0.146" ID Bearings | McMaster-Carr

When shoulders come up short, use these shims to extend the shoulder length on your screw. Wiggle the shims over the threads and up to the existing shoulder to create the exact shoulder length you need. Use them to create more space for bearings, pulleys, and sprockets, or extend the length of travel along the shoulder.

You can stack multiple shims to achieve the exact shoulder length or space you need.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.

Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.

	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	For 3/16" Diameter Shoulder

	0.005"	-0.0005" to 0.0005"	No. 8	0.146"	0" to 0.011"	0.178"	-0.002" to 0.002"	Rockwell B70	10	000000000	000000


	Highly Corrosion-Resistant 316 Stainless Steel







					For 3/16" Diameter Shoulder

					0.005"	-0.0005" to 0.0005"	No. 8	0.146"	0" to 0.011"	0.178"	-0.002" to 0.002"	Rockwell B70	10	000000000	00000


					Stress-Resistant Spring Steel







									For 3/16" Diameter Shoulder

									0.005"	-0.0005" to 0.0005"	No. 8	0.146"	0" to 0.011"	0.185"	-0.002" to 0.002"	Rockwell C40	10	000000000	00000