F4B 104S-RMSquare flanged ball bearing unit with cast iron housing, narrow inner ring and set screw locking, North American standards

F4B 104S-RMSquare flanged ball bearing unit with cast iron housing, narrow inner ring and set screw locking, North American standards

SKU: F4B 104S-RMSquare flanged ball bearing unit with cast iron housing, narrow inner ring and set screw locking, North American standards

These square flanged ball bearing units consists of an insert bearing mounted in a cast iron housing that can be bolted to a machine wall or frame. The units have set screw locking which makes them suitable for applications where the direction of rotation is constant or alternating, and they can be relubricated through a grease fitting in the housing. These units are especially suitable for bearing arrangements that operate under tough conditions with relatively heavy loads.

ID:115945

Technical Data
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Compliance with standard	North American standard
Purpose specific	For material handling applications
Material, housing	Cast iron
Sealing, bearing	Seal on both sides
Sealing type, bearing	Contact, standard
Sealing, unit	Optional end cover
Coating	Without

Dimensions

d	31.75 mm	Bore diameter
d₁	≈ 39.7 mm	Outer diameter of inner ring
A	34.3 mm	Overall width
A₁	15.9 mm	Flange width
A₅	22.5 mm	Standout of end cover
B	30.2 mm	Width of inner ring
B₁	30.2 mm	Overall bearing width
B₄	5 mm	Distance from locking device side face to thread centre
D_b1	79.4 mm	Top external diameter
J	82.6 mm	Distance between attachment bolts
L	108 mm	Overall length
N	12.7 mm	Diameter of attachment bolt hole
s₁	21 mm	Distance from locking device side face to raceway centre
T	41.9 mm	Overall unit width

Threaded hole
R_G	1/8-27 NPT	Housing thread for grease fitting
R₁	22 mm	Axial position of the housing thread

Grease fitting
D_N	6.579 mm	Diameter of head sphere of grease fitting
SW_N	11.113 mm	Hexagonal key size for the grease fitting
G_N	1/8-27 NPT	Thread of grease fitting

Calculation data

Basic dynamic load rating	C	19.5 kN
Basic static load rating	C₀	11.2 kN
Fatigue load limit	P_u	0.475 kN
Limiting speed		6 300 r/min
		Limiting speed with shaft tolerance h6

Mass

Mass bearing unit

1.2 kg

Mounting information

Set screw	G₂	1/4-28 UNF
Hexagonal key size for set screw		3.175 mm
Recommended tightening torque for set screw		4 N·m
Recommended diameter for attachment bolts, mm	G	10 mm
Recommended diameter for attachment bolts, inch	G	0.4375 in

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