The SKF SNL3138 is a cast iron split plummer block housing designed to support compatible spherical 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 320 mm outside diameter and features a 124 mm bearing seat width and a 190 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 135 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 3138
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: 135 mm
Bearing seat diameter, Da: 320 mm
Bearing seat diameter tolerance: G7
Bearing seat width, Ca: 124 mm
Centre height, H1: 190 mm
Overall length, L: 560 mm
Overall height, H: 375 mm
Housing width, A: 260 mm
Foot width, A1: 210 mm
Foot height, H2: 80 mm
Attachment bolt centres, J: 480 mm
Attachment bolt centres, axial direction, J1: 120 mm
Number of standard attachment bolt holes: 4
Attachment bolt hole length, N: 34 mm
Attachment bolt hole width, N1: 28 mm
Recommended attachment bolt size: M24
Lubrication: Grease
Housing seals: Supplied without seals
Mounting arrangements: Through shaft or shaft end
Approximate net weight: 97.6 kg
Compatible bearings, adapter sleeves and locating rings
135 mm shaft – SKF 22330 CCK/W33 spherical roller bearing: H 2330 adapter sleeve and 2 FRB 8/320 locating rings
135 mm shaft – SKF 22330-2CS5K sealed spherical roller bearing: H 2330 adapter sleeve and 2 FRB 8/320 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
135 mm shaft – Labyrinth seal option: SKF TS 38/135
135 mm shaft – Heavy-duty taconite seal option: SKF TNF 38/135
Housing width including labyrinth seals: 270 mm
Housing width including taconite seals: 330 mm
End cover for shaft-end arrangements: SKF ETS 38
Bearings, adapter sleeves, seals, locating rings and end covers are selected separately to suit the installation. The 320 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.
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Returns Policy
1. You may return an unused item in new condition unless faulty within 30 days of receipt. Damaged or used goods cannot be refunded.
2. A copy of our returns form must be included with the returned goods.
3. Customers will be responsible for the original and return shipping charges unless our customer service department determines that we are at fault for an order error or product defect. Bearing King will not be responsible for any return item lost in transit.
4. Once we receive the package and the goods are checked, we will refund you by the payment method used when the order was placed.
5. Please allow 3-5 days for your return to be processed or exchange to be sent.
