One-Piece Industry Standard Clamping Coupling with or without Keyway

1C-Series : One-Piece Clamping Collar


Design fully engages the shaft without marring. Greater axial holding power than set screw collars. Effective on hard and soft shafts.


Bore Sizes: 1/8" through 4"
Available in:
Stainless Steel, Aluminum,
Steel-Black Oxide Finish


Download Catalog Page >> PDF Format


Black Oxide

Steel

 T303
Stainless Steel		 Aluminum Zinc

Plated

Steel 

Bore Size OD Width Clamp

Screw

 Box Qty Weight*
(Ounce)
1C-012 1C-012-S 1C-012-A    1/8   11/16 5/16 4-40 20 0.44
1C-018 1C-018-S 1C-018-A    3/16  11/16 5/16 4-40 20 0.43
1C-025 1C-025-S 1C-025-A 1C-025-Z 1/4   11/16 5/16 4-40 20 0.4
1C-031 1C-031-S 1C-031-A    5/16  11/16 5/16 4-40 20 0.36
1C-037 1C-037-S 1C-037-A 1C-025-Z  3/8   7/8  3/8  6-32 20 0.7
1C-043 1C-043-S 1C-043-A 1C-043-Z 7/16  15/16 3/8  6-32 20 0.81
1C-050 1C-050-S 1C-050-A 1C-050-Z  1/2  1  1/8  13/32 8-32 20 1.3
1C-056 1C-056-S 1C-056-A    9/16 1  5/16 7/16 10-32 20 2
1C-062 1C-062-S 1C-062-A 1C-062-Z  5/8  1  5/16 7/16 10-32 20 1.8
1C-068 1C-068-S 1C-068-A   11/16 1  1/2  1/2  10-32 20 2.9
1C-075 1C-075-S 1C-075-A 1C-075-Z  3/4  1  1/2  1/2  1/4-28 20 2.7
1C-081 1C-081-S 1C-081-A   13/16 1  5/8  1/2  1/4-28 20 3.2
1C-087 1C-087-S 1C-087-A    7/8  1  5/8  1/2  1/4-28 20 2.96
1C-093 1C-093-S 1C-093-A   15/16 1  3/4  1/2  1/4-28 20 3.51
1C-100 1C-100-S 1C-100-A 1C-100-Z 1     1  3/4  1/2  1/4-28 20 3.3
1C-106 1C-106-S 1C-106-A   1 1/16 1  7/8  1/2  1/4-28 10 3.9
1C-112 1C-112-S 1C-112-A   1 1/8  1  7/8  1/2  1/4-28 10 3.63
1C-118 1C-118-S 1C-118-A 1C-118-Z 1 3/16 2  1/16 1/2  1/4-28 10 4.7
1C-125 1C-125-S 1C-125-A 1C-125-Z 1 1/4  2  1/16 1/2  1/4-28 10 4.4
1C-131 1C-131-S 1C-131-A   1 5/16 2  1/4  9/16 1/4-28 10 6.19
1C-137 1C-137-S 1C-137-A   1 3/8  2  1/4  9/16 1/4-28 10 5.9
1C-143 1C-143-S 1C-143-A   1 7/16 2  1/4  9/16 1/4-28 10 5.5
1C-150 1C-150-S 1C-150-A 1C-150-Z 1 1/2  2  3/8  9/16 1/4-28 10 6.3
1C-156 1C-156-S 1C-156-A   1 9/16 2  3/8  9/16 1/4-28 10 5.9
1C-162 1C-162-S 1C-162-A   1 5/8  2  5/8  11/16 5/16-24 5 9.65
1C-168 1C-168-S 1C-168-A   1 11/16 2  3/4  11/16 5/16-24 5 10.7
1C-175 1C-175-S 1C-175-A 1C-175-Z 1 3/4  2  3/4  11/16 5/16-24 5 10.2
1C-181 1C-181-S     1 13/16  2  7/8  11/16 5/16-24 5 10.2
1C-187 1C-187-S 1C-187-A   1 7/8  2  7/8  11/16 5/16-24 5 10.9
1C-193 1C-193-S 1C-193-A 1C-193-Z 1 15/16 3      11/16 5/16-24 5 12
1C-200 1C-200-S 1C-200-A 1C-200-Z 2    3     11/16 5/16-24 5 11.6
1C-206       2 1/16  3  1/4  3/4  5/16-24 5 11.6
1C-212 1C-212-S     2 1/8  3  1/4  3/4  5/16-24 5 15.2
1C-218 1C-218-S     2 3/16 3  1/4  3/4  5/16-24 5 14.4
1C-225 1C-225-S   1C-225-Z 2 1/4  3  1/4  3/4  5/16-24 5 13.66
1C-231       2 5/16  3  1/2  3/4  5/16-24 5 13.66
1C-237 1C-237-S     2 3/8  3  1/2  3/4  5/16-24 5 16.5
1C-243 1C-243-S     2 7/16 3  1/2  3/4  5/16-24 5 15.6
1C-250 1C-250-S 1C-250-A 1C-250-Z 2 1/2  3  3/4  7/8  3/8-24 5 23.1
1C-256       2 9/16  3  7/8  7/8  3/8-24 5 23.1
1C-262 1C-262-S     2 5/8  3  7/8  7/8  3/8-24 5 23.9
1C-268       2 11/16 4      7/8  3/8-24 5 25.8
1C-275 1C-275-S   1C-275-Z 2 3/4  4      7/8  3/8-24 5 29.2
1C-281       2 13/16 4  1/4  7/8  3/8-24 5 29.2
1C-287 1C-287-S     2 7/8  4  1/4  7/8  3/8-24 5 29.2
1C-293 1C-293-S   1C-293-Z 2 15/16 4  1/4  7/8  3/8-24 5 28
1C-300 1C-300-S   1C-300-Z 3    4  1/4  7/8  3/8-24 5 26.8
H1C-318       3 3/16 4  1/2  7/8  3/8-24 5 28.3
H1C-325       3 1/4  4  1/2  7/8  3/8-24 5 27.3
H1C-343       3 7/16 4  3/4  7/8  3/8-24 5 31
H1C-350       3 1/2  4  3/4  7/8  3/8-24 5 29.1
H1C-393       3 15/16 5 1/4  7/8  3/8-24 5 35
H1C-400       4  5  1/4  7/8  3/8-24 5 33

DIMENSION - BORE, INCH
TOLERANCE +.003/-.000
* Weights as noted are approximate
1C-Series Bore sizes 1 9/16” through 3” do not have a relief cut