Linear Shafts With Retaining Ring Grooves

■ D Section Precision Reference

D tolerance
D	g7	f8
3	-0.002 -0.012	-
4	-0.004 -0.016
5
6		-0.010 -0.028
8	-0.005 -0.020	-0.013 -0.035
10
12	-0.006 -0.024	-0.016 -0.043
13
15
16
18
20	-0.007 -0.028	-0.020 -0.053
25
30

    

Part Number		L can be specified down to 1 mm increments	N	M		d		Applicable buckle
Type	D				Tolerance		Tolerance
(D Tolerance g7) E-SFAR E-SSFAR E-PSFAR E-PSSFAR (D Tolerance f8) E-PSFGR	3	10 to 400	2	0.5	+0.05 0	2	+0.06 0	NETW□2
	4	10 to 400		0.7	+0.1 0	3		NETW□3
	5	10 to 400				4	+0.075 0	NETW□4
	6	20 to 600				5		NETW□5
	8	20 to 800	3	0.9		7	+0.09 0	NETW□7
	10	20 to 800		1.15	+0.14 0	9.6	0 -0.09	STW□10
	12	20 to 1000	4			11.5	0 -0.11	STW□12
	13	25 to 1000				12.4		STW□13
	15	25 to 1200				14.3		STW□15
	16	30 to 1200				15.2		STW□16
	20	30 to 1200		1.35		19	0 -0.21	STW□20
	25	35 to 1200	5			23.9		STW□25
	30	35 to 1200		1.65		28.6		STW□30

Outer diameters 3, 4, and 5 are not compatible with E-PSFGR  

Feature 1: Has high-precision dimensional tolerances and is widely used in various precision equipment.
Feature 2: Uses bearing steel (45 or GCr15) with excellent wear resistance and SUS440C or equivalent high-hardness corrosion-resistant steel, which are high-frequency quenched to enhance wear resistance while maintaining original toughness.
Feature 3: Various additional processing options are available to meet different usage environments.
Feature 4: Usually used in combination with linear bearing products, it provides excellent linear guidance. Compared to general shaft and bushing structures, even during high-speed reciprocating motion, there is minimal wear.
Feature 5: Optional hard chrome plating provides excellent rust resistance, and the coating hardness reaches HV750. It will not be easily worn when used with high-hardness workpieces.

  

(2) Decreased hardness in the machined area  After quenching the base material, machining may cause some areas to lose hardness due to annealing: - All external threads  -All steps  -Internal threads: When M ≥ D/2, double-hole internal thread type, hard chrome plated products made of SUS440C or equivalent high-hardness corrosion-resistant steel  -Additional processing for wrench slot (SC-WSC-SX)  -Additional processing for flat surface (FC-WFC)  -Additional processing for V-groove (VC-WVC)  -Except for full-length hardened type.

Only the shaded area of section D is hard chrome plated.

(3) Coating for Surface Treatment  After surface treatment of the base material, processing is performed. The following areas are not plated: - Grooved section  -External thread section  -Internal thread section  -Wrench slot, V-groove, flat surface, cut surface  -The inside of the pipe-type guide shaft may rust if hard chrome plating is not applied.

Anti-rust performance of metal materials and surface treatment Click Anti-rust performance table