SKF SNH plummer block housings Bearing types • Self-aligning ball bearings • Spherical roller bearings Bearing dimension series • 02, 03, 22, 23, 32 Shaft diameter range • 25 – 160 mm Typical shaft-bearing combination • Plain shaft with bearing on an adapter
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Plummer Block and Rolling Bearing Tolerances 2. Plummer Block and Rolling Bearing Tolerances 2.1 Plummer block tolerances The tolerances of NTN split plummer blocks meet JIS B 1551, and those of unit type plummer blocks with Japan Bearing Manufacturers' Association standard BAS 188. The tolerances of both types are given in the tables below.
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A quick way to access detailed product data is via a product table number or SKF bearing size chart. Product table numbers are listed at the front of the product catalogue, at the beginning of each product chapter, and in the product index at the back of the catalogue. SKF Rolling bearings catalogue
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11 Cap & Fixing Bolts Sizes Recommended Tightening Torques SNN Housing Cap Bolt Size Grade 8.8 Recommended max. Tightening Torque Base Bolts Size Grade 8.8 Recommended Nm Nm SNN505 M10 50 M12 80 SNN506-605 M10 50 M12 80 SNN507
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housing units. Further information. □ Catalogue GK 1, Bearing Housings https://www.schaeffler.de/std/1F7F.
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I) Dimension series symbol of plummer block. ・5, 6, 30, 31, 33, and 34 : Tapered bore bearing applicable model. ・2, 3, 35, and 36.
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Plummer Blocks Interchange Section 56 Plummer Block Housings for Tapered Bore Bearings 60 Cap & Fixing Bolts Sizes Recommended Tightening Torques SNN Housing Cap Bolt Size Grade 8.8
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Further information on maintenance products. □ Catalogue IS 1, Mounting and Maintenance of Rolling Bearings. Locating bearing. Non-locating bearing. Figure 9.
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Plummer Blocks Plummer Blocks G-6 G-7 All types All sizes Plummer block nominal dimension Surface finish roughness 5 12.5Ra Machining allowance L-L Unit: mm Tolerance 31 to 120 ±0.8 121 to 315 ±1.2 316 to 1 000 ±2.0 1 001 to 2 000 ±3.0 Dimension after machining L Table 3 Machining allowance Unit: mm Table 4 Tolerance of dimension L' after
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4 Nominal number of plummer block and bearing 2.2 Nominal number of rolling bearing Rolling bearing part numbers indicate bearing type, dimensions, tolerances, internal construction,
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self-aligning ball bearings used for standard plummer blocks. 2.7 Light weight yet strong housing. Housings for NTN bearing units come in various shapes.
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The SNN 500 and 600 series comprise a number of housings which, when combined with different seal options and ball or spherical roller bearings, provide an
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Plummer Block and Rolling Bearing Tolerances 3. Plummer Block and Rolling Bearing Tolerances 3.1 Plummer block tolerances The tolerances of NTN split plummer blocks meet JIS B 1551, and those of unit type plummer blocks with Japan Bearing Industrial Association standard BAS 188. The tolerances of both types are given in the tables below.
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Plummer Blocks (Bearing housings) Series SNV for bearings with adapter sleeves Plummer Block Designation SNV 52 SW 62 SNV 72 SNV 80 SW 85 SNV 90 SNV 100 58 Shaft dia da mm 20 25 20 30 25 35 30 40 45 35 50 40 A 77 82 85 85 90 95 Al 46 52 52 60 60 60 70 31.5 36.5 46.5 51.5 56.5 62 H 71 89 93 107 109 113 127 DIMENSION IN MM Bearing with
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The SKF assortment of SNL plummer block housings can accommodate shafts ranging from 20 to 160 mm in diameter. These hous- ings, which all share the same design features, are available with a variety of seals.
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Permanently Lubricated WashdownMounted Ball Bearings with Two-Bolt Flange. Permanently lubricated and IP69K certified for washdown environments, these mounted ball bearings are useful for hard-to-reach areas in food, beverage, pharmaceutical, and chemical plants. Mount them using their two-bolt flange.
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Plummer Blocks Plummer Blocks G-4 G-5 Size of castings (mm) Unit: mm 120 or below 121 to 250 251 to 400 401 to 800 801 to 1600 ±1.5 ±2.0 ±3.0 ±4.0 ±6.0 A plummer block number
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STANDARD TYPE PLUMMER BLOCKS SN 5, SN 6 Types Shaft Diameter 20 - 55 mm N N 1 L J H H s t 2 A 1 H 1 Free-End Fixed-End Width Locating Ring Outside Diameter j D A g j d 1 2 X 20 SN 505 52 40 130 15 20 67 165 46 22 75 25 M 8 M 12 1.1 SN 605 62 50 150 15 20 80 185 52 22 90 34 M 8 M 12 1.6 25 SN 506 62 50 150 15 20 77 185 52 22 90 30 M 8 M 12 1.7
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The bearings are either directly seated on the shaft or fixed with adapter sleeves. This results in different shaft diameters for the same bearing size.
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They are mainly used in agricultural machinery. Made of grey cast iron and sealed with a felt seal. Shaft diameter: 20–60 mm. Series TVN 200/300 – Housings for
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