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TS0804

Model TS0804 / TS / sanmi.co.jp (Official website)

Standard-stock ground precision ball screw with screw shaft outer diameter 8 mm and lead 4 mm. Accuracy grade C5, pre-packed with Albania S2 grease.

Last verified: (date the content was verified against the source document)

Specifications

Screw shaft outer diameter d 8 mm
Lead ℓ 4 mm
Accuracy grade C5A
Basic dynamic load rating Ca 2350 N
Basic static load rating C0a 3300 N
Preload Torque 2.0 N·cm
Overall length 100～340 mm
Circulation Count 2.5 turns, 1 row

TS model comparison

Compare 7 models in the same series by specification.

Model Screw shaft outer diameter d Lead ℓ Overall length Accuracy grade Basic dynamic load rating Ca Basic static load rating C0a Preload Torque Circulation Count
TS0802 8 mm 2 mm 100～310 mm C5A 1950 N 2600 N 2.0 N·cm 2.5 turns, 1 row
TS0804 This product 8 mm 4 mm 100～340 mm C5A 2350 N 3300 N 2.0 N·cm 2.5 turns, 1 row
TS1002 10 mm 2 mm 100～400 mm C5A 2250 N 3300 N 2.5 N·cm 2.5 turns, 1 row
TS1004 10 mm 4 mm 180～455 mm C5A 3350 N 5900 N 4.5 N·cm 2.5 turns, 1 row
TS1005 10 mm 5 mm 180～455 mm C5A 3350 N 5900 N 4.5 N·cm 2.5 turns, 1 row
TS1010 10 mm 10 mm 180～600 mm C5A 2200 N 3500 N 4.5 N·cm 1.5 turns, 1 row
TS1202 12 mm 2 mm 180～455 mm C5A 2450 N 4100 N 3.5 N·cm 2.5 turns, 1 row

How to choose Ball screw

Points to check when selecting, with the values for this product (TS0804).

  1. 1. Determine lead from required speed and resolution

    This product: Lead ℓ 4 mm

    Lead is the linear travel per shaft revolution. Listed products range from 1 to 40 mm. A larger lead allows faster feed at the same rotational speed but increases required torque and makes the travel per pulse coarser. Calculate it backward from maximum speed, maximum motor rotational speed, and positioning resolution.

  2. 2. Select shaft outer diameter from load and rigidity

    This product: Screw shaft outer diameter d 8 mm

    Shaft outer diameter affects load capacity, rigidity, buckling load, and critical speed. Listed products range from 8 to 32 mm. For long overall lengths or high-speed rotation, a thicker shaft is required to avoid deflection and resonance. Check the permissible rotational speed including the support method.

  3. 3. Verify life using basic dynamic load rating

    This product: Basic dynamic load rating Ca 2350 N

    The basic dynamic load rating Ca is the axial load used as the reference for life calculation. Listed products range from 1950 to 16100 N. Calculate the rated life from the average operating load and travel distance, and confirm it meets the required service years. Life is approximately inversely proportional to the cube of the load ratio.

  4. 4. Check shock loads against static load rating

    This product: Basic static load rating C0a 3300 N

    The basic static load rating C0a is the axial load permissible at standstill or under impact. Listed products range from 2600 to 33400 N. Confirm that a sufficient static safety factor is secured against maximum loads such as inertial forces during sudden stops and machining reaction forces.

  5. 5. Select accuracy grade matching positioning accuracy

    This product: Accuracy grade C5A

    The accuracy grade indicates the permissible lead error range; a smaller number means higher accuracy. Listed examples are mainly C5 with ground finish. Choosing a grade beyond what is required raises cost, so determine it by comparing with the required positioning accuracy.

  6. 6. Balance backlash and preload torque

    Axial clearance for listed products is 0 to 0.03 mm. For applications where backlash (play on reversal) is undesirable in reciprocating motion, select preloaded types. However, a higher preload torque (2 to 25 N·cm for listed products) increases drive torque and heat generation, so verify it against motor capacity.

  7. 7. Match overall length and shaft end machining to the equipment

    This product: Overall length 100～340 mm

    Overall length for listed products ranges from 85 to 2500 mm. Determine it by adding nut length and clearance to the stroke, including the mounting section for the support bearings. Long shafts face stricter constraints from critical speed and buckling, so consider them together with shaft outer diameter.

This guide was written by AI based on the listed products' documents and specification items.

About Ball screw and all products

Description

Ground ball screw with screw shaft outer diameter 8 mm and lead 4 mm. Available in overall lengths of 100 to 340 mm, with flange-type mounting.

Features

  • Precision finish by grinding
  • Accuracy grade C5
  • Pre-packed with Albania S2 grease

Applications

  • Machine tools
  • Industrial machinery

FAQ

Q. What are the accuracy grade and grease of the TS0804?
A. The TS0804 has accuracy grade C5 and is pre-packed with Albania S2 grease. The accuracy grade is indicated as C5A.
Q. What are the screw shaft dimensions and overall length range of the TS0804?
A. The screw shaft outer diameter d is 8 mm and the lead l is 4 mm. Overall lengths of 100 to 340 mm are available, and the mounting section has a flange shape.
Q. What are the load ratings and preload torque of the TS0804?
A. The basic dynamic load rating Ca is 2350 N and the basic static load rating C0a is 3300 N. The preload torque is 2.0 N·cm.
Q. What applications is the TS0804 suited for?
A. It is intended for machine tools and industrial machinery. Its key feature is precision finishing by grinding.
Q. What are the number of turns and machining method of the TS0804?
A. The number of circuits is 2.5 turns × 1 circuit. The screw shaft is precisely finished by grinding.

Written by AI based on the content of the source documents.

Source documents

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