USB 2.I / 2.II / 2.III Disc Brakes Specification & Dimension Sheet DWG NO: S-10475 / S-10493 /                S-10494 ISSUE: 09-21-95 BY: Rev. 3 BV / 2 BV / 2
For All Models D:1 Theoretical friction diameter    D:3 Maximum possible coupling or hub diameter Lifting clearance per side: 1 mm (target value)    A1: Area of one brake lining (cm²)     µ: Coefficient of friction
USB 2 - I

B	B2	C1	C2	D4	H1	H2	H3	J	J1	K	L	L1	L2	L3	N1	P1	Q	R2	S	T	U	X	Y	Z
114	70	180	80	18	115	160	190	160	150	15	710	395	230	175	80	165	20	120	20	300	300	128	170	68
														Thruster Type
														Ed 23/5		Ed 30/5		Ed 50/6		Ed 80/6
														Max. Braking Torque M in Nm at µ = 0.4
D2	B1	D1	D3	E	R1		V	W					A1
315	30	235	115	118	57.5		100	160					99	270		380		645		1030
355	30	275	155	138	77.5		100	160					99	320		440		670		1150
400	30	320	200	160	100		100	160					99	406		520		790		1350
450	30	370	250	185	125		100	160					99	460		610		910		1560
500	30	420	300	210	150		100	160					99	530		690		1150		1840
560	30	480	360	240	180		100	160					99	600		790		1320		2100
630	30	550	430	275	215		100	160					99	690		900		1500		2420
710	30	630	510	315	255		100	160					99	790		1040		1700		2700
Weight (without thruster) appr. 80 kg. (176 lbs.)														Dimensions depending on thruster
													A	440		440		460		460
													F	125		125		165		165
													G	160		160		195		195
													M	380		380		410		410

USB 2 - II
B	B2	C1	C2	D4	H1	H2	H3	J	J1	K	L	L1	L2	L3	N1	P1	Q	R2	S	T	U	X	Y	Z
135	90	130	130	22	145	185	210	165	150	15	870	495	280	220	90	205	20	140	20	370	375	170	390	73
														Thruster Type
														Ed 30/5		Ed 50/6		Ed 80/6		Ed 121/6		Ed 201/6
														Max. Braking Torque M in Nm at µ = 0.4
D2	B1	D1	D3	E	R1		V	W					A1
450	30	350	210	175	105		150	185					200	570		920		1625		2700		3870
500	30	400	260	200	130		150	185					200	660		1060		1855		3085		4400
560	30	460	320	230	160		150	185					200	760		1270		2135		3550		5050
630	30	530	390	265	195		150	185					200	870		1450		2330		4090		5850
710	30	610	470	305	235		150	185					200	1000		1680		2700		4310		6750
800	30	700	560	350	280		150	185					200	1160		1880		3050		4600		7600
900	30	800	660	400	330		150	185					200	1300		2200		3475		5200		8800
1000	30	900	760	450	380		150	185					200	1450		2500		3900		5850		9900
Weight (without thruster) appr. 135 kg. (297 lbs.)														Dimensions depending on thruster
													A	485		510		510		525		525
													F	125		165		165		155		155
													G	160		195		195		240		240
													M	430		470		470		460		460
USB 2 - III
B	B2	C1	C2	D4	H1	H2	H3	J	J1	K	L	L1	L2	L3	N1	P1	Q	R2	S	T	U	X	Y	Z
182	130	180	180	27	185	150	275	220	170	20	1130	600	370	300	110	245	30	160	45	440	450	215	335	70
														Thruster Type
														Ed 50/6		Ed 80/6		Ed 121/6		Ed 201/6		Ed 301/6
														Max. Braking Torque M in Nm at µ = 0.4
D2	B1	D1	D3	E	R1		V	W					A1
560	30	430	220	215	135		225	150					330	1210		1930		3595		4980		7280
630	30	500	290	250	170		225	150					330	1410		2240		4165		5780		8435
710	30	580	370	290	210		225	150					330	1630		2600		4820		6690		9760
800	30	670	460	335	255		225	150					330	1880		3000		5200		7720		11250
900	30	770	560	385	305		225	150					330	2200		3500		5500		8790		13190
1000	30	870	660	435	355		225	150					330	2440		3900		6800		9950		14550
1100	30	970	760	485	405		225	150					330	2715		4300		7000		10800		16000
1200	30	1070	860	535	455		225	150					330	2980		4750		7200		11800		17800
1250	30	1120	910	560	480		225	150					339	3125		5000		7500		12500		18750
Weight (without thruster) appr. 220 kg. (484 lbs.)														Dimensions depending on thruster
													A	535		535		555		555		555
													F	165		165		155		155		155
													G	195		195		240		240		240
													M	530		530		520		520		520

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