• Rexnord ZB221578 Rex Spherical Roller Bearings ZB2000 Flange Block. Contact Rexnord for more details.

Dimensions

Overall Width (in)	9.5 in
Bolt Size (in)	3/4 in
Overall Length (in)	9.5 in
Overall Height (in)	4.09 in
Bore Diameter (in)	2.9375 in
Foot Height (in)	0.88 in
Housing Outside Diameter (in)	9.5 in
Locking Collar Outside Diameter (in)	4.06 in
Standoff Distance (in)	0.09 in
Length Through Bore (in)	4 in
Bolt Circle (in)	7.875 in
Inner Ring Outside Diameter (in)	3.37 in
Bolt Spacing (in)	5.56 in
Housing Cast Face to Outermost Bearing Face (in)	0.88 in

Technical Specifications

Misalignment Type	Dynamic
Radial Clearance	C3 STANDARD
Housing Construction	Solid
Cage Material	Steel
Series	Flange Blocks
Radial Dynamic Load Capacity (lb)	57,750 lb
Seal Type	Clearance Seal
Product	ZB2000
Fixed/Expansion	Fixed
Housing Type	Flange, Four Bolt
Rolling Element	Spherical Roller
Housing Material	Cast Iron
Housing Style	Flange Block
Shaft Locking Type	Single Set Collar
Static Load Rating (lb)	71,500 lb
End Cap	DTC9
Seal Kit	ZS9
Setscrew Torque (in-lbs)	680 in/lbs
Microlock Kit	ML3
Ability to Relubricate	Yes
Maximum Speed (RPM)	2800 rpm
Locking Device Kit	SC9
Vibration Frequency Fundamental Train	0.0072 cps
Housing Coating	POWDER COATED
Max Operating Temperature (C)	107 °C
Size Code	9
Vibration Frequency Roller Spin	0.0591 cps
Primary Seal	STEEL CLEARANCE SEAL
Insert	2215U78
Lubricant	EXXON RONEX MP STD
Vibration Frequency Outer Ring Defect	0.1299 cps
Vibration Frequency Inner Ring Defect	0.1701 cps
Misalignment Capability	±2.0° Misalignment - Dynamic
Max Operating Temperature (F)	225 °F
Grease Fitting Thread Size	1/8 NPT

General Specifications

UPC	782934892721
Weight	25.60 LB
Country of Origin	Mexico