SAF 056 KAX9.15/16

Dimensions

Shaft

da	252.413 mm	Shaft diameter

Bearing seat

Da	420 mm	Diameter of bearing seat
	G7	Tolerance class of bearing seat diameter
Ca	147.803 mm	Width of bearing seat
H1	250.825 mm	Centre height

Outside dimensions

A1	228.6 mm	Foot width
A2	315.119 mm	Overall width
H	495.3 mm	Overall height
H2	101.6 mm	Foot height
J	min.666.75 mm	Distance between attachment bolts
J	max.749.3 mm	Distance between attachment bolts
J1	139.7 mm	Distance between attachment bolts, axial
L	869.95 mm	Overall length
N1	41.275 mm	Width of attachment bolt hole

Threaded holes

R1	163.513 mm	Distance of drain plug from centre
R2	50.8 mm	Height of drain plug position
RG	1-11.5 NPT	Thread of drain hole
PG	1/4-18 NPT	Thread of grease fitting in cap

Recommended safe loads

P60°	449 kN	Safe load at 60° load angle
P90°	271 kN	Safe load at 90° load angle
P120°	169 kN	Safe load at 120° load angle
P150°	151 kN	Safe load at 150° load angle
P180°	185 kN	Safe load at 180° load angle
Pa	120 kN	Safe load, axial

Materials

Housing material	Cast iron
Corrosion protection	Paint - in accordance with ISO 12944-2, corrosivity category C2

Mounting information

Cap bolt		1 1/2-6 UNC x 8-1/2
Number of cap bolts		4
SAE grade of cap bolt		5
Recommended tightening torque for cap bolts		1 016.863 N·m
Recommended diameter for attachment bolts	G	38.1 mm
Eye bolt		1/2-13 UNC
Number of eyebolts		2
Initial grease fill, 20%		5 819.59 g
Initial grease fill, 40%		9 344.003 g

Features & Design
The SAF 056 KAX9.15/16 split plummer block housing is engineered for heavy-duty industrial applications requiring reliable shaft support. Its two-piece cast iron construction simplifies installation and maintenance, eliminating the need to disassemble adjacent machinery during bearing replacement. The housing features a robust design with standardized bolt holes for secure mounting, along with precision-machined surfaces to ensure proper alignment. A removable cap and base design enhances accessibility, while integrated sealing grooves accommodate standard lip seals or labyrinth seals for contamination protection.

Key Advantages
This housing stands out for its versatility and cost-efficiency. Compatible with spherical roller bearings (ISO 113:1999 standard), it supports high radial loads and moderate misalignment, making it ideal for harsh environments like mining or bulk material handling. The absence of a pre-installed bearing allows users to select bearings tailored to specific load, speed, or temperature requirements. Its corrosion-resistant cast iron body ensures longevity in humid or chemically aggressive settings, and the split design reduces downtime during repairs by up to 40% compared to solid housings.

Typical Applications
Widely used in conveyor systems, crushers, and industrial fans, the SAF 056 KAX9.15/16 suits industries prioritizing minimal maintenance and operational continuity. It's favored in cement plants for rotary kiln drives, in wastewater treatment facilities for agitator shafts, and in agricultural machinery requiring frequent bearing inspections. The housing's IP65-rated sealing options make it adaptable to food processing lines where washdowns are routine. Engineers often pair it with customized bearings for specialized equipment like paper mill rollers or marine propulsion systems, leveraging its modularity for streamlined inventory management.

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