1.57	1.50	2.24	1.89	1.97	0.75	1.42	2.36	3.54	4.09	0.98
11.81	20	-	1.81	1.57	1.44	2.83	2.56	2.70	0.71	1.73	2.60	3.54	4.88	0.98