SNL209 SKF Split Plummer Block Housing for 45mm Shaft
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The SKF SNL209 is a cast iron split plummer block housing designed to support compatible self-aligning ball bearings, spherical roller bearings and CARB toroidal roller bearings. Its rigid construction provides bearing support for industrial machinery, while the removable housing cap simplifies installation, inspection and maintenance.
The housing features a 85 mm bearing seat diameter, a 30 mm bearing seat width and a 60 mm centre height. Two elongated mounting holes, positioned at 170 mm centres, allow adjustment when securing the housing to its supporting surface.
Designed for grease lubrication, the housing can be configured for through-shaft or shaft-end installations using suitable sealing accessories and an end cover. V-ring, labyrinth and heavy-duty taconite seal options allow the sealing arrangement to be selected for the operating environment.
The 85 mm dimension refers to the outside diameter of the bearing accommodated by the housing. The compatible bearings listed below have a 45 mm bore; the standard TSN 209 seal arrangements require a 55 mm shaft diameter at the seals.
Technical specifications
Brand: SKF
Product designation: SNL 209
Housing type: Split plummer block housing
Housing construction: Two-piece, with removable cap
Housing material: Cast iron
Bearing bore / shaft seat diameter: 45 mm
Shaft diameter at the listed seals: 55 mm
Bearing seat diameter, Da: 85 mm
Bearing seat diameter tolerance: G7
Bearing seat width, Ca: 30 mm
Centre height, H1: 60 mm
Overall length, L: 205 mm
Overall height, H: 109 mm
Housing width, A: 85 mm
Foot width, A1: 60 mm
Foot height, H2: 25 mm
Attachment bolt centres, J: 170 mm
Number of attachment bolt holes: 2
Attachment bolt hole length, N: 20 mm
Attachment bolt hole width, N1: 15 mm
Recommended attachment bolt size: M12
Lubrication: Grease
Housing seals: Supplied without seals
Mounting arrangements: Through shaft or shaft end
Approximate net weight: 2.94 kg
Compatible bearings and locating rings
SKF 1209 ETN9 self-aligning ball bearing: Two FRB 5.5/85 locating rings
SKF 2209 ETN9 self-aligning ball bearing: Two FRB 3.5/85 locating rings
SKF 22209 E spherical roller bearing: Two FRB 3.5/85 locating rings
SKF BS2-2209-2CS sealed spherical roller bearing: Two FRB 1/85 locating rings
SKF C 2209 TN9 CARB toroidal roller bearing: Two FRB 3.5/85 locating rings
These catalogue combinations locate the bearing outer ring axially. A non-locating self-aligning ball or spherical roller bearing normally requires freedom to move in the housing; CARB bearings accommodate axial displacement internally and require axial location of the outer ring. Some sealed bearing arrangements require modified shaft shoulders; check the selected bearing dimensions before assembly.
Compatible sealing accessories
V-ring seal option: SKF TSN 209 A
Labyrinth seal option: SKF TSN 209 S
Heavy-duty taconite seal option: SKF TSN 209 ND
Shaft diameter at the listed seals: 55 mm
Housing width including labyrinth seals: 97 mm
Housing width including taconite seals: 160 mm
End cover for shaft-end arrangements: SKF ASNH 511-609
Bearings, seals, locating rings and end covers are selected separately to suit the installation. The stated 85 mm housing width excludes the additional width of the labyrinth or taconite seals.
Available from Bearing King Ltd for industrial maintenance, bearing replacement and machinery assembly.
