• Rex MBR321540 Spherical Roller Bearings ZBR3000 Flanged Cartridge Block. Contact Rexnord for more details.

Dimensions

Pilot Diameter (in)	6.375 in
Overall Width (in)	8.75 in
Foot Height (in)	0.75 in
Bolt Size (in)	5/8 in
Bore Diameter (in)	2.9375 in
Overall Length (in)	8.75 in
Overall Height (in)	4.2 in
Housing Height (in)	3.13 in
Mounting Plate to Collar Face (in)	2.2 in
Locking Collar Outside Diameter (in)	4.06 in
Pilot Depth (in)	1.25 in
Housing Outside Diameter (in)	8.75 in
Inner Ring Outside Diameter (in)	3.37 in
Mounting Surface to End of Housing (in)	2 in
Bolt Circle (in)	7.5 in
Housing Cast Face to Outermost Bearing Face (in)	1.02 in
Length Through Bore (in)	4.2 in
Bolt Spacing (in)	5.297 in

Technical Specifications

Housing Color	Black
Series	Flanged Cartridge Blocks
Housing Material	Cast Iron
Housing Construction	Solid
Radial Dynamic Load Capacity (lb)	57,750 lb
Radial Clearance	C3 STANDARD
Shaft Locking Type	Eccentric Collar
Seal Type	Heavy Contact Seal
Static Load Rating (lb)	71,500 lb
Housing Type	Flange, Cartridge
Housing Style	Flange Block
End Cap	DTC91
Rolling Element	Spherical Roller
Cage Material	Engineered Polymer
Product	ZBR3000
Fixed/Expansion	Fixed
Misalignment Type	Dynamic
Setscrew Torque (in-lbs)	460 in/lbs
Available Seal Type	K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip
Microlock Kit	ML3
Seal Kit	MS9
Ability to Relubricate	Yes
Maximum Speed (RPM)	1700 rpm
Bolt Hole Shape	Round Hole
Lube Fill Percent	0% FILL
Vibration Frequency Fundamental Train	0.0072 cps
Vibration Frequency Roller Spin	0.0591 cps
Primary Seal	BUNA SPRING LOADED LIP SEAL
Locking Device Kit	SC3215
Vibration Frequency Inner Ring Defect	0.1701 cps
Lubricant	PRESERVATIVE ONLY - NO GREASE
Max Operating Temperature (C)	107 °C
Vibration Frequency Outer Ring Defect	0.1299 cps
Size Code	9
Housing Coating	POWDER COATED
Grease Fitting Thread Size	1/8 NPT
Misalignment Capability	±2.0° Misalignment - Dynamic
Insert	3215U
Max Operating Temperature (F)	225 °F

General Specifications

UPC	782935280510
Weight	22.30 LB
HTC	8483204080
Country of Origin	Mexico