SNL3144 SKF Split Plummer Block Housing for 200mm Shaft
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The SKF SNL3144 is a cast iron split plummer block housing designed to support compatible spherical roller bearings and CARB toroidal roller bearings. Part of SKF’s SNL 30, 31 and 32 series, it provides a rigid bearing support for industrial machinery, while its removable housing cap simplifies bearing installation, inspection and maintenance.
The housing accommodates bearings with a 370 mm outside diameter and features a 140 mm bearing seat width and a 220 mm centre height. Its four-bolt base provides secure mounting, with elongated attachment holes allowing adjustment during installation.
The bearing, sleeve and seal combinations below are suitable for a 200 mm shaft. Each shaft size requires its matching accessories; the housing designation alone does not determine the shaft diameter.
Designed for grease lubrication, the housing can be configured for through-shaft or shaft-end installations. Separate labyrinth and heavy-duty taconite seals allow the sealing arrangement to be selected for the operating environment.
Technical specifications
Brand: SKF
Product designation: SNL 3144
Housing series: SNL 30, 31 and 32
Housing type: Split plummer block housing
Housing construction: Two-piece, with removable cap
Housing material: Cast iron
Shaft diameter with the listed adapter sleeve arrangements: 200 mm
Bearing seat diameter, Da: 370 mm
Bearing seat diameter tolerance: G7
Bearing seat width, Ca: 140 mm
Centre height, H1: 220 mm
Overall length, L: 640 mm
Overall height, H: 434 mm
Housing width, A: 290 mm
Foot width, A1: 240 mm
Foot height, H2: 90 mm
Attachment bolt centres, J: 540 mm
Attachment bolt centres, axial direction, J1: 140 mm
Number of standard attachment bolt holes: 4
Attachment bolt hole length, N: 42 mm
Attachment bolt hole width, N1: 35 mm
Recommended attachment bolt size: M30
Lubrication: Grease
Housing seals: Supplied without seals
Mounting arrangements: Through shaft or shaft end
Approximate net weight: 140 kg
Compatible bearings, adapter sleeves and locating rings
200 mm shaft – SKF 23144 CCK/W33 spherical roller bearing: OH 3144 H adapter sleeve and 2 FRB 10/370 locating rings
200 mm shaft – SKF 23144-2CS5K sealed spherical roller bearing: OH 3144 HTL adapter sleeve and 2 FRB 10/370 locating rings
200 mm shaft – SKF C 3144 K CARB toroidal roller bearing: OH 3144 HTL adapter sleeve and 2 FRB 10/370 locating rings
The locating ring quantities shown are totals per housing for an axially located outer ring. Non-locating spherical roller bearing arrangements normally require axial freedom in the housing. CARB bearings, where listed, accommodate axial displacement internally and require the outer ring to be located.
Compatible sealing accessories
200 mm shaft – Labyrinth seal option: SKF TS 44
200 mm shaft – Heavy-duty taconite seal option: SKF TNF 44
Housing width including labyrinth seals: 300 mm
Housing width including taconite seals: 357 mm
End cover for shaft-end arrangements: SKF ETS 44
Bearings, adapter sleeves, seals, locating rings and end covers are selected separately to suit the installation. The 370 mm bearing seat diameter refers to the bearing outside diameter. Other shaft sizes require different bearing and accessory combinations.
Available from Bearing King Ltd for industrial maintenance, bearing replacement and machinery assembly.
