• Rex ZMC5408Y78 Spherical Roller Bearings ZMC5000 Cartridge Block. Contact Rexnord for more details.

Dimensions

Outside Diameter (in)	8.75 in
Overall Length (in)	8.75 in
Housing Width (in)	4.25 in
Bore Diameter (in)	4.5000 in
Overall Height (in)	8.75 in
Slot Width (in)	0.78 in
Slot Length (in)	1.5 in
Locking Collar Outside Diameter (in)	6.19 in
Slot Depth (in)	0.31 in
Length Through Bore (in)	6.25 in
Centerline to Outermost Bearing Face (in)	3.19 in
Housing Cast Face to Outermost Bearing Face (in)	1.06 in
Inner Ring Outside Diameter (in)	5.032 in

Technical Specifications

Seal Type	Clearance Seal
Radial Clearance	C3 STANDARD
Static Load Rating (lb)	159,300 lb
Cage Material	Steel
Housing Construction	Solid
Housing Material	Cast Iron
Radial Dynamic Load Capacity (lb)	149,500 lb
Product	ZMC5000
Rolling Element	Spherical
Housing Style	Cartridge Block
Shaft Locking Type	Double Set Collar
Fixed/Expansion	Fixed
Series	Cartridge Blocks
Microlock Kit	ML4
Setscrew Torque (in-lbs)	1350 in/lbs
Available Seal Type	M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip
Maximum Speed (RPM)	1850 rpm
Seal Kit	ZS12Y
Ability to Relubricate	Yes
Insert	5408YUR78
Vibration Frequency Outer Ring Defect	0.1433 cps
Size Code	12
Vibration Frequency Inner Ring Defect	0.1901 cps
Locking Device Kit	SC12Y QTY 2
Vibration Frequency Roller Spin	0.0568 cps
Vibration Frequency Fundamental Train	0.0072 cps
Lubricant	EXXON RONEX MP STD
Misalignment Capability	±2.0° Misalignment - Dynamic
Max Operating Temperature (F)	225 °F
Grease Fitting Thread Size	1/4 NPT
Max Operating Temperature (C)	107 °C

General Specifications

UPC	782935103987
Weight	46.00 LB