Accessories

Bell housing

Our bell housings align motor and pump precisely, are easy to mount and slotted for easy access to the coupling set screw. The cast aluminium has high strength. CAT PUMPS also offers bell housings to fit a variety of hydraulic motors.

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Mounting components: bell housing, mounting kit and coupling

For each pump series and motor frame size the table lists the bell housing, the mounting kit and the coupling. The mounting kit contains screws, washers and spring washers (small). As of March 2025.

Pump series	Motor frame size	Flange Ø	Bell housing	Mounting kit	Coupling
3CP	90	160	701724	709660	709642 24AL Ø16,5 / Ø24
3CP	100–112	160	701724	709660	704348 24AL Ø16,5 / Ø28
3FR	90	160	30738	702557	709642 24AL Ø16,5 / Ø24
3FR	100–112	160	30738	702557	704348 24AL Ø16,5 / Ø28
5CP	90	160	701730	702573	709658 24AL Ø20 / Ø24
	100–112	160	701730	702573	709641 24AL Ø20 / Ø28
	132	200	704726R1	704730R1	709616 28AL Ø20 / Ø38
	160	350	76IEC180.5CPD	707062	707061 38AL Ø20 / Ø42
5FR (300–357) 5FR (323, 390)	90	160	30715	702557	709658 24AL Ø20 / Ø24
	100–112	160	30715	702557	709641 24AL Ø20 / Ø28
	132	200	709609R1	709623R1	709616 28AL Ø20 / Ø38
5FR (45)	132	200	709609R1/45	704730R1	709616 28AL Ø20 / Ø38
7CP (7CP6110, 7CP6111, 7CP6170, 7CP6171)	100–112	200	703664R1	709619R1	709618 38GG Ø24 / Ø28
	132	200	703664R1	709619R1	703666 38DT Ø24 / Ø38
	160	350	702580	703604	709620 38GG Ø24 / Ø42
7PFR (530, 550, 53, 55, 56, 57, 58, 59, 60)	132	200	704717R1	709621R1 Bearing cover: 709630	703666 38DT Ø24 / Ø38
7PFR (530, 550, 53, 55, 56, 57, 58, 59, 60)	160	350	704709	704716 Bearing cover: 709630	709620 38GG Ø24 / Ø42
7/8FR (700, 781)	132	200	704717R1	709625R1 Adapter flange: 709624 Bearing cover: 709630	703666 38DT Ø24 / Ø38
7/8FR (700, 781)	160	350	704709	704716 Bearing cover: 709630	709620 38GG Ø24 / Ø42
15FR (640, 650, 660, 1050, 1051, 1057, 1531, 1541; from 03/2020: 1530, 1540E, 1560, 1570, 1580)	132	200	703931	709619R1	709696 38AL Ø30 / Ø38
	160	350	76IEC180.15CPD	709699	709697 42SI Ø30 / Ø42
	180	350	76IEC180.15CPD	709699	703901 48SI Ø30 / Ø48

Dimensions of the bell housings

The list below gives four dimensions for each bell housing: D is the flange diameter, L the length, LKP the bolt circle on the pump side and LKM the bolt circle on the motor side.

Dimensional drawing of a bell housing with the dimensions D, L, LKP and LKM

Bell housing: all versions

Choose what you are looking for – the list shows the matching versions. Use the plus to add an item to your request list.

Part no.	Pump	Motor	Flange Ø D	Length L	LKP	LKM
701724	3CP	90–112	160 mm	115 mm	76 mm	130 mm
30738	3 FR (230–277)	90–112	160 mm	115 mm	64 mm	130 mm
701730	5CP	100–112	160 mm	115 mm	78 mm	130 mm
704726R1	5CP	132	200 mm	140 mm	78 mm	165 mm
30715	5 FR (300–357, 323, 390)	100–112	160 mm	115 mm	75 mm	130 mm
709609R1	5 FR (300–357, 323, 390)	132	200 mm	140 mm	75 mm	165 mm
709609R1/45	5 FR (45)	132	200 mm	140 mm	75 mm	165 mm
703664R1	7CP	100–132	200 mm	140 mm	98 mm	165 mm
702580	7CP	160	350 mm	204 mm	98 mm	300 mm
704717R1	7 FR (53–550), 7/8 FR (700, 781)	132	200 mm	140 mm	96 mm	165 mm
704709	7 FR (53–550), 7/8 FR (700, 781)	160	350 mm	204 mm	96 mm	300 mm
703931	15 FR	132	200 mm	173 mm	105 mm	162 mm
76IEC180.15CPD	15 FR	160–180	350 mm	–	–	300 mm

D = flange diameter, L = length, LKP = bolt circle on the pump side, LKM = bolt circle on the motor side.
The table “Mounting components” above lists the coupling and mounting kit for each bell housing.

Mounting components: bell housing, mounting kit and coupling

Dimensions of the bell housings

Bell housing: all versions

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