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Economy series Product Overview Alterations Economy series
Linear Shafts Linear Shafts

QAccuracy Standards
· Circularity, Straightness, L Dimension Accuracy · Straightness measurement method
Shaft ends are supported on V-blocks and
D
turned 360 degrees to measure shaft
runout using a dial indicator.
M - K
L 1/2 of measured runout is defined as
the straightness.
· D Section Circularity · Straightness
Shaft Dia. Shaft Dia. Standard products Economy series Economy series Shaft Overall Standard products Economy series Economy series
(from) (to) g6 g7 f8 Dia. Length g6 g7 f8
2 5 0.004 0.012 - ≤100
5 10 0.004 0.012 0.012 3-4 >100 (L/100)×0.05 or Less (L/100)×0.05 or Less
10 13 0.004 0.012 0.012 ≤100
13 18 0.005 0.016 0.016 5 (L/100)×0.03 or Less (L/100)×0.05 or Less
18 20 0.005 0.016 0.016 >100
20 40 0.006 0.02 0.02 6~50 ≤100 0.01 or Less 0.025 or Less 0.025 or Less
40 50 0.007 0.02 - >100 (L/100)×0.01 or Less (L/100)×0.025 or Less (L/100)×0.025 or Less

· L Dimension Tolerances · Perpendicularity
4 4
Dimension (from) Dimension (to) Standard products ±0.1 Economy series D
Linear Guides / Linear Shafts / Linear Bushing / Ball Splines / Oil Free Bushings 1000 1000 ±0.2 0.2 Oil Free Bushings Linear Bushing / Ball Splines / Linear Guides / Linear Shafts /
g6
g7/f8
6
2
6
30
120
30
±0.3
400
120
±0.5
±0.8
400
1500
±1.2
Linear Guides QSurface Hardness·Surface Treatment Standard Guides Linear
· Reduced Hardness around Machined Areas
· Surface Hardness
Effective hardening layer depth of the quenching shaft Surface Treatment Plating Layers Machining is applied after base materials are
P.04-011 Shaft Tolerance g7 (Economy series) Effective hardening layer depth case hardened. In the example below, the machined area may generate heat that P.04-011
Cross Roller Guides O.D. (D) GB: Equivalent to 45 Equivalent to SUJ2 high-hardness corrosion The parts that may be reduced in Guides Cross Roller
causes a decrease in hardness (approximately 10mm around the machined area).
Shaft Tolerance g6
SUS440C or equivalent
JIS: Equivalent to S45C
resistant steel
hardness due to annealing are:
3
· Female thread: when M≥D/2
4
5
P.04-039 12·13 0.3 or More 0.5 or More 0.5 or More About 10 About 10 About 10 · Wrench Flat alteration (SC·WSC·SX) P.04-039
6~10
· Set Screw Flat alteration (FC·WFC)
Linear Shafts / Bushings 15~20 0.8 or More 1.0 or More 0.7 or More Bushings Linear Shafts /
0.5 or More
0.5 or More
0.7 or More
25~50
P.04-043 · Plating of surface treatment No electroplating treatment is applied to the following parts. P.04-043
Machining is applied after base materials
Ball Splines are surface treated. D · Groove part Ball Splines
· Female thread part
In the example on the right only part D
· Wrench flat, set screw flat, and cut section
is hard chrome plated.
P.04-107 P.04-107
Oil Free Bushings Bushings Oil Free
P.04-126 P.04-126
Shaft Supports / Collars Collars Shaft Supports /
P.04-144 P.04-144
04-045 04-046