Metric Bronze Wormwheels 
in PB1/PB2 or equivalent
0.5 MOD to 2 MOD 

20° pressure angle Bore tolerance H7 Single(1R) & Double(2R) Start Right Hand Intermediate sizes & Special Wormwheels to drawing All dimensions in mm. Standard tolerances, unless otherwise stated ±0.25 mm.	
	Type A	Type B

Code	Pitch Module	No. Teeth	dp	de	Boss Ø D	M	Bore	F	A	Code	Type
BWW05/20/1R	0.5	20	10	11.4	8	5	3	3	8	8.5	A
BWW05/25/1R		25	12.5	14	10	5	4	3	8	9.75	A
BWW05/30/1R		30	15	16.5	10	5	4	3	8	11	A
BWW05/40/1R		40	20	21.5	10	5	4	3	8	13.5	A
BWW05/50/1R		50	25	26.5	10	5	4	3	8	16	A
BWW05/60/1R		60	30	31.5	15	5	4	3	8	18.5	A
BWW05/75/1R		75	37.5	39	15	5	4	3	8	22.25	A
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