Plummer Block Housing
- Plummer Block housings easily constitute bearing units by combining them with self-aligning ball bearings or spherical roller bearings.
- Accuracy, strength, and rigidity are improved by NACHI original design.
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- Wide range of sizes and configurations
- Lightweight and high strength by the optimal design
- By use of tapered bore bearing and adapter, the bearings can be mounted at any selected shaft position.
- For stepped shaft, the bearings with cylindrical bore are fixed by shaft nut.
| Bearing Bore Diameter Number | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Self-aligning Ball Bearings | Spherical Roller Bearings | |||||||||
| 12 | 22 | 13 | 23 | 230 | 231 | 222 | 232 | 213 | 223 | |
| SN5 SN5F |
05K - 22K | 05K - 22K | - | - | - | - | 05K - 32K | 18K - 32K | - | - |
| SN6 SN6F |
- | - | 05K - 22K | 05K - 22K | - | - | - | - | 05K - 22K | 08K - 32K |
| SN30 | - | - | - | - | 24K - 38K | - | - | - | - | - |
| SN31 | - | - | - | - | - | 22K - 38K | - | - | - | - |
| SN2 SN2F |
05 - 22 | 05 - 22 | - | - | - | - | 05 - 32 | 18 - 32 | - | - |
| SN3 SN3F |
- | - | 05 - 17 | 05 - 17 | - | - | - | - | 05 - 17 | 05 - 17 |
| SD5 | - | - | - | - | - | - | 34K - 64K | - | - | - |
| SD6 | - | - | - | - | - | - | - | - | - | 34K - 56K |
| SD30 | - | - | - | - | 34K - 64K | - | - | - | - | - |
| SD31 | - | - | - | - | - | 34K - 64K | - | - | - | - |
| V | 08(K) - 22(K) | 08(K) - 22(K) | 07(K) - 22(K) | 07(K) - 22(K) | 22(K) - 44(K) | 22(K) - 40(K) | 08(K) - 38(K) | 22(K) - 38(K) | 07(K) - 22(K) | 08(K) - 32(K) |
Dimension Table
Plummer Block Housings
SN5, SN6, SN30, SN31
Shaft Diameter 20 - 170mm- Flat bottom type SN5F, SN6F
Shaft Diameter 20 - 140mm - SN2, SN3
Shaft Diameter 25 - 160mm - Flat bottom type SN2F, SN3F
Shaft Diameter 25 - 160mm - SD5, SD6, SD30, SD31
Shaft Diameter 150 - 300mm
One piece type Plummer Block Housings
- V, For tapered bore bearings with adapter
Shaft Diameter 30 - 200mm - V, For Cylindrical bore bearings
Shaft Diameter 35 - 190mm
Split-housings
(Remark)
- When symbol are omitted, shift to left side.
- Threads and number of grease inlet/outlet are shown in tables.
- Grease nipple A type is attached at grease inlet.
One-piece housings
(Remark)
- When symbol are omitted, shift to left side.
- Supplementary symbols accord with split housing
- Threads and number of oil inlet/outlet are shown in tables.
- Grease nipple of button-head type is attached at grease inlet.
Locating Rings
Locating ring for fixed side housing is identified as follows.
locating ring should be prepared besides plummer block housings.
The dimension table show the designation and number of ring required for each bearing.
Combination of Plummer Block Housing, Bearing, Adapter and Locating Ring
The designations of combination are obtained by adding each with '+' as following order.
(Remark)
- Designations for parts not required are omitted.