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Inch Tapered Bore Mounting Pillow Block SDAF231K and SDAF232K Series
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ENGINEERED BEARINGS
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Mounted Bearings
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Mounted SAF Split-Block Spherical Roller Bearings
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Inch Tapered Bore Mounting Pillow Block SDAF231K and SDAF232K Series
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Part Number SDAF 23188K 16-1/2
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Part Number SDAF 23188K 16-1/2, Inch Tapered Bore Mounting Pillow Block SDAF231K and SDAF232K Series
Each assembly includes the housing cap and base, cap bolts, bearing, bearing adapter, locknut and lockwasher, stabilizing ring and triple ring seals.
To order pillow block housing only, use the numbers listed in the "Housing Only" column. These units include: cap, base, cap bolts, triple ring seals and stabilizing ring.
Assembly and pillow blocks described on this page constitute fixed units.
To order float units, specify part number plus suffix "Float" or "FL".
If one end closed assembly is required, specify “CL” in assembly number when ordering.
All assemblies shown are furnished in cast iron. If cast steel is desired, add the letter “S” to the alpha prefix (e.g., SDAFS 23152K).
When ordering non-standard pillow block assemblies specify the shaft size.
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Basic Load Ratings
·
Factors
Specifications
Bearing Number
23188K
Diameter S-1
16 1/2
in
A
17
in
B
52
in
C
21
in
D
5.5
in
E Max.
46.125
in
E Min.
44.375
in
F
14.5
in
H
33.75
in
L
21.75
in
Bolt Hole Length
3.125
in
Bolt Hole Width
2.25
in
Adapter Assembly Number
1
SNP-3188 x 16-1/2
Housing Only
2
SDAF3188K x 16-1/2
Stabilizing Ring 1 Req'd
3
A8976
Triple Seal Req'd
ER 958-1
Full Timken Part Number
SDAF23188K16-1/2
1
Includes sleeve, locknut and lockwasher. Add shaft size to order.
2
"Housing Only" includes: cap, base, cap bolts, triple ring seals and stabilizing ring as required. When ordering non-standard housing only specify the shaft size.
3
Stabilizing ring is used for fixed (FX) block; do not use for float (FL) mounting.
Basic Load Ratings
C0 - Static Radial Rating
2310000
lbf
10300000
N
C1(2) - Dynamic Radial Rating (Two-Rows)
1340000
lbf
5970000
N
Factors
e - ISO Factor
1
0.3
Y0 - ISO Factor
2
2.21
Y1 - ISO Factor
3
2.26
Y2 - ISO Factor
4
3.37
Reference Thermal Speed Rating (Grease)
410
rpm
Reference Thermal Speed Rating (Oil)
5
450
rpm
Cg - Geometry Factor
6
0.0984
1
These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2
These factors apply for both inch and metric calculations. See engineering
3
These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
4
These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
5
See thermal speed ratings in the engineering section.
6
Geometry constant for Lubrication Life Adjustment Factor a3l.
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