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All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted SAF Split-Block Spherical Roller Bearings > Inch Tapered Bore Mounting Pillow Block SDAF225 and SDAF226 Series > Part Number SDAF 22618  
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Part Number SDAF 22618, Inch Tapered Bore Mounting Pillow Block SDAF225 and SDAF226 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 number listed in the "Housing Only" column. These units include: cap, base, cap bolts, triple ring seals and stabilizing ring.
  • Assembly and pillow blocks as 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.
  • Assemblies shown are furnished in cast iron. If cast steel is desired, add the letter "S" to the alpha prefix (e.g., SDAFS 22515).

When ordering non-standard pillow block assemblies specify the shaft size.



Unit of Measure: Imperial Metric Both

Specifications  · Basic Load Ratings  · Factors

Specifications

Bearing Number
22318K

Diameter S-1
3 3/16 in

A
4-3/4 in

B
15.5 in

C
6.125 in

D
2 in

E Max.
13.5 in

E Min.
12 in

F
3.625 in

H1
9.4375 in

Oil Level K
2 in

L2
6.8750 in

Y
2.0469 in

No. of Base Bolts Required
4

Size of Base Bolts Required
3/4

Bolt Hole Length
1.5 in

Bolt Hole Width
0.75 in

Adapter Assembly Number3
SNW-118 x 3-3/16

Housing Only4
SDAF618

Stabilizing Ring 1 Req'd5
SR-21-18

Triple Seal Req'd
LOR 69

Full Timken Part Number
SDAF22618
1 Tolerance -0 to + 0.4 mm (-0 to +1/64 in)
2 Tolerance -0 to + 0.4 mm (-0 to +1/64 in)
3 Includes sleeve, locknut and lockwasher. Add shaft size to order.
4 "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.
5 Stabilizing ring is used for fixed (FX) block; do not use for float (FL) mounting.


Basic Load Ratings

C0 - Static Radial Rating
148000 lbf
659000 N

C1(2) - Dynamic Radial Rating (Two-Rows)
136000 lbf
606000 N


Factors

e - ISO Factor1
0.32

Y0 - ISO Factor2
2.04

Y1 - ISO Factor3
2.09

Y2 - ISO Factor4
3.11

Reference Thermal Speed Rating (Grease)
2900 rpm

Reference Thermal Speed Rating (Oil)5
3400 rpm

Cg - Geometry Factor6
0.0685
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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