FBB

Differential & Phasing Drive - FBB

FBB gear sets allow easy and direct phasing of rotating elements and are ideally suited for web presses and other machines requiring constant monitoring and adjustment while they are in motion. FBB is essentially two FB pancake gear sets mounted back to back with dynamic splines connected. The FBB provides a 1:1 through ratio from a primary drive source to secondary elements of a machine with optional speed or position adjustment.

For dynamic registration of rotating elements
A 1:1 differential with high-ratio trim adjustment
Ideal differential for roll registration or angular shaft phasing
Compact, low-backlash design for end-of-roll mounting

Rating Table

		Maximum Input RPM		Rated Torque @1750 RPM		Maximum Output Torque
SIZE	RATIO	Oil	Grease	lb-in	Nm	lb-in	Nm
20	80	6000	3500	246	28	250	28
	100			246	28	300	34
	120			246	28	350	40
	160			246	28	390	44
25	80	5000	3500	406	46	425	48
	100			406	46	600	68
	120			406	46	700	79
	160			406	46	780	88
32	80	4500	3500	810	92	950	107
	100			810	92	1200	136
	120			810	92	1400	158
	160			810	92	1550	175
40	80	4000	3000	1705	193	1700	192
	100			1705	193	2400	271
	120			1705	193	2700	305
	160			1705	193	3100	350
50	80	3500	2500	3180	359	3100	350
	100			3180	359	4200	475
	120			3180	359	5200	588
	160			3180	359	5800	655

FBB	No Load Starting Torque	No Load Starting Torque	Input Inertia	Input Inertia
FBB	in-oz	Ncm	lb in2	kgcm2
20	4.5	3.2	0.05	0.14
25	6	4.2	0.12	0.36
32	8	5.7	0.45	1.32
40	27	19.1	1.17	3.42
50	50	35.3	3.39	9.91

Product Drawing

Symbol \ Size	20	25	32	40	50
ø A	70	85	110	134	170
B	26.5	34.8	42	56.5

Dimensions

FBB GEAR UNIT
	20	25	32	40	50
	70	85	110	135	170
L1	26.5	34.8	42	56.5	-
L2	6	8	10	13	16
N1	6	6	6	6	6
H1	M4x0.7	M5x0.8	M6x1.0	M8x1.25	M10x1.5
PC1	60	75	100	120	150
WEIGHT lb/kgf	1.5/0.7	2.70/1.23	4.70/2.14	9.00/4.09	15.30/6.9
Dimensions in mm