QUICK FLEX Standard Hubs with Keyway - Metric Bores On The Timken Company

Part Number	Description	Bore Size	Coupling Size	Keyway Size (mm)	Length thru Bore	CAD
88345044213	N/A QF250S303X75MM	N/A 75 mm	N/A 250	N/A 20x4.9	N/A 3.1 in78.7 mm	N/A
88345043056	N/A QF250X75MM	N/A 75 mm	N/A 250	N/A 20x4.9	N/A 3.1 in78.7 mm	N/A
88345047267	N/A QF250X75MMU	N/A 75 mm	N/A 250	N/A 20x4.9	N/A 3.1 in78.7 mm	N/A
88345044105	N/A QF175S303X75MM	N/A 75 mm	N/A 175	N/A 20x4.9	N/A 2.67 in67.8 mm	N/A
88345043010	N/A QF175X75MM	N/A 75 mm	N/A 175	N/A 20x4.9	N/A 2.67 in67.8 mm	N/A
88345049999	N/A QF175X75MMU	N/A 75 mm	N/A 175	N/A 20x4.9	N/A 2.67 in67.8 mm	N/A
88345044144	N/A QF175X75MME	N/A 75 mm	N/A 175	N/A 22 x 5.4	N/A 2.67 in67.8 mm	N/A
88345044257	N/A QF250X76MM	N/A 76 mm	N/A 250	N/A 22x5.4	N/A 3.1 in78.7 mm	N/A
88345044214	N/A QF250S303X80MM	N/A 80 mm	N/A 250	N/A 22x5.4	N/A 3.1 in78.7 mm	N/A
88345040938	N/A QF250X80MM	N/A 80 mm	N/A 250	N/A 22x5.4	N/A 3.1 in78.7 mm	N/A
88345044378	N/A QF500S303X80MM	N/A 80 mm	N/A 500	N/A 22x5.4	N/A 3.75 in95.3 mm	N/A
88345041049	N/A QF500X80MM	N/A 80 mm	N/A 500	N/A 22x5.4	N/A 3.75 in95.3 mm	N/A
88345045749	N/A QF500X80MMU	N/A 80 mm	N/A 500	N/A 22x5.4	N/A 3.75 in95.3 mm	N/A
88345044106	N/A QF175S303X80MM	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345095851	N/A QF175X80MM	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345095557	N/A QF175S303X80MMU	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345044147	N/A QF175X80MMU	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345043962	N/A QF1000X80MM	N/A 80 mm	N/A 1000	N/A 22x5.4	N/A 4.6 in116.8 mm	N/A
88345039979	N/A QF1000X80MMU	N/A 80 mm	N/A 1000	N/A 22x5.4	N/A 4.6 in116.8 mm	N/A
88345043963	N/A QF1000X85MM	N/A 85 mm	N/A 1000	N/A 22x5.4	N/A 4.6 in116.8 mm	N/A
88345047257	N/A QF1000X85MMU	N/A 85 mm	N/A 1000	N/A 22x5.4	N/A 4.6 in116.8 mm	N/A
88345044107	N/A QF175S303X85MM	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345096028	N/A QF175X85MM	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345096437	N/A QF175S303X85MMU	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345046176	N/A QF175X85MMU	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A

88345044213

N/A QF250S303X75MM

N/A 75 mm

N/A 250

N/A 20x4.9

N/A 3.1 in78.7 mm

N/A

88345043056

N/A QF250X75MM

N/A 75 mm

N/A 250

N/A 20x4.9

N/A 3.1 in78.7 mm

N/A

88345047267

N/A QF250X75MMU

N/A 75 mm

N/A 250

N/A 20x4.9

N/A 3.1 in78.7 mm

N/A

88345044105

N/A QF175S303X75MM

N/A 75 mm

N/A 175

N/A 20x4.9

N/A 2.67 in67.8 mm

N/A

88345043010

N/A QF175X75MM

N/A 75 mm

N/A 175

N/A 20x4.9

N/A 2.67 in67.8 mm

N/A

88345049999

N/A QF175X75MMU

N/A 75 mm

N/A 175

N/A 20x4.9

N/A 2.67 in67.8 mm

N/A

88345044144

N/A QF175X75MME

N/A 75 mm

N/A 175

N/A 22 x 5.4

N/A 2.67 in67.8 mm

N/A

88345044257

N/A QF250X76MM

N/A 76 mm

N/A 250

N/A 22x5.4

N/A 3.1 in78.7 mm

N/A

88345044214

N/A QF250S303X80MM

N/A 80 mm

N/A 250

N/A 22x5.4

N/A 3.1 in78.7 mm

N/A

88345040938

N/A QF250X80MM

N/A 80 mm

N/A 250

N/A 22x5.4

N/A 3.1 in78.7 mm

N/A

88345044378

N/A QF500S303X80MM

N/A 80 mm

N/A 500

N/A 22x5.4

N/A 3.75 in95.3 mm

N/A

88345041049

N/A QF500X80MM

N/A 80 mm

N/A 500

N/A 22x5.4

N/A 3.75 in95.3 mm

N/A

88345045749

N/A QF500X80MMU

N/A 80 mm

N/A 500

N/A 22x5.4

N/A 3.75 in95.3 mm

N/A

88345044106

N/A QF175S303X80MM

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345095851

N/A QF175X80MM

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345095557

N/A QF175S303X80MMU

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345044147

N/A QF175X80MMU

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345043962

N/A QF1000X80MM

N/A 80 mm

N/A 1000

N/A 22x5.4

N/A 4.6 in116.8 mm

N/A

88345039979

N/A QF1000X80MMU

N/A 80 mm

N/A 1000

N/A 22x5.4

N/A 4.6 in116.8 mm

N/A

88345043963

N/A QF1000X85MM

N/A 85 mm

N/A 1000

N/A 22x5.4

N/A 4.6 in116.8 mm

N/A

88345047257

N/A QF1000X85MMU

N/A 85 mm

N/A 1000

N/A 22x5.4

N/A 4.6 in116.8 mm

N/A

88345044107

N/A QF175S303X85MM

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345096028

N/A QF175X85MM

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345096437

N/A QF175S303X85MMU

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345046176

N/A QF175X85MMU

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

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No Preference
10x3.3
12 x 3.3
12x3.3
14x3.8
16 x 4.3
16x4.3
18x4.4
20 x 4.9
20x4.9
22 x 5.4
22x5.4
25x5.4
28x6.4
32x7.4
36x8.4
3x1.4
40x9.4
45x10.4
4x1.8
50x11.4
56x12.4
5x2.3
6x2.8
8 x 3.3
8x3.3

Bore Size (mm)

Coupling Size

Keyway Size

Part Number

Description

Bore Size

Coupling Size

Keyway Size (mm)

Length thru Bore

CAD