Ball Splined-Hollow Type, Key Provided Straight Nut, One End Tapped

 

Type of Spline Shaft	Dh8	L 1mm increments	M (Coarse) Selection				d	D1		L1	L2	L3	bH8	h	r	t	u	Thickness deviation A-B	Basic Rated Torque		Basic Load Rating		Static Allowable Moment
																			Dynamic Ct (N·m)	Static C0t (N·m)	Dynamic C (kN)	Static C0 (kN)	M01 (N·m)	M02 (N·m)
									Tolerance
E-BKFS	16	70~500	10				8	31	0 -0.039	50	34	17.5	3.5	3.5	1.75	2	2	1.0 or Less	35.7	65.1	4.3	7.7	37.1	260
	20	80~600		12			10	35		56	39.7	29	4	4	2	2.5			59.5	107.8	5.9	10.7	55.3	380
	25	90~800			18		15	42		71	50.3	36					3		135.1	243.6	10	15	103.5	685.9
	30	100~800				20	16	47		80	60	42							190.4	343	11	19.6	148.4	932.7

When Spline Shaft ① is configured, there is no guarantee that the keyway positions of the 2 nuts are concentric.
When Spline Shaft ② is configured, the surface will be light yellow, and there may be a color difference.
  The following parts may not be plated and may rust.
  -Cut section
  -Groove part
  -Tapped part
  -Inner hole of spline shaft
 

■Ball Screws

Precision Ball Screws
Φ8	Φ10	Φ12	Φ15	Φ20	Φ25

 

Rolled Ball Screws
Φ8	Φ10	Φ12	Φ15	Φ20	Φ25

■Precautions for Selection and Use of Spline Shaft
1. The relative positions of the grooves of Spline Shaft, the keyways and oil holes of straight nuts, and all the alterations (wrench flat, set screw flat, etc.) in the 3D model are for reference only and may differ from their actualpositions.
2. When re-inserting a nut into the Spline Shaft, be sure to insert it horizontally, otherwise the ball will fall off.
3. As resin parts are used inside the nuts, please use them at temperatures below 80℃.
4. Although the nuts are greased on the inside before leaving the factory, please re-grease them every 2~3 months or every 50km of traveling distance after receipt of the goods, otherwise their use will be impaired.
5. No guarantee is given for the noise level of this product.
6. No guarantee is given that the Spline Shaft or nuts of this product will fall freely.
7. This product is a machined type, so there will be knife patterns and color difference in its appearance. It is normal for the product to have some scratches or color changes. Please feel free to use.
8. The Spline Shaft is quenched, and annealed during machining.
  Due to the annealing treatment, the hardness of the machined part + area about 15 mm before and after the part may be reduced (see the following example). And the annealed section is out of the guaranteed range of outerdiameter dimensional tolerance.
  Subtract the size of the annealed section when calculating the stroke.