QUICK FLEX Flanged Spacer Hubs - Inch (Imperial) Bores On The Timken Company

Part Number	Description	Bore Size	Coupling Size	Keyway Size (W x D)	CAD
88345039978	N/A QF500SPHUBX4.5	N/A 4.5 in	N/A 500	N/A 1x1/2 in	N/A
88345043854	N/A QF500SPHUBX4-1/2	N/A 4-1/2 in	N/A 500	N/A 1x1/2 in	N/A
88345046240	N/A QF500SPHUBX2-3/4	N/A 2-3/4 in	N/A 500	N/A 7/8x7/16 in	N/A
88345050116	N/A QF500SPHUBX3-1/4	N/A 3-1/4 in	N/A 500	N/A 3/4x3/8 in	N/A
88345043855	N/A QF500SPHUBX4-1/4	N/A 4-1/4 in	N/A 500	N/A 1x1/2 in	N/A
88345043856	N/A QF500SPHUBX4-1/4U	N/A 4-1/4 in	N/A 500	N/A 1x1/2 in	N/A
88345043857	N/A QF500SPHUBX4-3/4	N/A 4-3/4 in	N/A 500	N/A 1-1/4x5/8 in	N/A
88345043849	N/A QF500SPHUBX3-3/8	N/A 3-3/8 in	N/A 500	N/A 7/8x7/16 in	N/A
88345043850	N/A QF500SPHUBX3-3/8U	N/A 3-3/8 in	N/A 500	N/A 7/8x7/16 in	N/A
88345043852	N/A QF500SPHUBX3-7/8	N/A 3-7/8 in	N/A 500	N/A 1x1/2 in	N/A
88345043853	N/A QF500SPHUBX3-7/8U	N/A 3-7/8 in	N/A 500	N/A 1x1/2 in	N/A
88345046143	N/A QF500SPHUBX4-3/8	N/A 4-3/8 in	N/A 500	N/A 1x1/2 in	N/A
88345043851	N/A QF500SPHUBX3-7/16	N/A 3-7/16 in	N/A 500	N/A 7/8x7/16 in	N/A
88345043847	N/A QF500SPHUBX3-15/16	N/A 3-15/16 in	N/A 500	N/A 1x1/2 in	N/A
88345043848	N/A QF500SPHUBX3-15/16U	N/A 3-15/16 in	N/A 500	N/A 1x1/2 in	N/A
88345045510	N/A QF500SPHUBXPB	N/A 1 7/8 in	N/A 500	N/A NKW in	N/A
88345095960	N/A QF500LSPHUBXPB	N/A 1 7/8 in	N/A 500	N/A 1/2x1/4 in	N/A
88345049761	N/A QF1000SPHUBX5-1/2U	N/A 5 1/2 in	N/A 1000	N/A 1-1/4x5/8 in	N/A
88345005126	N/A QF1000SPHUBXPB	N/A 1 7/8 in	N/A 1000	N/A NKW in	N/A
88345095961	N/A QF1000LSPHUBXPB	N/A 1 7/8 in	N/A 1000	N/A 1/2x1/4 in	N/A
88345043804	N/A QF1890SPHUBX7U	N/A 7 in	N/A 1890	N/A 1-3/4x3/4 in	N/A
88345043802	N/A QF1890SPHUBX6-1/2	N/A 6-1/2 in	N/A 1890	N/A 1-1/2x3/4 in	N/A
88345043803	N/A QF1890SPHUBX6-1/2U	N/A 6-1/2 in	N/A 1890	N/A 1-1/2x3/4 in	N/A
88345043801	N/A QF1890SPHUBX5-3/4	N/A 5-3/4 in	N/A 1890	N/A 1-1/2x3/4 in	N/A
88345005259	N/A QF1890SPHUBXPB	N/A 2 1/2 in	N/A 1890	N/A NKW in	N/A

88345039978

N/A QF500SPHUBX4.5

N/A 4.5 in

N/A 500

N/A 1x1/2 in

N/A

88345043854

N/A QF500SPHUBX4-1/2

N/A 4-1/2 in

N/A 500

N/A 1x1/2 in

N/A

88345046240

N/A QF500SPHUBX2-3/4

N/A 2-3/4 in

N/A 500

N/A 7/8x7/16 in

N/A

88345050116

N/A QF500SPHUBX3-1/4

N/A 3-1/4 in

N/A 500

N/A 3/4x3/8 in

N/A

88345043855

N/A QF500SPHUBX4-1/4

N/A 4-1/4 in

N/A 500

N/A 1x1/2 in

N/A

88345043856

N/A QF500SPHUBX4-1/4U

N/A 4-1/4 in

N/A 500

N/A 1x1/2 in

N/A

88345043857

N/A QF500SPHUBX4-3/4

N/A 4-3/4 in

N/A 500

N/A 1-1/4x5/8 in

N/A

88345043849

N/A QF500SPHUBX3-3/8

N/A 3-3/8 in

N/A 500

N/A 7/8x7/16 in

N/A

88345043850

N/A QF500SPHUBX3-3/8U

N/A 3-3/8 in

N/A 500

N/A 7/8x7/16 in

N/A

88345043852

N/A QF500SPHUBX3-7/8

N/A 3-7/8 in

N/A 500

N/A 1x1/2 in

N/A

88345043853

N/A QF500SPHUBX3-7/8U

N/A 3-7/8 in

N/A 500

N/A 1x1/2 in

N/A

88345046143

N/A QF500SPHUBX4-3/8

N/A 4-3/8 in

N/A 500

N/A 1x1/2 in

N/A

88345043851

N/A QF500SPHUBX3-7/16

N/A 3-7/16 in

N/A 500

N/A 7/8x7/16 in

N/A

88345043847

N/A QF500SPHUBX3-15/16

N/A 3-15/16 in

N/A 500

N/A 1x1/2 in

N/A

88345043848

N/A QF500SPHUBX3-15/16U

N/A 3-15/16 in

N/A 500

N/A 1x1/2 in

N/A

88345045510

N/A QF500SPHUBXPB

N/A 1 7/8 in

N/A 500

N/A NKW in

N/A

88345095960

N/A QF500LSPHUBXPB

N/A 1 7/8 in

N/A 500

N/A 1/2x1/4 in

N/A

88345049761

N/A QF1000SPHUBX5-1/2U

N/A 5 1/2 in

N/A 1000

N/A 1-1/4x5/8 in

N/A

88345005126

N/A QF1000SPHUBXPB

N/A 1 7/8 in

N/A 1000

N/A NKW in

N/A

88345095961

N/A QF1000LSPHUBXPB

N/A 1 7/8 in

N/A 1000

N/A 1/2x1/4 in

N/A

88345043804

N/A QF1890SPHUBX7U

N/A 7 in

N/A 1890

N/A 1-3/4x3/4 in

N/A

88345043802

N/A QF1890SPHUBX6-1/2

N/A 6-1/2 in

N/A 1890

N/A 1-1/2x3/4 in

N/A

88345043803

N/A QF1890SPHUBX6-1/2U

N/A 6-1/2 in

N/A 1890

N/A 1-1/2x3/4 in

N/A

88345043801

N/A QF1890SPHUBX5-3/4

N/A 5-3/4 in

N/A 1890

N/A 1-1/2x3/4 in

N/A

88345005259

N/A QF1890SPHUBXPB

N/A 2 1/2 in

N/A 1890

N/A NKW in

N/A

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No Preference
1
1 1/2
1 1/8
1 3/4
1 7/8
1-1/16
1-1/2
1-1/4
1-1/8
1-15/16
1-3/16
1-3/4
1-3/8
15/16
1-5/8
17/32
1-7/8
2
2 1/2
2 1/4
2 3/8
2.5
2-1/2
2-1/4
2-1/8
2-15/16
23/32
2-3/4
2-3/8
2-5/8
2-7/8
3
3.325
3/4
3-1/2
3-1/4
3-15/16
3-3/4
3-3/8
3-5/8
3-7/16
3-7/8
4
4.5
4-1/2
4-1/4
4-1/8
4-3/4
4-3/8
5 1/2
5/8
5-3/4
6
6-1/2
7
7/8

Bore Size (in)

Coupling Size

Keyway Size (in)

Part Number

Description

Bore Size

Coupling Size

Keyway Size (W x D)

CAD