Spline Adapters | McMaster-Carr

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53 Products

Drill Bit Shank Adapters for Rotary Hammers


For SDS-Plus-Shank Drill Bits and Spline Shanks	For Spline-Shank Drill Bits and SDS Max Shanks	For Tapered-Round-Shank Drill Bits and Spline Shanks

Adapt your rotary hammer to fit a variety of masonry drill bit shank types. Made of steel, these adapters withstand the repeated high-impact loads of hammer drilling. Adapters for tapered round bits include a bit removal tool for easy bit changes.

For Drill Bit Shank Type	Shank Type	Overall Lg.	Material	Includes		Each
SDS Plus	Spline	8"	Steel	—	89385A31	000000
Spline	SDS Max	10 3/4"	Steel	—	89385A34	000000
Tapered Round	Spline	7 1/4"	Steel	Bit Removal Tool	2813A47	00000

Splined-to-Keyed Flexible Shaft Couplings


	(Each Component Sold Separately)

Diameter

Connect splined shafts to keyed shafts. These couplings are commonly used to connect hydraulic pumps, compressors, and other heavy duty equipment, which often have splined shafts, to electric motors and other components that often have keyed shafts. They have a splined hub on one side and a keyed hub on the other. A spider cushion in the middle damps vibration, absorbs shock loads, and adjusts for misalignment. Because the hubs interlock with the spider, these couplings will continue to work even if the spider breaks or wears away. This fail-safe design gives you time to shut down your power source before damage occurs to other components. Lubrication is not required.

A complete coupling consists of two hubs and one spider. All components are sold separately.

Splined Iron Hubs and Buna-N Spiders—For Forward/Reverse, Start/Stop Motion

Buna-N—Buna-N spiders are best for high-speed systems and jobs with frequent starting, stopping, and reversing. The most commonly used spider material, Buna-N absorbs vibration better than other materials but cannot handle as much torque. It won't break down when exposed to oil and chemicals.

Hubs							Keyed Iron Hubs			Buna-N Spiders
												Misalignment Capability
Overall Lg.	OD	Pitch	Pressure Angle	Choose an SAE Spline Size (Diameter X × Diameter Y)		Each	Choose a Shaft Diameter		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each
2 3/16"	2 7/64"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754")	9843T101	000000	3/8", 1/2", 5/8", 3/4", 1"	3451N801	000000	9,000	140	0.015"	1°	-40 to 212	Buna-N	6408K75	000000
2 7/8"	2 17/32"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877")	9843T301	00000	1/2", 5/8", 3/4", 1", 1 1/8"	3451N802	00000	7,000	315	0.015"	1°	-40 to 212	Buna-N	6408K77	00000
4 1/2"	3 3/4"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877"), C (1 1/4" × 1.087"), D (1 3/4" × 1.506"), E (1 3/4" × 1.506")	9843T601	000000	5/8", 3/4", 1", 1 1/8", 1 1/4", 1 1/2", 1 3/4"	3451N803	00000	5,000	1,240	0.015"	1°	-40 to 212	Buna-N	6408K81	00000

Splined Iron Hubs and Polyurethane Rubber Spiders—For Continuous Motion

Polyurethane Rubber—Use polyurethane spiders for high-torque, continuous-motion applications where vibration is a concern. They absorb vibration better than Hytrel spiders but are not as resistant to oil and chemicals. They're not for use in applications with frequent starting, stopping, and reversing.

Hubs							Keyed Iron Hubs			Polyurethane Spiders
												Misalignment Capability
Overall Lg.	OD	Pitch	Pressure Angle	Choose an SAE Spline Size (Diameter X × Diameter Y)		Each	Choose a Shaft Diameter		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each
2 3/16"	2 7/64"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754")	9843T102	000000	3/8", 1/2", 5/8", 3/4", 1"	3451N804	00000	3,600	210	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K13	000000
2 7/8"	2 17/32"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877")	9843T302	00000	1/2", 5/8", 3/4", 1", 1 1/8"	3451N805	00000	3,600	475	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K15	00000
4 1/2"	3 3/4"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877"), C (1 1/4" × 1.087"), D (1 3/4" × 1.506"), E (1 3/4" × 1.506")	9843T602	000000	5/8", 3/4", 1", 1 1/8", 1 1/4", 1 1/2", 1 3/4"	3451N806	00000	3,600	1,860	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K19	000000

Splined Iron Hubs and Hytrel Spiders—For Continuous Motion

Hytrel—Hytrel spiders handle the highest torque of any of our spiders and have the best resistance to oil and chemicals. However, they don't compensate for as much misalignment and are not recommended for applications with frequent starting, stopping, and reversing.

Hubs							Keyed Iron Hubs			Hytrel Spiders
												Misalignment Capability
Overall Lg.	OD	Pitch	Pressure Angle	Choose an SAE Spline Size (Diameter X × Diameter Y)		Each	Choose a Shaft Diameter		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each
2 3/16"	2 7/64"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754")	9843T103	000000	3/8", 1/2", 5/8", 3/4", 1"	3451N807	000000	3,600	400	0.015"	0.5°	-55 to 245	Hytrel	6408K95	000000
2 7/8"	2 17/32"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877")	9843T303	00000	1/2", 5/8", 3/4", 1", 1 1/8"	3451N808	00000	3,600	790	0.015"	0.5°	-55 to 245	Hytrel	6408K96	000000
4 1/2"	3 3/4"	0.5"	30°	A (5/8" × 0.509"), B (7/8" × 0.754"), BB (1" × 0.877"), C (1 1/4" × 1.087"), D (1 3/4" × 1.506"), E (1 3/4" × 1.506")	9843T603	000000	5/8", 3/4", 1", 1 1/8", 1 1/4", 1 1/2", 1 3/4"	3451N809	00000	3,600	3,705	0.015"	0.5°	-55 to 245	Hytrel	6408K98	000000

Impact Spline Drive to Square Drive Adapters

Attach your square-drive impact socket to a spline-drive impact wrench. These tools are typically used where high torque is required, such as heavy equipment in the aerospace and automotive industries. These adapters are sturdy to withstand the high torque and force of impact tools.

Drive Size (Gender)	Overall Lg.	Material		Each
No. 5 Spline Drive (Female) × 3/4" Square Drive (Male)	3 7/16"	Black-Oxide Steel	8515N11	000000
No. 5 Spline Drive (Female) × 1" Square Drive (Male)	3 5/8"	Black-Oxide Steel	8515N12	000000

Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete

Instead of investing in multiple bits, change the bit body to drill a different-sized hole. These hollow bits remove a large core of material from concrete, brick, and masonry for installing pipe and conduit. The carbide tip resists wear and heat to stay sharp. Bits include a pilot drill to make starting holes easier.

Spline Shank for Hammer and Rotary Drilling


	Spline Shank

The shank has 12 splines for use with a spline-drive rotary hammer, which rotate and hammers bits simultaneously to penetrate material. Also known as percussion or impact bits.

	Max. Drilling Dp.	Specs. Met	Includes	Mfr.		Each
Uncoated







	Standard Point

	1 1/2"	1.5"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A814	0000000


	1 3/4"	1.75"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A815	000000
	2"	2"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A816	000000
	2 1/2"	2.5"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A817	000000
	3"	3"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A818	000000
	3 1/2"	3.5"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A819	000000
	4 1/2"	4.5"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A822	000000
	5"	5"	17"	12"	ANSI B212.15	Pilot Drill	Tru-Cut	3084A823	000000

Accessories and Replacements for Drill Bits

Changeable Bit Bodies

	Decimal Size Equiv.	Overall Lg.	Component	Specs. Met		Each
Uncoated Carbide-Tipped Steel



	1 1/2"	1.5"	5"	Bit Body	ANSI B212.15	3084A43	0000000


	1 3/4"	1.75"	5"	Bit Body	ANSI B212.15	3084A44	000000
	2"	2"	5"	Bit Body	ANSI B212.15	3084A45	000000
	2 1/2"	2.5"	5"	Bit Body	ANSI B212.15	3084A46	000000
	3"	3"	5"	Bit Body	ANSI B212.15	3084A47	000000
	3 1/2"	3.5"	5"	Bit Body	ANSI B212.15	3084A48	000000
	4 1/2"	4.5"	5"	Bit Body	ANSI B212.15	3084A56	000000
	5"	5"	5"	Bit Body	ANSI B212.15	3084A57	000000

Extensions, Replacement Shanks and Replacement Pilot Drills

		Each
6" Overall Length Extension	3084A59	000000
12" Overall Length Extension	3084A63	00000
18" Overall Length Extension	3084A64	000000
Spline Shank	3084A132	00000
Pilot Drill for Changeable-Size Masonry Core Drill Bit	3084A58	00000